With so many colors to choose from, the chic styling possibilities are endless! Crafted from polished platinum over sterling silver, each delicate ring features your choice of colorful gemstones for an on-trend look. Buy one or two to supplement your existing collection of stacking rings, or buy multiples to start a new one!
Please Note: This ring features an undergallery, so if you are between sizes it is recommended that you please go up a size.
Keep away from bleaching agents. Gemstones may vary in color and/or pattern. Please allow for these natural variations. All weights pertaining to gemstones, including diamonds, are minimum weights. Additionally, please note that many gemstones are treated to enhance their beauty. Click here for important information about gemstone enhancements and special care requirements.
Platinum can be used as a finish coating over sterling silver or copper alloys. Its bright, pure luster enhances the brilliance of gemstones and does not discolor or oxidize. Platinum plating is also characterized by its good resistance to surface abrasion, making jewelry pieces more durable against everyday and long-term wear. Over time, platinum plating will wear off and therefore will require re-plating.
To care for your plated jewelry items:
Amethyst, the most precious member of the quartz family, exhibits purple shades ranging from pale lilac to deep purple, sometimes exhibiting reddish or rose overtones. Very deep-colored amethysts are the finest and most highly valued. Some stones are so over-saturated with color they have areas that are blacked out, which can negatively impact their value. Paler shades, sometimes called "Rose of France," were common in Victorian jewelry. Banding—darker and lighter zones of color—is also a common occurrence. Occasionally, amethyst is even found combined with its sister quartz, citrine, into a single stone called ametrine.
The birthstone for February, amethyst is an extremely popular gem for jewelry because of its regal color, variety of sizes and shapes, affordability and wide range of hues. It also is the recommended gem for couples celebrating their 6th and 17th wedding anniversaries. With a hardness of 7.0 on the Mohs Scale , amethyst can occur as long prismatic crystals that have six-sided pyramids at either end, or can form as drusies that are crystalline crusts that only show the pointed terminations.
The ancient Greeks believed that amethyst made one immune to the effects of alcohol. In fact, the name even comes from the Greek word amethystos, which means “not drunken.” Legend has it that the amethyst originated from Bacchus, the god of wine. Bacchus became angry at the mortals and vowed that the next mortal to cross his path would be eaten by tigers. Amethyst, a beautiful young maiden, was on her way to worship the goddess, Diana. Diana turned her into colorless quartz to keep her from being eaten. Bacchus observed the miracle and repented his hasty decision. He poured wine over the young maiden, leaving her feet and legs colorless. This is the reason that amethyst crystals are usually uneven in color and have a colorless base at the bottom. Because amethyst was believed to prevent drunkenness, wine goblets were often carved from it in ancient Greece. Today, the gem still symbolizes sobriety.
Amethyst has been a part of history throughout the ages. Evidence suggests that prehistoric humans used amethysts for decoration as early as 25,000 B.C. Legends suggest that the Egyptian queen Cleopatra wore an amethyst signet ring, as did Saint Valentine, who bared an amethyst engraved with the figure of Cupid. During medieval times, people used the stone as medication to stay awake and alert. Leonardo Da Vinci claimed that amethyst could dissipate evil thoughts and quicken the intelligence. In some legends, the stone represents piety, celibacy and dignity. In the Middle Ages, for instance, the gem was an important ornamentation for the Catholic Church and other religions. It was considered the stone of bishops, and they still often wear amethyst rings. In Tibet, amethyst is considered sacred to Buddha and rosaries are often made from it. Amethyst has also long been a favorite of kings and queens for its royal purple hues that symbolize wisdom, strength and confidence. Amethysts are even featured in the British Crown Jewels and were worn by Catherine the Great.
Amethyst’s availability and magical qualities make it the stone of preference in ancient lore and mysticism. As a meditation stone, it is said to quiet the mind, promote contemplation, sharpen psychic powers and uplift the spirit. It is a stone of deep wisdom. Folklore says it can quicken the wit, calm fears, ward off anger and overcome alcoholism. It has a royal purple essence that is said to lend courage to travelers, scare off thieves and protect travelers from harm, sickness and danger. Placed under the pillow or worn to bed, there are claims it promotes peaceful sleep, pleasant dreams, and the healing of tired joints and muscles. Amethyst can also be worn to supposedly make the wearer gentle, amiable and happy.
