Buying Guides

What an IGI Diamond Certificate Tells You
A plain-language guide to what's on an IGI diamond certificate and how to read the main grades. Read more...
Oval vs. Round vs. Radiant vs. Marquise: Choosing a Diamond Shape
Compare four popular engagement ring shapes and see which one suits your style. Read more...
How to Measure Your Ring Size at Home
Simple ways to find a ring size at home, plus a size chart and tips for getting it right before you order. Read more...
Lab-Grown vs. Natural Diamonds: What's the Difference?
Lab-grown and natural diamonds are both real diamonds. Here's what actually differs, and how to choose. Read more...