Necklace & Bracelet Clasp Types
Lobster Claw Clasp: As a traditional clasp style found in bracelets and necklaces, the lobster claw is generally reserved for heavier styles that may need added strength. The closure's shape is more oblong, similar to a teardrop shape, and is controlled by a tip that opens and closes the spring in the clasp. This type is also considered a more expensive finding that can add to the overall value of the jewelry piece.
Magnetic Clasp: The popularity of the magnetic clasp has greatly increased in recent years. It is a quick and easy way to secure jewelry while not having to fuss with a tiny clasp, which can be difficult if you have long fingernails, arthritic hands or other mobility challenges. A magnetic clasp relies on a strong internal magnet that works to pull both ends of the clasp together. In most cases, a magnetic clasp is used for light to medium weight jewelry pieces that do not put excessive stress on the magnet.
Slide Insert Clasp: This type of clasp is exactly as it sounds. With a box-like shape that is hollow on the inside, the wearer will slide the nearly-flat tab into the box until it clicks, indicating a secure closure. On some jewelry, a slide insert clasp will be accompanied by a side safety catch, which adds strength and security to the clasp. Although this type of clasp is found on both bracelets and necklaces, it is particularly popular on bracelet styles. These types of clasps are often reserved for more expensive jewelry.
Spring Ring Clasp: One of the most common closure types, the spring ring clasp is typically used for light to medium weight bracelets or necklaces. It is round in its design and features a small tip which controls the opening and closing of the spring. The circle then closes around another smaller loop or link at the other end of the strand.
Toggle Clasp: A toggle clasp is a narrow piece of metal, usually designed in the shape of a bar, which is then pushed through a circular ring to act as a fastener. Unlike the lobster claw or spring ring clasps, a toggle clasp is not controlled by a spring. The pretty design is less secure than other closure types, but is usually meant to be a big part of the design and is meant to "show". The clasp is an attractive way to secure a chunkier link bracelet or necklace.
The symbol of spring and rebirth, the emerald has a color of green that communicates harmony, love of nature and a primeval joy of life. The word emerald was derived from the French “esmeraude,” which comes from the Greek root "smaragdos,” meaning simply “green gemstone.” For centuries, emerald green has been the color of beauty and eternal love. Even in ancient Rome, green was the color dedicated to Venus, goddess of love and beauty. Many cultures and religions today hold a special position for the color. For instance, green is the holy color of Islam; all states of the Arabian league sport green banners symbolizing the unity of their religion; and green is among the liturgy colors in the Catholic church. The emerald gem is May’s birthstone, and it is the traditional gift for couples celebrating their 20th and 35th anniversaries.
Emeralds come in a variety of light and dark shades of green, often with subtle background hues of other colors such as yellow, blue, brown or gray. Most often, the purer and richer the green color, the more valuable the stone. Flawless emeralds are exceptionally rare, and therefore command great prices (even higher than diamonds, in some instances). Most naturally grown emeralds, however, have numerous inclusions that weaken their structure and cloud their color. Flaws and cloudiness, called “jardin,” are very common in emeralds, so many are treated in some way to remove surface flaws and enhance color. The most common technique is to oil the stone with a green-tinted oil that strengthens the stone and fills in surface cracks.
Emerald gemstones have been prized for thousands of years for their lush green hues and rare beauty. Venus, the goddess of love, is said to have loved the stone, and ancient Romans associated the emerald with her because it symbolized reproduction. Nero is said to have watched the Roman games in the coliseum through a set of highly prized emerald glasses. It's also said that Isis, the mother goddess, wore a green emerald on her headband. Supposedly, all who looked upon it would be able to conceive and were guaranteed a safe trip through the land of the dead. The gem is also considered the magical stone of forest spirits (elves).
In ancient Egypt, emeralds were mined close to the Red Sea. This tranquil green gem was highly prized by priests and the wealthy, and it is said that Cleopatra loved it more than any other gem. In fact, gemstone mines called “Cleopatra’s Mines” were exploited by Egyptian pharaohs between 3000 and 1500 B.C., and were found empty when they were rediscovered centuries later. Even the ancient Incas and Aztecs in South America, where the best emeralds are still found today, worshipped the emerald as a holy stone. With the conquest of South America by the Spaniards in the sixteenth century, emeralds became more plentiful in Europe. Pizarro and Cortez took over the existing emerald and gold mines of the Inca and Mayan civilizations. They shipped these fortunes back to Spain, who in turn shipped them to trading ports throughout the world, turning Spain into one of the leading world powers of the time.
