Find Your Perfect Diamond
Made to sit flush against the engagement ring it was designed for.
Every ring is made from start to finish in our Los Angeles atelier.
Everything our gemologists wish every buyer knew, written plainly and organized so you can find it. Start with your shape, learn the 4Cs, then go as deep as you like. When the reading raises a question, a gemologist is one call away.
Each shape rewards different priorities and punishes different mistakes. These guides cover what defines each cut, what to demand on the certificate, how each shape wears at every carat weight, and an honest word about who it suits. Compare all ten side by side.
The benchmark. Maximum light, the only lab cut grade.
Read the GuideBigger look per carat. Know the bow-tie first.
Read the GuideSoft corners, romantic fire, huge variety.
Read the GuideCrisp square lines with serious sparkle.
Read the GuideLong elegant step cuts. Clarity shows here.
Read the GuideThe square step cut with an Art Deco soul.
Read the GuideDramatic length, points at both ends.
Read the GuideEmerald outline, brilliant fire.
Read the GuideHalf round, half marquise, all presence.
Read the GuideThe hardest shape to cut well.
Read the GuideCut, color, clarity, and carat weight decide what a diamond is worth. They do not all matter equally, and knowing where to spend and where to relax is most of the game.
Cut, color, clarity, and carat in one place. Start here.
Why cut is the C that matters most, and the numbers behind it.
D to Z, what the letters mean and where the smart money sits.
Inclusions, eye cleanliness, and where clarity stops mattering.
Weight is not size. How carats translate to millimeters.
Every color grade, explained one by one
Every clarity grade, explained one by one
The material most jewelers hope you never read: fluorescence, simulants, clarity treatments, and the physics of why one stone dances and another sits dull.
Color changes every rule: rarity, grading, and value work differently once a diamond leaves the D to Z scale.
From choosing a setting style to judging workmanship to understanding the metal it is made in.
Found a diamond you are considering, here or anywhere else? Send the GIA or IGI certificate number and our gemological team returns its ROSI™ Score and a read of where it sits in the current market. Complimentary, within minutes.
Score a DiamondWhere stones of the same exact specifications are trading on the open market right now. You get a straight answer, even when the diamond is not ours.
Sapphire, ruby, emerald, and eight more gems live in our atelier, and they play by different rules than diamonds: color comes first, clarity is judged by type, and cut is judged on glow. The gemstone library covers all of it, gem by gem.
John Anderson, our Lead Gemologist, has spent his career answering exactly the questions these pages raise. Bring him a certificate, a budget, or nothing at all. The consultation is complimentary and there is no obligation.
1-800-779-1726