Stabilized turquoise is enhanced through a process of coating the genuine gemstone with colorless acrylics or resin to fill porous gaps, harden the stone and maintain the stone’s color.
All weights pertaining to gemstones, including diamonds, are minimum weights. Additionally, please note that many gemstones are treated to enhance their beauty. View Gemstone Enhancements and Special Care Requirements for important information.
Onyx is a variety of chalcedony quartz that features a fine texture with a smooth black color. Some onyx can display white bands or ribbons against black or brown backgrounds. The bands that move through the stone run parallel and onyx is therefore sometimes known as zebra agate. Mined in Brazil, India, California and Uruguay, most onyx today is color-enhanced to increase its depth of color. It ranks a 6.5 on the Mohs Scale and is an ideal stone for carving. In fact, it is a favorite material of lapidary artists.
Onyx was very popular with the ancient Greeks and Romans. The name comes from the Greek word "onux" which means fingernail. Legend says that one day frisky Cupid cut the divine fingernails of Venus with an arrowhead while she was sleeping. He left the clippings scattered on the sand and the fates turned them into stone so that no part of her heavenly body would ever perish. In Greek times, almost all colors of chalcedony were called onyx. Later, the Romans narrowed the term to refer to only the black and dark brown colors, while the reddish brown and white onyx became known as sardonyx. Highly valued in Rome, sardonyx was especially used for seals because it was said to never stick to the wax. Roman General Publius Cornelius Scipio was famous for wearing sardonyx.
Worn during mourning in the Victorian age, onyx is now traditionally given as a 7th wedding anniversary gift. It is thought to increase happiness, self-control, courage, intuition and instincts. The stone is also believed to cool the yearnings of love and decrease sexual desire.
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' 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.
Today, topaz is said to be the gem that has the widest range of curative powers. It is believed to dispel enchantment and protect against negative emotions such as 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.
Aquamarine's name was derived from the Latin terms "aqua" meaning water and "mare" for sea. According to legend, aquamarine was the treasure of mermaids and held the power to keep sailors safe at sea. Sailors carried it to stay in the good graces of Poseidon and ward off seasickness. Other folklore says that aquamarine was the stone of the sea-goddesses and sirens. Sea goddesses were said to cleanse the stone in the ocean water at night by the light of the full moon. Beads of aquamarine are even found in ancient Egyptian mummy tombs, used as a tribute to the gods of the netherworld for safe passage.
From the lightest sky-blue to the deepest sea blue, aquamarines are found in an exceptionally beautiful spectrum of blue hues. With its clear brilliance, deeper colors are unusual in smaller sizes since it generally takes a larger stone to hold a darker shade. The most prized aquamarines are those displaying a deep, intense, pure blue with no green tints. These are more rare and therefore more valuable. Unlike its emerald sister, aquamarine is known for being relatively free of inclusions with evenly distributed color. It retains excellent clarity, which is why aquamarines are frequently cut with large step facets to show off their flawless surfaces, immaculate transparency and high brilliance.
The different shades of aquamarine are distinguished by their names. "Santa Maria" is the name for the rare, intensely deep blue aquamarines found in the Santa Maria de Itabira Mine in Brazil. Similar colors are found in some of the sparse aquamarine gemstone mines in Africa, especially in Mozambique. In order to better distinguish them, these aquamarines are denoted as "Santa Maria Africana." Not quite as deeply blue are "Espirito Santo" aquamarines from the Brazilian state of Espirito Santo. Another beautiful color has been named in honor of a Brazilian beauty queen from 1954, and has become famous as "Martha Rocha."
Aquamarine is thought to possess a number of mystical properties , with powers that allegedly develop best if the stone is immersed in sun-drenched water. It is a stone of peace, joy and happiness, especially in the renewing of relationships. Its pale blue color arises sympathy, trust and harmony, all feelings that soothe and calm emotional fires or problems. The gem is said to re-awaken love in married couples or spark new friendships. In fact, carrying an aquamarine is supposed to guarantee a happy marriage and to make its owner happy. As a necklace, it is the most magically ideal gift for a groom to give his bride on the day of their nuptials.
