jewelry

Gem pricing isn’t easy, and guidelines aren’t always fixed. Learn what factors gem cutters should consider to determine a fair price for their…

Some gems show pleochroism, two or three different colors depending on the viewing angle. Learn why this occurs and how it helps gemologists identify…

Thinking about a tourmaline engagement ring? Learn everything you need to know to buy your perfect gem, from hardness and durability to color.…

What’s the difference between synthetic, simulated, and created gemstones? Learn the definitions (and gray areas) of these commonly used terms.…

Based on interviews with gem trade experts, this series of FAQs addresses many topics, such as gem value, investing, insurance, and collecting.…

Almost all cut emeralds have had clarity enhancements. Learn how these emerald enhancements work, what substances are used, and how to detect…

Gem stress can cause stones to break during faceting. Learn what techniques may reduce the odds of fracturing and how to spot problem rough before…

Gemstone radiation is a common but little understood technique for altering colors. Learn how it works and what gems usually receive this treatment.…

This sunstone has a very nice reddish pink-orange color. It also has a flaw on one side, a moderate amount of copper schiller and a chip out in one of…