The stone is mined in Brazil, Uruguay, Bolivia and Argentina, as well as in Zambia, Namibia and other African nations. Very dark amethyst in small sizes also is mined in Australia. But the ideal for fine quality amethyst was set by a Siberian variety, often called Russian or Uralian amethyst, which is now considered a defunct source. Generally, South American amethyst tends to come in larger sizes than African amethyst, but the African variety has a reputation for having deeper color intensity and is therefore considered more valuable. The African version also is harder to come by than amethyst mined from South America. Most of today's amethyst comes out of Brazil.
Named from the French word for lemon, “citron,” citrine is a variety of quartz available in a range of golden hues from lemon, to straw, to sun yellow, to deep gold, to orange, brown and deep red. Darker colors are more highly valued, including the medium golden-orange and dark-sherry colors, sometimes called Madeira citrines after the color of the wine.
Citrine crystals can form together with amethyst to form ametrine, or with smoky quartz to form bicolored quartz. Citrine is generally less expensive than amethyst, and is also available in a wide range of calibrated sizes and shapes, including very large sizes. Considered an alternative to topaz as the birthstone for November, it is also thought to be the traditional gift for couples celebrating their 13th and 17th wedding anniversaries. Citrine ranks a 7.0 on the Mohs Scale, and because of this durability, it is ideal for jewelry wear.
Almost all citrine on the market is heat-treated amethyst, and generally starts life as either smoky quartz or amethyst geodes. Heat treatments first turn them clear and then give them a permanent color ranging from yellow to brownish-red. In some amethyst deposits, the amethyst has been partially or fully changed to brown citrine by natural means of heating, thereby transforming it into citrine. Natural citrine is pale yellow to orange, and occurs in much lighter hues than the heat-treated material. Citrines whose colors have been produced by artificial means tend to have much more of an orange or reddish caste than those found in nature. Since most citrine was originally amethyst that was heated to turn its color to gold, both citrine and amethyst jewelry should be kept away from prolonged exposure to strong light or heat.
Citrine is found in volcanic rocks and quartz veins and owes its color to the presence of iron. Most citrine is mined in Brazil, but almost all of the Brazilian material is heat-treated amethyst. Supplies are most plentiful in the Brazilian state of Rio Grande do Sul, particularly from the Serra Mine. The Ira' Mine also produces large quantities of the gem. Citrine can also be found in the Ural Mountains of Russia, in Dauphine, France, and in Madagascar.
In ancient times, citrine was carried as a protection against snake venom and evil thoughts. It was thought to give calmness and mental balance to its wearer. Throughout history, people have confused citrine for topaz. Many citrines were sold as topaz and thus thought to carry the same qualities, such as knowledge and beauty. Today, citrine symbolizes truth and integrity, and is believed to promote creativity and personal clarity. It is also believed to impart happiness and cheer to its wearer while raising self esteem, as well as cleanse, regenerate and attract abundance.
Peridot features a lively yellow-green color that is transparent with an oily luster. The iron that creates peridot’s color is an integral part of its structure, so the gem is only found in various shades of green. It is most prized in lime hues, but Italian peridot is a rich olive color and popular American peridot is a beautiful light yellow-green. The Romans called peridot “evening emerald” because its exquisite green color was said to glow at night. This is perhaps because the stone exhibits double refraction, meaning that when looking through the stone, objects appear double. So when looking into a faceted peridot, the number of bottom facets appears to be double the actual number, creating a glittering sensation.
Pronounced PEAR-A-DOE, the word “peridot” comes from the French word meaning “gem.” It is the gem variety of the mineral olivine and ranks a 6.5-7.0 on the Mohs Scale.
Born in cauldrons of fire, peridot is considered the “volcanic gem,” since small crystals of it are often found in the rocks created by volcanoes. In fact, Hawaiian legend called peridot the divine tears wept by Pele, goddess of the volcano. The island of Oahu even has beaches made out of olivine grains, but they are much too small to cut into peridot. Samples of the gem also have been discovered in meteorites that have fallen to Earth, many of which are more than a billion years old.
