Emerald

Corundum gems receive more types of treatments than any other stones. Learn how to test rubies and sapphires for signs of these enhancements.

Is an E color diamond a good choice for your engagement ring? Learn why the second-best white diamond color grade might not be worth the cost.

When is a VS clarity diamond the best option for your engagement ring? Learn about diamond clarity grades and how to choose the stone that’s right…

Ruby-glass composites and leaded glass ruby clarity enhancements are difficult for gemologists to detect. Learn how to identify these gems and…

Finding the best diamond color for your budget and style can be a challenge. Learn how to choose a diamond color for a yellow gold engagement ring.…

How will a VS2 clarity diamond look in an engagement ring? Learn if it’s the right stone for you and how to pick the best one within your budget.

Finding the best diamond color for a white gold engagement ring can be tricky. Read our complete guide to finding the best color for your ring and…

Diamonds are popular gemstones surrounded by popular misconceptions. We’ll tell you how they became so prized and debunk some of those diamond…

The AGTA has proposed the use of gemstone treatment codes to promote disclosure and a common language for these procedures. Learn what these codes…