Journal

GIA fancy yellow pear diamond halo ring, 1.00 ct
Natural Fancy Yellow Diamonds: A Buyer's Guide
Fancy yellow diamonds are graded on colour rather than the D-to-Z scale. Here is how the grades work and what makes a yellow diamond look its best. Read more...
Ceylon sapphire three-stone ring, 6.31 ct, in 18K white gold
How to Read a Gemstone Lab Report
An independent laboratory report is the most reliable record of what a gemstone is. Here is what each section means and how to check one. Read more...
Unheated Siam ruby halo ring in 18K two-tone gold
Heated vs Unheated Rubies and Sapphires: What the Difference Means
Most rubies and sapphires on the market have been heated. Here is what that means, how a laboratory tells the difference, and why it matters to value. Read more...