sapphire

Although diamond is our most popular gemstone, this hasn’t always been the case. Only in the last century did diamonds become readily available.…

Step 1: Introduction to Gemology Lesson 24 Back to syllabus The cut is humanity’s contribution to the beauty of gemstones. Color, clarity, and…

As a professional gemologist, you’ll grade and value gems. Occasionally, you’ll come across a stone that may need recutting. However,…

Unlike most online purchases, the quality of a diamond varies from one to the next. Each is unique, which means that shopping for a diamond online…

White diamonds surround this large, 1.17-ct cushion cut fancy pink diamond. “Pink Blush” © Dalby Diamonds. Used with permission.…

3.75-ct emerald-cut fancy yellow diamond with Burmese rubies. © Jogani Beverly Hills. Used with permission. Perhaps the most fantastic…

Blue diamonds are among the rarest – and priciest – gems. Named in honor of the actress Jane Seymour, this 2.08-ct VS1 fancy vivid blue…

The most popular gems in jewelry today are diamonds. Their great brilliance and dispersion (the ability to take white light and display flashes…

“Diamond Macro 3,” 1-ct princess-cut diamond engagement ring, by Stephen Durham. Licensed under CC By 2.0. There appears to be some confusion…