Peridot traces its jewelry roots to 3,500 years ago. The stone was first mined by the ancient Egyptians on the volcanic island of Zebargad in the Red Sea. Known as the “serpent isle,” it was infested with poisonous snakes that interfered with mining activity until one Pharaoh had them all driven into the sea. Today, Native Americans mine most peridot on the San Carlos Reservation in Arizona. Interestingly, almost all peridot sold in Hawaii is from Arizona, despite the fact that peridot is produced by Hawaii's volcanoes. The gemstone is also found in Norway, Brazil, China, Egypt, Italy, Myanmar and Sri Lanka. An exciting new deposit was discovered in Pakistan in 1994, yielding some of the finest peridot ever seen, including one stone that weighed more than 300.00ct.
Peridot is among the oldest known stones and has been mined as a gem for thousands of years. As early as 1575 to 1350 B.C., the ancient Egyptians used peridot beads in their ceremonial jewelry. In fact, it is believed the stone was one of the favorite gems of Cleopatra and that some of the “emeralds” she wore were actually peridot.
Ancient Egyptians also carved small drinking vessels out of large chunks of peridot. Priests would drink soma from them in rituals, believing the soma would put them in touch with the nature goddess, Isis. Legend has it that King Soloman traded cedar trees from Lebanon for 12 soma drinking cups and 144 liters of soma. The Egyptians made this trade for ramp logs to build their pyramids at Gisa, while King Soloman was said to have been enlightened by drinking soma from the peridot cups. Today, Mexican hill tribes still drink soma from green glazed cups to put them in touch with nature and their ancestors’ spirits. Additionally, some Native American Indians in Arizona use tea made from peyote ground with peridot crystals in their rituals.
Peridot has also been important to other cultures throughout history. Late in the Ottoman Empire (1300 to 1900), peridot was a highly prized gem and Turkish Sultans amassed some of the world’s largest collections of the gemstone. It is mentioned in the Bible under the name of “chrysolite,” and was used to decorate medieval churches with samples that were most likely carried back to Europe by the Crusaders. Large stones weighing more than 200.00ct adorn the Shrine of the Three Magi at the Cologne Cathedral in Germany.
Throughout the ages, peridot has been believed to hold mystical powers of protection and healing. The ancients regarded the stone as a symbol of the sun and wore it in amulets to prevent nightmares and drive away evil spirits. It was even favored by pirates to protect them against evil. Peridot was said to be useful for calming raging angers, curing nervous afflictions and promoting quiet sleep. It was also used as a medical remedy to treat asthma and ward off fevers. Peridot was also believed to strengthen any medicine drunk from goblets carved from the stone. South American Shamans use peridot to ward off snakebites and the evil spirits who have taken the form of mosquitoes who bring the sleeping sickness. They also say the heating of magic mushroom tea by peridot takes them on trips to the ancestor heavens.
Today, peridot is believed to bring the wearer success, peace and good luck. To be most powerful, it is said that the stone should be mounted in gold and surrounded with small diamonds. With powers that are thought to bring protection and health, modern folklore also says it can be used to attract love and calm anger while soothing nerves and dispelling negative emotions. The gem is believed to protect the wearer from bad dreams when set in gold.
Peridot is considered the birthstone of August. Given as a symbol of fame, dignity and protection, this gem is also traditionally given to couples celebrating their 16th wedding anniversaries.
With its uniquely mystical appearance, quartz was the “rock crystal” used in ancient times to make crystal balls. It was believed to attract energy and is still considered to be spiritual today. The gemstone was once believed to be a compact form of ice. In fact, the Greeks originally named quartz “krystallos,” meaning ice, but this terminology soon applied to any type of crystal.
Often identified by its six-sided prism shape, quartz is the most common mineral on Earth, found in nearly every environment throughout the globe. With a ranking of 7.0 on the Mohs Scale, it is a component of almost every rock type and occurs in virtually every color imaginable. Quartz has a great amount varieties that are well-known by other names, including amethyst, citrine, ametrine, rock crystal, agate, druzy, chalcedony, tigers eye and many more. There are also several varieties that hold the name “quartz,” including rose quartz, smokey quartz and rutilated quartz.
The pale pink color of quartz is known as rose quartz, the traditional gift for couples celebrating their 2nd anniversary. It is a delicate powder pink color that ranges from transparent to translucent. Transparent rose quartz is quite rare and is usually so pale that it does not show much color, except in large sizes. The translucent quality of rose quartz is much more common and is used for jewelry and carvings.
