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Gem in the Spotlight: Quartz

FJU Category: Gemstones | Tags: Amethyst, Citrine, Gem Spotlight, Gemology, Onyx, Prasiolite, Quartz

…November babies and Citrine. You may be less familiar with some of the other single crystal varieties of quartz like Rose Quartz, Morion, and Rutilated Quartz. These less common gems can be stunningly beautiful and intricate. You can also see …orange to brown, greenish yellow Prasiolite Green (often mistakenly referred to as Green Amethyst) Rock Quartz Clear Rose Quartz Various shades of pink, typically has a smooth, milky or hazy appearance Smoky Quartz Transparent brown Morion Dark-…

Gem in the Spotlight: Amethyst

FJU Category: Gemstones | Tags: Amethyst, Folklore, Gem Spotlight, Gemology, Jewelry History

Amethyst is known for its beautiful purple color, and it is the most important quartz variety used in jewelry. Purple has long been considered a royal color, so it is not surprising that amethyst has … which means that it can withstand daily wear and tear. Amethyst has the same refractive index as other varieties of quartz at 1.54-1.55 and is doubly refractive. It has a vitreous polish luster and its specific gravity is 2.66. Its …tribute to the goddess Diana. In order to protect Amethyst, Diana turned her into a statue made of pure, crystalline quartz. Dionysus, upon seeing the stunning statue, wept tears of wine in remorse for his actions. These tears stained the …

The History of Diamond Cuts

FJU Category: Diamonds | Tags: Diamond Information, Gemology, Jewelry History, Old European Diamond

… the brilliance within the diamond, and variations of it are still used today. Another early diamond cut is the rose cut or rosette cut. The rose cut looks like half a diamond to modern eyes. It has anywhere from 3 to 24 facets coming to …a pavilion. Interesting fact #2: Some diamond cuts do not have a standard number of facets. As we have just seen the rose cut has many variations. A 3 facet rose cut looks a lot different than a 24 facet rose cut. Some cuts can vary by …

FJU Category: Gemstones | Tags: Birthstones, Folklore, Gemology

…. Learn more about Garnet and Tasvorite Garnet February’s Birthstone: Amethyst Amethyst, transparent purple quartz, is the most important quartz variety used in jewelry. Purple has long been considered a royal color so it is not surprising …. According to legend, this golden stone possesses the power to cure many diseases. Citrine, a transparent yellow quartz gem many of the best of which come from Brazil, is a current day birthstone for this month. Learn more about Topaz and …

FJU Category: Gemstones | Tags: Gemology, Moissanite, Synthetic Gemstones

… made silicon carbide. In gemology, any material used to look like a gem is called a simulant. So clear glass, rock quartz, GGG, and Moissanite are all diamond simulants. They look like diamonds, but they are not diamonds. These simulants … millions of dollars worth of equipment and world class personnel. Synthetic diamonds on the high end and synthetic quartz on the low end are both very difficult to positively identify as synthetic. Both, I feel, are impossible to identify …

Alternative Metals for Men’s Jewelry

FJU Category: Jewelry Metals | Tags: Alternative Metals, Black Band, Non-Traditional

…. As a frame of reference, cobalt rings come in around 7-8 on the Mohs hardness scale which is about the same as quartz or topaz but softer than tungsten or sapphire. Like most alternative metals, cobalt chrome bands are hypoallergenic and … for low grade pieces with more nickel Cobalt Looks like white gold or platinum, hypoallergenic Cut in 2 places 7-8, quartz or topaz Scratches more easily than others Carbon Fiber Light weight, modern look Cut NA Can feel “too light” …