Phrases about emeralds appear in the Veda, ancient sacred writings of Hinduism, including “Emeralds promise good luck” and “The emerald enhances your well-being.” Treasure chests of Indian Maharajas and Maharanis contained wonderful emeralds. One of the largest emeralds in the world is the "Mogul Emerald.” Dating back to the year 1695, it weighs 217.80 carats. One side is inscribed with prayers, while the other side is engraved with opulent flower ornaments. This legendary stone was auctioned off at Christie’s of London for 2.2 million U.S. dollars to an anonymous buyer. Other famous emeralds include a cup made from pure emerald that was owned by Emperor Jehingar. It is currently located in the New York Museum of Natural History, as is a Colombian emerald crystal weighing 632.00 carats. The entire collection is owned by the Bank of Bogota and contains five valuable emerald crystals weighing between 220.00 and 1,796.00 carats.
Throughout the ancient world, emerald symbolized eternal hope, rebirth and the arrival of spring. The ancients ascribed numerous magical and mystical properties to this most precious of green gems. It was believed to give a person psychic powers, in that the gem could tell if a lover’s affections were true. Some cultures believed the gem rewarded its owners with love, intelligence, eloquence and a soothed soul. Middle Age seers used emeralds to foretell the future, as well as to ward off evil spirits and cure ailments ranging from bad eyesight to infertility. During the Renaissance, emeralds were used as a test for friendship among the aristocracy. It was believed that an emerald given to a friend would remain perfect as long as the friendship endured. The stone was also said to improve memory and bring great wealth to its wearer.
Emeralds have long been thought to have healing powers, especially for eyesight. It is said that in business, emeralds can be used to promote sales and cash flow. It is also used to attract love by quickening the heart. The emerald is believed to put one in touch with the mind and have positive effects on psychic powers. It is said to increase those powers when used in meditation. Wearing an emerald bracelet on the left wrist is said to protect you when traveling in forests.
Brazil is by far the world's largest producer of emerald, with a wide range of quality. The finest emeralds have traditionally come from Colombia, but Russia's Ural Mountains also have produced top-quality gems. Other sources for the stone include Afghanistan, Australia, Egypt, India, Pakistan, South Africa, United States, Zambia and Zimbabwe. Emeralds belong to the beryl group of stones. They have large, perfect, six-sided crystals with a hardness of 7.0-8.0 on the Mohs Scale.
For thousands of years, ruby has been considered one of the most valuable gemstones on Earth. It is called the “King of Gemstones” and known as the stone of love. The gem is the red variety of the mineral corundum, and while any other color of corundum is denominated as “sapphire,” only red corundum may be called “ruby.” Pure corundum is colorless, but slight traces of elements are responsible for ruby’s purplish bluish-red to orange-red color. In fact, the name “ruby” was derived from the Latin word “rubens,” meaning “red.”
The finest rubies are an intensely saturated pure red with no overtones of brown or blue. They are readily available in sizes up to 2.00ct and have incredible durability, ranking a 9.0 on the Mohs Scale (second only to diamonds in hardness). Rubies may show very different shades of red depending on their origin, and the range of these reds is quite considerable. The gem’s intense color was once thought to come from an undying flame inside the stone, while other legends say each stone is a piece of the planet Mars.
Some rubies distinguish themselves with a wonderful silky shine, called the “silk” of the stone, which is created by fine rutile needles within the gem. The rutile mineral is also involved within very scarce “star” rubies. As can be found in sapphires, there is a translucent variety of ruby that displays a six-point star when cut into a smooth domed cabochon. Rutile is embedded in an asterisk-shape within the ruby, causing a captivating light effect called “asterism.” Six-ray stars appear to magically glide across the surface of the stones as they are moved. Star rubies are expensive rarities and should always display the stars exactly in the center of the gem. The star stone is said to be the home of each person’s angel, who lives there in contentment with the ruby’s spirit.