Rose quartz is probably one of the most prized stones for its mystical properties. Known as the “Heart Stone,” it is believed to have incredible powers to balance emotions and open the heart. Folklore says rose quartz can comfort brokenhearted people, bringing healing and clarity to the heart and allowing the wearer to learn to trust again. The stone is also said to foster happiness and the joy of life by bringing about contentment in love and filling one with optimism, tenderness and gentleness.
In addition to helping with romantic love, rose quartz is believed to enhance all other forms of love as well, including self-love, platonic and maternal. Its loving, nurturing energy is said to take away fears, resentment and anger and replace them with feelings of higher self-esteem and confidence. This soothing stone is also thought to balance emotions and heal emotional wounds. It is said to be especially powerful in times of stress or loss, bringing peace and calm to the wearer.
Ranging in color from nearly black to smoky brown, smoky quartz is transparent and owes its warm earthen hue to exposure to natural radioactivity. Care must be taken since its rich color will fade in the sun. Spelled either “smoky” or “smokey,” this variety of quartz is often incorrectly called “smoky topaz.”
Smoky quartz is believed to help dissolve negative energy, release stress and relieve depression. It is said to be a mild sedative with a relaxing effect that calms, soothes and restores balance and harmony. Folklore says the gem can embrace dark areas with light and love and therefore clear and cleanse the body both physically and emotionally. Smoky quartz is thought to be a warm, friendly and down-to-earth gem.
Rutilated quartz is a type of transparent rock crystal that contains long, fine needles of rutile crystals (titanium dioxide). These highly valued inclusions form a landscape of shining gold needles in an array of patterns that is breathtakingly beautiful. These golden inclusions are also known as Venus hair, Cupid’s darts and fleches d’amour (“arrows of love”). There is a less well-known variety called tourmalinated quartz that, instead of golden rutile, forms black or dark green tourmaline crystals.
Although rutilated quartz is usually cut as a cabochon, it can be a difficult stone to attain a smooth surface without pits. This is because rutile ranks a 6.0 on the Mohs Scale, while quartz ranks 7.0. The difference in hardness between the two materials, and because of the way rutile forms inside, causes problems when cutting. Each final cut piece is unique, with no two being exactly alike. Modern folklore says rutilated quartz brings forth each person's strengths, originality and ability to relate to others.
Often referred to as the “Queen of Garnets,” rhodolite is the violet-red variety of the garnet family. Its most prized color is a beautiful raspberry, but the gem can also be found in shades of pink, red and wine. The name is derived from the Greek words “rhodon” and “lithos,” meaning rose-stone, which connects the gemstone today with the raspberry-pink flower known as the rhododendron.
Rhodolite is a combination of almandine and pyrope garnets. Although it is occasionally found in volcanic rock, the stone is most often found in alluvial deposits in the form of water-worn pebbles. For this reason, large solitaires weighing 5.00ct or more are seldom seen at retail. Most rhodolite is mined in Sri Lanka, Tanzania and Zimbabwe. It ranks a 7.5 on the Mohs Scale and is ideal for jewelry.
The ancients wore rhodolites as amulets for protection from injury or death in battles. Modern folklore says rhodolite can help one understand dreams, as well as bring about love and devotion when given as a gift.
A symbol of strength and intelligence, topaz derives its name from Topazios, an island in the Red Sea that is known today as Zabargad. The Greek word “topazios” means “to seek,” since the island was covered with a thick fog and difficult to find. Gemstones found on the island were called topaz, although the stones were eventually found to actually be peridot. The real gem of topaz is found throughout the world, with different occurrences producing specific colors.
Brown, yellow, orange and red topaz are found in Brazil, Sri Lanka and Siberia. Most brownish topaz is heated to produce a permanent and glamorous pink color. Following the discovery of pink topaz in Russia during the 19th century, Imperial topaz was found. Featuring a sherry red, deep pink or reddish-orange color, the gem was so coveted that its ownership was restricted to the Czar, his family and those who received it as a royal gift. Today, Imperial shades are the most rare and, therefore, the most valuable.
Blue topaz is rarely found in nature and is most often created through a combination of heat treatment and irradiation. It is found in Brazil, Sri Lanka, Nigeria and China. Topaz is often colorless, too, and can be found in the United States, Mexico, Russia and Pakistan. In 1998, a new type of enhanced topaz made its appearance with a greenish-blue or emerald green color. All colors of topaz rank an 8.0 on the Mohs Scale of hardness.
