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Fine Jewelry University Articles matching: “Light blue stone”

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Fine Jewelry University (Show All FJU Articles)

  1. Early attempts at making lab grown diamonds

    How Are Lab Grown Diamonds Made?

    … making artificial carbon crystal was the problem of lab grown diamonds. For decades, manufacturers of synthetic gemstones tried growing diamonds like they grew rubies, sapphires, and emeralds. It failed. Then they had the idea to grow …, the 4 Cs are used to grade and price lab grown diamonds. The type of inclusions and the shades of color may be slightly different with each kind of lab grown diamond, but the most important thing is the end result. A G color, SI1 clarity…

  2. Three loose garnets red organge and green

    Gem in the Spotlight: Garnet

    … diversity and style. The wide world of garnets invites all to become a garnet fan. Garnet is January’s birth stone. January babies born in the midst of cold, white (valley fog) and at times stark surroundings are rewarded with one of the …. Christian tradition considered the blood-red garnet symbolic of Jesus Christ’s sacrifice. Legend tells that garnet lights up the night. Noah used a garnet lantern to navigate the Ark at night. The ancient world is full of praise for the …

  3. Group of loose amethyst gems emerald cut trillion and oval

    Gem in the Spotlight: Amethyst

    … hard as tourmaline, softer than sapphire and topaz, and harder than opal and tanzanite. This makes it a durable gemstone that is resistant to scratching and chipping. It is also resistant to heat and chemicals which means that it can …tears of wine in remorse for his actions. These tears stained the quartz purple, resulting in the creation of the gemstone known as amethyst. Amethyst has a long history of being used in jewelry and other decorative items. It was highly …

  4. Tsavorite garnet is a rare and beautiful green gem

    Gem in the Spotlight: Tsavorite Garnet

    … lively with a high refractive index giving it excellent sparkle and scintillation. Tsavorite is also a very rare gemstone. It is uncommon to find Tsavorite in sizes larger than five carats, and most faceted stones are below two carats. By… doesn’t exactly roll off the tongue. So, a proper name was definitely in order. The nomenclature of gemstones follows certain rules, and according to modern mineralogical methods, gemstones are given a name which ends in “-ite”. In honor …

  5. Lab grown synthetic diamond Type IIa tester with diamond

    How to Tell If a Diamond Is Natural or Lab Grown

    … have imaginative names like DiamondCheck, DiamondSure, and DiamondView. Roughly speaking, these machines work like our DiaTrue. They bombard a diamond with specific types of radiation (nothing harmful to humans) and analyze what the stone outputs. There are certain, tell-tale signs of the various processes used to make lab grown diamonds that show up as spikes and troughs at specific wavelengths in the spectroscopic analysis. With CVD diamonds, the DiamondView machine …

  6. Collection of many different styles of jewelry clasps laid out together

    Types of Jewelry Clasps

    … and bracelets. The hook-and-eye clasp was also used by the Greeks and Romans who often embellished them with gemstones and intricate designs. In the 19th century, the development of new metalworking techniques and machinery led to the …rings) because of their size and shape. CONS Size and Bulk – Lobster clasps can be a little bulky and heavy for thin light weight chains and can be a little more expensive than alternatives. Ease of Use – Yes, this is also listed as a “Pro…