Diamond gemstoneJewelry design concept: pear-cut diamond ring with a fine pavé band in platinum

Buyer's guide

Diamond

Few things are judged as closely as diamonds. Small shifts in color, cut and clarity make a big difference in value.

Design with diamond

April Birthstone

Aries · Taurus

Rough Diamond specimen

Before the cut

From rough stone to custom jewelry

Every diamond begins as a rough crystal deep in the earth. We help you choose the cut stone, then design the ring around it. Tell us if you found your diamond and we will start your design.

What to look for

Graded D to Z against masterstones. Closer to D means more colorless.

Based on the inclusions and blemishes seen under 10x magnification.

Proportions, symmetry and polish decide the brightness, fire and sparkle.

One carat is 0.20 grams. Only one in 1,000 diamonds weighs more than a carat.

Explore another stone