Large rough diamond testing

What is a Raw Diamond? - Estate Diamond Jewelry

Everything You Need To Know About Rare Green Diamonds

The Diamond Loupe

All About the Rough--Can you tell the difference? - Gem Related Discussion - IGS Forums

2017 global natural diamond production forecasted at 142M carats worth $15.6B

1,381 Uncut Diamond Stock Photos - Free & Royalty-Free Stock Photos from Dreamstime

What does a rough diamond look like? - Quora

Famous Diamonds Cape Town Diamond Museum

Two Large Rough Diamonds Found in Lesotho

Where to find diamonds, How to identify rough diamonds and how to recover raw diamond crystals

Lesotho Mine Yields 108-Carat Pink Diamond

Rough Diamonds – Rough Diamond World

Diamond - Encyclopedia

Very Large Rough Diamond

All About the Rough--Can you tell the difference? - Gem Related Discussion - IGS Forums