Brilliance, kept between us.

Certified lab-grown diamonds, each one graded by an independent lab and verifiable by its report number. Chosen quietly. Priced honestly.

Browse diamondsShop by shape

  • Independently certified

    Every stone in our certified collection has been graded by an independent lab, most by IGI, and the report number is on the page. Look it up on the lab's own site before you buy.

  • See the stone itself

    We don't use stock photography. Most stones have a 360° video of the actual diamond, so you can judge sparkle, color and clarity for yourself.

  • Chemically diamond

    Lab-grown diamonds are real diamonds: the same crystallized carbon, the same hardness and the same fire as a mined diamond. The only difference is where they were formed.

Find your shape

  • Round lab-grown diamonds

    Round

    The round brilliant is cut to return as much light as a...

    Round

  • Oval lab-grown diamonds

    Oval

    An oval carries brilliant-style sparkle in a longer outline that can look...

    Oval

  • Emerald lab-grown diamonds

    Emerald

    Long, clean step facets and a wide open table: the emerald cut...

    Emerald

  • Radiant lab-grown diamonds

    Radiant

    The radiant pairs the clean, cropped-corner outline of an emerald with brilliant...

    Radiant

  • Cushion lab-grown diamonds

    Cushion

    Rounded corners and softly curved sides give the cushion a romantic, pillowed...

    Cushion

  • Pear lab-grown diamonds

    Pear

    Part round, part marquise, the pear tapers to a single point. Worn...

    Pear

  • Marquise lab-grown diamonds

    Marquise

    Long, narrow and pointed at both ends, the marquise shows one of...

    Marquise

  • Heart lab-grown diamonds

    Heart

    The most sentimental shape is also one of the most technical to...

    Heart

  • Princess lab-grown diamonds

    Princess

    Square, sharp-cornered and brilliantly faceted, the princess is modern and architectural. Its...

    Princess

  • Asscher lab-grown diamonds

    Asscher

    A square step cut with cropped corners and a deep, hall-of-mirrors pattern....

    Asscher

  • Fancy Color lab-grown diamonds

    Fancy Color

    Blue, pink, yellow, green and orange lab-grown diamonds, each graded by an...

    Fancy Color

  • Specialty Shapes lab-grown diamonds

    Specialty Shapes

    Hexagons, kites, half moons, rose cuts, old European rounds and other shapes...

    Specialty Shapes

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Round diamonds

The round brilliant is cut to return as much light as a diamond can, which is why it remains the classic. For rounds the lab gives an overall cut grade; look for Ideal or Excellent, then choose color and clarity to taste. Every stone here is graded and verifiable by report number.

Guides: Lab-grown diamond size chart (carat to mm) · IGI certification explained · GIA vs IGI reports · How to read an IGI report · The 4Cs for lab-grown diamonds · Choosing stud earring diamonds · Eye-clean color & clarity · Lab-grown diamond vs moissanite vs CZ · All diamond guides

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Know what you're buying

Carat, color, clarity and cut. Here is what each one means and how much it matters.

Read the guide