In ancient times, aquamarine was thought to be capable of preserving youth and health. In magic today, this beautiful stone is worn or carried to enhance the utilization of psychic powers. Aquamarine can be worn as a magic charm to ensure good health, to halt fear and to strengthen courage. Because it is a cleansing and purification stone, it can be worn or rubbed on the body as a part of a purification ritual. Aquamarine can also be worn or carried as a protective amulet while sailing or flying over water. Fishermen, sailors and pilots have long made it their special amulet against danger. Other modern beliefs suggest the Santa Maria aquamarine makes the heart beat faster.
Now and then, sensationally large crystals are found. The largest known aquamarine is a 243-pound stone found in Brazil in 1920. It was cut into many smaller stones, and a 13-pound uncut piece resides in the American Museum of Natural History. Another noted aquamarine is an 879.50ct step-cut flawless sea green stone that is on display in the British Museum of Natural History. Aquamarine is found in many exotic places around the world, including Afghanistan, Angola, Kenya, Madagascar, Mozambique, Nigeria, Pakistan, Sri Lanka, Russia, Zambia and Zimbabwe. Most of the gemstones available in the market today, however, come from Brazil.
Many modern designers have named aquamarine as their favorite stone, as its light color allows for a special creative freedom to bring out the character and brilliance of each stone. Gemstone artists get their inspiration for new cuts more often from aquamarines than from any other stone. These creative designer cuts have no doubt contributed to its high popularity. Aquamarine is the March birthstone and has become the traditional gift for 16 th and 19 th anniversary gifts. With an 8.0 ranking on the Mohs Scale , the stone is very durable and can stand up to everyday wear. It is the symbol for youth, hope, health and fidelity.
Lapis is a strong blue microcrystalline rock composed primarily of the mineral lazurite. Its value decreases with the presence of white patches called calcite, while small veins of golden pyrite inclusions are often prized. Top quality lapis lazuli comes from Afghanistan, but small quantities are also found in Siberia, Chile, the United States, Pakistan and Canada. It is one of the most valuable semi-opaque stones and is a relatively soft gem, ranking 5.0-5.5 on the Mohs Scale.
First mined in Afghanistan in 6000 B.C., lapis lazuli was used to heal eye maladies and was thought to help one acquire wisdom and serenity. The Romans believed it was a powerful aphrodisiac, while the Egyptians used lapis for cosmetic purposes and often carved it into vases and figurines. The ancient city of Ur had a thriving trade in lapis lazuli as early as the fourth millennium B.C. The name comes from the Latin word “lapis,” meaning stone, and from the Arabic word “azul,” meaning blue.
In the Middle Ages, lapis was thought to free the soul from error, envy and fear. Used by artists during the Renaissance , ground lapis created a beautiful blue pigment for paintings. The stone was inlaid in the columns of St. Issac's Cathedral and the panels of the Pushkin Palace, both in Petersburg. Today, lapis lazuli is traditionally given as a 9th wedding anniversary gift. It is believed to free the wearer of melancholy and strengthen total awareness, creativity and ESP.
One of the oldest known gems, turquoise has been prized for thousands of years. The Egyptians believed it had powerful mystical properties, and turquoise jewelry has been found interred with 7,500-year-old mummies. Ancient manuscripts from Persia, India, Afghanistan and Arabia say that the health of a person wearing turquoise could be assessed by variations in the color of the stone. Montezuma's treasure, now displayed in the British Museum, includes a carved serpent covered by a mosaic of turquoise.
Turquoise was especially revered by the Native American culture, an association that dates back to the Aztec empire more than 700 years ago. For the Aztecs, turquoise was reserved for the gods and mere mortals were forbidden to wear it. They believed it to be a gem of good fortune and a commodity more valuable than gold. Native Americans believed turquoise protected people from demons and they even placed turquoise in tombs to guard the dead. The stone's colors were thought to be symbolically blue for the heavens and green for the earth. Often warriors tied turquoise to their bows to ensure accurate shots.