Yellow topaz is November’s birthstone and blue topaz is December’s birthstone. Blue topaz is also the traditional gift for 4th and 19th wedding anniversaries, while Imperial topaz is celebrated as a 23rd anniversary gift. Perhaps the most famous topaz is a large, colorless stone known as the Braganza. It was discovered in Brazil in 1740 and was originally thought to be a priceless diamond. Today, the giant 1,680.00ct stone is set in the Portuguese Crown.
The mystery and allure of topaz goes back thousands of years. To the ancients, it was a symbol of love and affection and was thought to ward off sudden death. The Romans associated topaz with Jupiter, the god of the sun. The Greeks called it the Stone of Strength, believing it had the power to increase strength and make its wearer invisible in times of emergency. The Egyptians said the gem was colored with the golden glow of the sun god, Ra, making topaz a powerful amulet that protected its wearer against harm.
Topaz’s mystical curative powers were believed to wax and wane with the phases of the moon. The gem was said to change color in the presence of poisoned food or drink and falcons were carved on the stones to help earn the goodwill of kings and magnates. During the spread of the Bubonic plague in 1347-1400, the clergy touched topaz to people’s sores. Also in medieval times, the gem was thought to prevent death and heal physical and mental disorders. The stones were ground into powder and added to wine to prevent asthma and insomnia.
Today, topaz is said to be the gem that has the widest range of curative powers. It is believed to dispel enchantment, improve eyesight and protect against negative emotions such as depression, anger, fear, greed and envy. Its properties are supposedly enhanced when the gem is mounted in gold. Because of this association with gold, topaz is used to bring or enhance the wearer’s money-gathering abilities and has long been used in money and wealth rituals.
Wearing topaz is said to improve and deepen relationships, promote patience, ensure fidelity and enhance the ability to love. The gem is also believed to bring friendship, intelligence, long life, beauty and a pleasant disposition.
Garnet comes in a vast rainbow of naturally exquisite hues, occurring in every color except blue. It is the family of minerals that displays the greatest variety of colors than any other mineral. The eight major types of garnets include almandine, pyrope, demantoid, grossularite, tsavorite, hessonite, rhodolite and spessartite.
Named after the ancient gemstone city of Alabanda in Asia Minor, the most common type of garnet is almandine (also called almandite). It is a dark red to brownish red stone that is only slightly different from the chemical structure of its sister stone, called pyrope. While nature only grows pyropes in small sizes, it allows for almandine crystals to form in larger dimensions.
Pyrope is a high-quality garnet that can be purplish red, blood red, orange-red or crimson. It is often called the Bohemian garnet since its fierce and often slightly bronze color was highly popular in the 18th and 19th centuries when it came from the north-eastern part of the former Kingdom of Bohemia. In Europe during the Victorian times, pyrope garnets frequently decorated jewelry with many of these small stones tightly arranged along each other like the seeds of a pomegranate. In fact, the name “garnet” most likely was derived from the pomegranate, a fruit whose deep, red-purple color resembles some varieties of the gem. Many ancient pieces of garnet jewelry are also studded with the tiny red gems.
Demantoid is a rich green variety of garnet primarily found in the Ural Mountains of Russia. Russia’s leading court jeweler, Carl Fabergé, loved this brilliant garnet more than any other stone and used it in many of his creations that were lavishly adorned by the Tsars of Russia. Today, demantoid is appearing more often in the gemstone market because of new finds in Namibia. However, these particular garnets from Namibia lack "horsetail-inclusions,” the fine bushy-shaped inclusions that are characteristic of the sought-after Russian demantoids. The gem is quite rare and can cost several thousand dollars per carat depending on size and quality. The larger, brighter demantoids are exceedingly scarce and have been known to show exceptional brilliance, even higher than diamonds.
Grossularite, available in pinks, browns, greens and yellows, is especially cherished because of its many in-between shades and earth colors. In the last year of the 20th century, large grossularite occurrences were discovered in Mali. Charming because of their high brilliance, the Mali garnets make even the brown color attractive and vivid.
