VOGA Collection 18K Gold Electroform 18x13mm Gemstone Ring

In order to determine the karat weight of a specific item, simply look for the quality mark. Jewelry items will bear the stamp of their karatage based upon the United States or European system of marking. The United States system designates pieces by their karats—24K, 18K, 14K, 10K, etc. The European system designates pieces by their percentage of gold content. For instance, 10K gold is marked “417,” denoting 41.7% gold; 14K is marked “585,” denoting 58.5% gold; and 18K is marked “750,” denoting 75% gold; etc.

Yellow Gold
By far the most common color of gold used in jewelry, yellow gold is gold in its natural shade. Yellow gold is usually alloyed with copper and silver to increase the strength of the metal. How yellow the metal is depends upon the content of gold. A 14-karat piece of jewelry will have a brighter yellow hue than a 10-karat piece. Likewise, an 18-karat piece of jewelry will have a deeper yellow than 14-karat gold, and so on.

>Chalcedony
Quartz that is formed not of one single crystal, but of finely grained microcrystals, is known as chalcedony. With a waxy, dull luster, the variety of chalcedony is even greater than transparent quartz varieties because it includes patterns and a wide range of solid colors. Chalcedony is a catchall term that includes many well-known varieties of quartz gemstones. Some kinds are so widespread in occurrence that they have been given individual names, including agate, carnelian, chrysoprase, bloodstone, onyx, flint, jasper and tiger’s eye. Occurring in every imaginable color, chalcedony has a hardness of 7.0 on the Mohs Scale. It is most prominently found in Namibia, Brazil, Turkey, Uruquay, India, Madagascar and the United States.

Because of its abundance, durability and beauty, chalcedony was one of the earliest raw materials used by humankind. The earliest recorded use of chalcedony was for projectile points, knives, weapons, tools and containers such as cups and bowls. The move from using items as weapons and tools to using the same items for ceremonial and personal adornment is very easily made. It was only natural for early humans to use their finest-looking knives for special occasions or to attach a special lance point or arrowhead to their tunics. In fact, chalcedony may have simply been elevated to gems from common and functional weapons or tools.

The term chalcedony is derived from the Greek word meaning “Chalkedon,” a town in Asia Minor. Legend has ascribed to it such powers as prevention and curing of melancholy and driving away evil spirits. It is said to stimulate maternal feelings and creativity. Chalcedony is also one of the stones listed as in the foundation of the Heavenly City, in Revelations of the Bible.

Tiger's Eye:
Tiger’s eye received its name because it has rich yellow and golden brown bands resembling an eye of a tiger. The stone is a common form of brown quartz that has parallel stripes and lustrous colors. It comes in various, luminous shades of light or dark brown due to iron oxides. Tiger’s eye has the property of chatoyancy, meaning that when cut into a cabochon, it can shine with only a small ray of light on its surface, much like the eyes of a cat.

Also called crocidolite cat’s-eye or African cat’s-eye, the gem has a hardness of 7.0 on the Mohs Scale. Its most important deposit is in South Africa, though it is also found in western Australia, Myanmar (formerly Burma), India and California. Tiger’s eye has recently become a modern anniversary gemstone for the 9 th year of marriage.

Roman soldiers wore tiger’s eye for protection in battle and the stone is said to enhance courage and bring physical strength. Tiger’s eye is also believed to offer protection during travel and dispel negative energies. The gem is said to strengthen confidence, willpower and convictions, which in turn help people to accomplish goals, increase wealth and achieve a joyful outlook. Tiger’s eye is thought to help people recognize their inner power, leading them to attain their dreams and bring passion and vitality to their lives.

Perhaps tiger’s eye’s greatest folklore is that it is believed to promote mental clarity and balance. The gem is said to focus the mind and teach people to see with the eye of the tiger, clearly and without illusion. It is believed that tiger’s eye’s soothing vibrations can generate a calming effect that diminishes unclear thinking. The stone’s subtle energies are thought to bring order, stability and discipline to life. Tiger’s eye is closely attuned to Earth energies, but its yellow highlights are linked to the sun. Because it is believed to be a bridge between Earth and sky, it is considered a tool for balance between the physical and the spiritual. As a link between Father Sky and Mother Earth, the stone’s influence is thought to be one of harmony between yin and yang.

Spinel:
The great imposter of gemstone history, many famous rubies have been found to actually be 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. While a rich red is the most common color, spinel 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 main obstacle holding back greater recognition for spinel is rarity. Fine spinels are now more rare than the rubies they used to imitate. Strangely, however, they are also more affordable, since too rare can be a drawback because such few people have the opportunity to grow to love them. 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.