Bloodstone: The Martyr’s Stone

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The alternate birthstone for March is bloodstone, (heliotrope), a dark-green jasper flecked with vivid red spots of iron oxide. Bloodstone dates back through historical and ancient times. The trade name of 'heliotrope' originated from the belief that gemstones were once … [Read more...]

Tanzanite: Stone of Creativity

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Tanzanite is the official birthstone for the month of December, and is a relatively new-comer to the world gemstone stage. Discovered in the late 1960s in Tanzania, and found exclusively in this tiny area of the world, tanzanite exhibits a rich … [Read more...]

Citrine: The Healing Gem

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Along with topaz, citrine is the official birthstone for November. It’s is also the gemstone that celebrates the thirteenth anniversary. It’s perhaps the most popular and frequently purchased yellow gemstone and an attractive alternative for topaz as well as for yellow sapphire. People have used quartz in jewelry for … [Read more...]

Asterism: Star Gemstones

Asterism

Some of the most interesting members of the gem kingdom are those reflecting bright bands of light that form stars. This optical phenomenon is known as "Asterism". The term "Asterism" comes from the Greek word "aster", which means … [Read more...]

The Carmen Lúcia Ruby

The Carmen Lucia Ruby

At 23.10 carats, the Carmen Lúcia Ruby is the largest faceted ruby in the National Gem Collection and one of the finest large, faceted Burmese rubies known. Aside from its large size, this extraordinary gemstone displays a richly saturated homogenous red color, combined with an amazing degree of transparency. … [Read more...]

Ruby: The King of Gemstones

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Ruby is derived from the Latin “ruber,” meaning “red” –the color of passion. In the ancient language of Sanskrit, ruby is called “ratnaraj,” or “king of gems.” Ruby is the most valuable variety of the corundum mineral species, which also includes … [Read more...]

Common Diamond Treatments

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Diamond treatments and how they affect you as a buyer: While shopping for a diamond, you may have come across the terms "diamond treatment" or "treated diamond"  or perhaps something along the lines of "enhanced diamond", but what does that really mean to you … [Read more...]

Chatoyancy: Cat’s Eye Effect

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Chatoyancy is an optical phenomenon in which a band of reflected light, known as a “cat’s eye,” moves just beneath the surface of a dome-shape cut gemstone. The name "chatoyance" originates from the French word "chatoyer," which means … [Read more...]