Tsavorite is the trade name for a fine green grossularite. It ranges from vivid light green to velvety deep green and, like all other garnets, features a strikingly high brilliance. Tsavorite was discovered in 1967 by British geologist Campbell R. Bridges, and was re-named by Tiffany’s in New York after its occurrence near the famous game park Tsavo-National Park. Mined in Tanzania and Kenya, this particular stone is quite rare and can cost several thousand dollars per carat depending on size and quality. Larger tsavorites are exceedingly scarce.
Hessonite is the variety name for a fine orange, cinnamon brown or pinkish variety of grossularite. It most commonly occurs in golds, oranges and browns.
Rhodolite is a pyrope-almandine garnet that features a velvety red color with a fine purple or raspberry colored undertone. One of the most popular varieties, it is mined in East Africa, India and Sri Lanka and was originally discovered in the United States.
Spessartite garnet can be red or blackish brown, but is most commonly available in golds, oranges and warmer browns. Originally named after its occurrence in the German Spessart Mountains, there was a surprising discovery of the bright orange-red stone in Nigeria and Namibia. Until then, spessartites had existed as mere collector’s items or rarities and were hardly ever used for jewelry because they were so rare. But the new location discovery changed the world of jewelry gemstones and spessartites made their way into jewelry fashion. The most popular type of spessartite is the mandarin garnet, a gem that features a bright orange hue.
Traditionally given as 2nd wedding anniversary gifts, garnets are celebrated as January’s birthstone. They are found all over the world, including Africa, Australia, Eastern Europe, the Middle East, North America, South and Central America, and Southeast Asia. The garnet ranges from 7.0-7.5 on the Mohs Scale and has been given many different names throughout the gemstone trade, including Arizona Ruby, Arizona Spinel, Montana Ruby or New Mexico Ruby. The stone features a high refraction of light that creates an amazing brilliance and luminosity. In fact, Noah used a garnet lantern to illuminate the darkness and navigate the Ark through 40 days and nights of torrential rain.
Throughout history, garnets have been widely known and prized for their rich hues and supposed mystical properties. Adored by the ancient Egyptian goddess Isis, the gem symbolized faith, truth and friendship and was a favorite of Egyptian jewelry artisans. Garnets were taken into the tombs with the dead as payment to the gods for safe passage through the nether world. It is said that King Solomon wore a large red garnet along with eleven other magical gems in his breastplate (representing the 12 steps of Jacob's Ladder) to help him win battles. Nineteenth-century Asiatic warriors even used the hard stones as bullets. In the 13th century, medieval travelers wore garnets as popular talismans and protective stones, many of which were carved with lions. The gems were thought to repel evil spirits, bad dreams and people with evil intent.
Today, garnets are thought to have protective powers and can be carried by travelers to protect against accidents. The stone is said to light up the night and protect its owner from nightmares. It is also believed to strengthen the body and mind by sparking creativity, dispelling anger and curing depression. People may use the stone to increase the power of their energy fields and gather good vibes. Current superstitions say that the stone symbolizes loyalty and can be exchanged between friends to symbolize affection and ensure they meet again. When used as a healing stone, it is said to relieve skin inflammations and regulate blood flow.
The great imposter of gemstone history, many famous rubies have been found to actually be red spinels. Perhaps the most famous of which is the Black Prince’s Ruby. Once worn by Henry V on his battle helmet, this 170.00ct red spinel is now set in the British Imperial State Crown. Another famous misidentification is the Timur Ruby, a 352.00ct red spinel now owned by Queen Elizabeth. This particular stone is engraved with the names of the Mughal emperors who previously owned it.
History is unclear whether these mistaken identities were merely accidents or clever substitutions of rubies for the less valuable spinels by dishonest jewelers. In Burma, spinel was recognized as a separate gem species in 1587, but the masquerade lasted for hundreds of years after that in most other countries.
Spinel carries a considerable amount of worth not only based on its history, but due to its brilliance and wide range of spectacular colors. When interpreted by the Greek, the word “spinel” means “spark” in reference to its beautiful sparkle. In addition to red, it can be found in shades of pink, purple, green, brown or black. An exceptional color from Burma is a vivid hot pink with an orange undertone. Spinel can also come in a beautiful blue hue, sometimes called cobalt spinel, but this color is quite rare.
The most beautiful colors of the stone are mined in Myanmar (formerly Burma), but spinels are also found in Sri Lanka, Tanzania and Russia. They have a hardness of 7.5-8.0 on the Mohs Scale and are traditionally given as a 22nd wedding anniversary gift.