Rubies are found in many countries throughout the world, each location producing rubies of specific qualities and colors. Gemstone experts agree that the Burmese ruby is the most valuable and luxurious category of the stone. The former country of Burma, now Myanmar, is situated in a mountain valley surrounded by high summits. Rubies that are mined from this “Valley of Rubies” feature an exceptionally vivid red color with a slightly bluish hue. The stones display their unique brilliance in both natural and artificial light.
Rubies from Thailand, another classical supplier of the gem, are often dark red tending towards brown. This “Siam color” is considered almost as beautiful as the Burma color. Rare rubies from Ceylon are mainly light red, like ripe raspberries, while rubies of Vietnamese origin generally display a slightly purplish hue. Rubies are also produced in India, where relatively large ruby crystals have been discovered. These particular rubies, however, have many inclusions, but are excellently suited to be cut as beads or cabochons. Afghanistan, Pakistan and Russia have also produced occasional top-quality rubies, but the rough terrain in these areas has made mining difficult.
Top-quality rubies are quite rare and are often considered even more valuable than colorless diamonds, particularly in sizes above 5.00ct. High prices tend to reflect their tremendous value. In 1988, a 16.00ct ruby sold at auction for $227,301 at Sotheby's in Geneva, Switzerland. A 27.37ct Burmese ruby ring sold for $4 million at Sotheby's in 1995, which was an astounding $146,145 per carat.
It is possible that no other gemstone has been as prized as the ruby. Celebrated in the Bible and in ancient Sanskrit writings as the most precious of all gemstones, rubies have adorned emperors and kings throughout history. Until improvements in chemical testing in the 1800s, most red gem-quality stones were called rubies. Thus, many of the famous “rubies” in the crown jewels of Europe, including Britain’s “Black Ruby” and the “Timur Ruby,” have since been identified as red spinels or garnets. Today, rubies continue to decorate the insignia of many Royal Houses.
In the 13th century, traveler Marco Polo wrote that Kublai Kahn, the Mongol Emperor of China, once offered an entire city for a ruby the size of a man’s finger. In ancient Hindu writings, the ruby represents the sun power. In China, the stone was given as offerings to Buddha.
Rubies were also given as offerings to Krishna in India. For a long time, India was considered the classical country of rubies. Their literature offers a rich and varied knowledge of the stone that was collected and handed down for over two thousand years. In the Sanskrit language, ruby is called “ratnaraj,” which translates as “king of gemstones.” Whenever a spectacular ruby was found, the emperor would send out his notables to welcome the precious gemstone in an appropriate style fit for a king.
In the Middle Ages, it was believed that a ruby could change color and grow darker to warn its owner that danger or illness was near. Thought to ward off misfortune, it was believed to chase away evil spirits and the spirits of the dead. The deep red color of rubies has been used for centuries as protection and to convey invulnerability. Soldiers wore them into battle to guard against wounds and promote healing if they received a wound. The color of blood, the stone is symbolic of courage and bravery. Warriors were said to have implanted rubies under their skin to bring them valor in battle, make them invincible against enemies and ensure victory.
Rubies have also been historically thought to bestow wisdom, wealth and love. In China and Europe during the 10th century, dragons and snakes were carved in the gems’ surfaces to increase the flow of money and power to their owners. A common belief was that dreaming of rubies meant the coming of success in business and money matters. Rubies were also used to capture a mate and light the passion of romance. The gem was believed to have the magical powers of sexual fire and success in love. It has also been said by ancient lore to be capable of reconciling lovers’ quarrels.
When combined with gold and worn on the body, it is said that rubies can cause the body to rejuvenate and absorb energy from the sun to heal all types of body sickness and skin afflictions. It is believed that it should be worn with gold to banish sadness and bring joy.
Given as a symbol of success, devotion and integrity, the ruby is July’s birthstone and the traditional gift for 15th and 40th wedding anniversaries. Rubies have symbolized passion and romance for centuries, so when placed in engagement rings, they express unbridled love and promise of the heart.