Today, turquoise is still believed to provide protection and bring luck. It is said to also promote prosperity, love, healing, courage and friendship. The stone is thought to relax the mind and ease mental tension.
The gem's opaque turquoise color varies from shades of greenish blue to deep cobalt to sky blue. Some varieties display white or brown matrixes, which are streaks of the mother stone from which they came, while others have veins of black matrix running through them. Generally, the bluer the blue, the more highly valued the stone. A clear, even texture without mottling or veins is also preferred. The most rare and valuable color is an intense azure, but the most common is the mild to medium sky blue. Sometimes imitated by minerals such as chrysocolla, turquoise stones are often dyed or colored with coatings of various resins.
In the 13th century, turquoise was mistakenly believed to have come from the country of Turkey. Hence, its name came from the French word for Turkey, "Turquie". The stone was actually brought to Europe from Persia (now Iran), via Turkey. It is a mineral usually found in association with copper deposits and is sometimes mined as a by-product of copper mining.
Although turquoise is found in desert regions worldwide, especially in the southwestern United States, perhaps the finest and most valuable comes from the Sleeping Beauty mine in Globe, Arizona. It is named after the Sleeping Beauty Mountain which resembles a reclined woman in a slumbering state. Its turquoise is world renowned for its beauty that ranges from pure robin's egg blue to a darker royal blue.
While only ranking between 5.0 and 6.0 on the Mohs Scale of hardness, turquoise remains quite popular for jewelry. In Europe, turquoise rings are given as forget-me-not gifts, while in the United States, the stone is given as traditional 5th and 11th wedding anniversary gifts. It has even become a modern consideration for the December birthstone. When wearing turquoise over the years, the stone will absorb oil from a person's skin, causing a slight change to the color of turquoise.
Turquoise is commonly treated in various fashions to ensure its durability and visual appeal, especially when set in jewelry. If a stone has been treated, the type of process will be noted.
Turquoise is one of the oldest gemstones known in history going back 6,000 years BC and has been revered by almost every ancient culture. It is the alternate birthstone for December and has a Mohs rating of 5.0-6.0. Turquoise is a Hydrous Phosphate of Aluminum and Copper and may form as a chalky coating on rocks or finely disseminated crystals formed within small rock cavities. Rough such as this is not commercially viable, which has led to the development of reconstituted turquoise. Turquoise-bearing rock is pulverized and the turquoise is separated from the rock using a float process. The pulverized turquoise is then mixed with a colored resin, which is then injected into a mold to form a solid block. This is then cubed, preformed and fashioned into various shapes and sizes. It is an excellent method of using rough that would otherwise not be usable.
Found all over the world, agate has been creatively striped by nature. It is a type of chalcedony quartz that forms in concentric layers of colors and textures. Each individual agate forms by filling a cavity in a host rock. As a result, agate often is found as a round nodule with concentric bands like the rings of a tree trunk. Tiny quartz crystals called drusy (sometimes spelled as druzy) often form within the stone, adding to its beauty and uniqueness. Agate is a hard stone, within the range of 7.0-9.0 on the Mohs Scale.
In 1497, the mining of agate in the Nahe River valley in Germany gave rise to the cutting center of Idar-Oberstein. When the Nahe agate deposit was exhausted in the nineteenth century, Idar cutters started to develop the agate deposits of Brazil, discovering Brazil's rich deposits of many other gemstones. A famous collection of two to four thousand agate bowls, accumulated by Mithradates, King of Pontus, shows the popularity of agate at the time. Agate bowls were also popular in the Byzantine Empire. Collecting agate bowls became common among European royalty during the Renaissance and many museums in Europe, including the Louvre, have spectacular examples.
Although the small town of Idar-Oberstein is still known for the finest agate carving in the world, today Idar imports a huge range of other gem materials from around the world for cutting and carving in Germany. Cameo master carvers, modern lapidary artists and rough dealers flourish there, exporting their latest gem creations. It is an entire industry that grew from the desire for agate products during the Renaissance.
Agate was highly valued as a talisman or amulet in ancient times. It was said to quench thirst and protect from fevers. Persian magicians used agate to divert storms. Today, some believe that agate is a powerful emotional healer and helps people discern the truth.
Pronounced "vermay," vermeil is an electroplating process in which 14K gold or higher is coated over sterling silver. Officially designated by the jewelry industry, items may only be sold as vermeil if they have a minimum thickness of 100 millionths of an inch (2.5 microns) of gold over the silver. Regular gold plating is less than 2.5 microns.
The "vermeil" technique of plating sterling silver with gold originated in France in the 1750s. It differs from "gold filled" or "gold plated" in terms of the thickness or thinness of the microns over sterling silver. "Gold filled" pieces have a much thicker layer, between 15 and 45 microns, which is mechanically bonded to the base metal with heat and pressure. Vermeil is a more expensive version of "gold plated". It does not wear off as quickly as gold plating does. However, over time, vermeil wears off and therefore will require re-plating.
Gold/Platinum Embraced Silver or Bronze:
Our platinum and gold embraced collections feature layers of platinum or gold over sterling silver or bronze for a lustrous, radiant finish everywhere you look and touch.
To care for your plated jewelry items:
Earring Back Types
Butterfly Back: A double looped piece resembling a butterfly that fits over a post. Variations on this design are called push back clasps. The basic post and butterfly back are usually used for stud earrings and lighter weight drop earrings.
Hinged Snap Backs: This clasp features a hinged post that snaps into a groove on the back of the earring. It is commonly found on hoops. Sometimes the hinged post is curved to provide more room to fit around the ear, sometimes called a saddleback.
Hook Backs: This earring backing is simply a long, bent post that fits through the piercing. Hooks have several variations, most notably the shepherd's hook and the French hook. While thin wire hooks reduce the weight of long earrings, making them more comfortable, they aren't as secure as other clasp styles.
Lever Back: A hinged lever snaps shut against the curved post to form a closed loop around the ear lobe. This clasp is very secure and good for large or medium sized styles that drop just below the ear.
Omega: Also called French clips, this clasp has a straight post and a looped lever. The hinged lever closes around the post and is held against the ear with pressure. The omega clasp is the most secure clasp, especially for the larger, heavier earrings.
Screw back: This backing is a slight variation of the standard post and butterfly nut back. Instead of pushing on the back, the nut twists onto the threaded post. A screw back post design is often preferred for expensive diamond stud earrings that require increased security.
About the Collection
Feel elegant everyday with Portofino Italian Jewelry - a bold and sophisticated jewelry collection available exclusively at EVINE Live. Inspired by La Dolce Vita, or “the sweet life” in Italian, Portofino reimagines classic designs to deliver a refined modern look. Distinctly Italian in design, Portofino is crafted from exquisite 18K Gold Embraced™ sterling silver or bronze so you can enjoy luxurious looking jewelry without breaking the bank.
The Portofino label also features the Portofino Signature collection, offering bold designs crafted from 18K Gold Embraced bronze for unparalleled elegance and value. These exclusive rings, bracelets, earrings and necklaces have been embraced with brushed or polished gold for pieces perfect for entertaining, relaxing or going out.
About the Guest
With more than a decade experience in the fashion and jewelry industry, Angela Lanotte brings a unique perspective to the Portofino brand. Her passion for jewelry and Italian design has defined her extensive career. In addition to working in sales positions for many well-known brands, Angela has also served as a fashion consultant on major catwalks in Milan - one of the world's most renowned design capitals. Join Angela as she takes you on a journey to the Italian Riviera with this exclusive and exquisite jewelry collection.