Large Carat Lab-Grown Diamonds

Diamonds over 10 carats are exceptionally rare, in nature and on the market alike — most large stones are one-of-a-kind pieces held by auction houses or private collectors. Our large carat lab-grown diamonds offer that same scale and presence, each one IGI-certified and priced far below what a natural stone of comparable size would cost.

Every stone here can be set on its own or built into a custom piece designed around it — sourcing and grading standards are set by our founder, a certified gemologist with over two decades in the diamond industry. Looking for something smaller for everyday wear instead? Browse our lab-grown diamond stud earrings.

  • 16.92 Carat Round Lab Grown Diamond

    16.92 Carat Round Lab Grown Diamond

    16.92 Carat Round Lab Grown Diamond VS1 Clarity · H Color · Triple Excellent · CVD Origin The timeless round brilliant — perfected at extraordinary scale....
    $29,610.00
    $29,610.00
  • 18.09 Carat Oval Modified Lab Grown Diamond

    18.09 Carat Oval Modified Lab Grown Diamond

    18.09 Carat Oval Modified Lab Grown Diamond VS1 Clarity · G Color · IGI Certified · CVD Origin A certified masterpiece of brilliance — this 18.09...
    $26,230.50
    $26,230.50
  • 18.55 Carat Oval Modified Lab Grown Diamond

    18.55 Carat Oval Modified Lab Grown Diamond

    18.55 Carat Oval Modified Lab Grown Diamond VVS2 Clarity · G Color · CVD Origin Commanding presence with near-flawless purity — this 18.55 carat Oval Modified...
    $27,361.25
    $27,361.25
  • 18.55 Carat Pear Modified Lab Grown Diamond

    18.55 Carat Pear Modified Lab Grown Diamond

    18.55 Carat Pear Modified Lab Grown Diamond VS1 Clarity · F Color · CVD Origin Graceful and luminous, this 18.55 carat Pear Modified laboratory grown diamond...
    $27,361.25
    $27,361.25

  • 33.09 Carat Heart Lab Grown Diamond

    33.09 Carat Heart Lab Grown Diamond VVS2 Clarity · G Color · Excellent Cut · CVD Origin A magnificent declaration of love — this 33.09 carat...
    $148,950.00
    $148,950.00
  • 38.04 Carat Long Cushion Lab Grown Diamond

    38.04 Carat Long Cushion Lab Grown Diamond

    38.04 Carat Long Cushion Lab Grown Diamond VS1 Clarity · G Color · CVD Origin Presenting a magnificent 38.04 carat Long Cushion laboratory grown diamond —...
    $152,160.00
    $152,160.00
  • 50.07 Carat Heart Lab Grown Diamond

    50.07 Carat Heart Lab Grown Diamond

    50.07 Carat Heart Lab Grown Diamond VS2 Clarity · G Color · Triple Excellent · CVD Origin An iconic 50.07 carat Heart shaped laboratory grown diamond...
    $212,797.50
    $212,797.50
  • 50.20 Carat Oval Modified Lab Grown Diamond

    50.20 Carat Oval Modified Lab Grown Diamond

    50.20 Carat Oval Modified Lab Grown Diamond VS1 Clarity · G Color · CVD Origin A breathtaking 50.20 carat Oval Modified laboratory grown diamond, radiating the...
    $213,350.00
    $213,350.00

FAQ's

Yes. Lab-grown diamonds can be produced at the same scale as the rarest natural stones, and our collection includes certified pieces from 10 carats up to over 50 carats.

A natural diamond of 10+ carats can cost several times more than a lab-grown stone of the same size, color, and clarity, since lab-grown diamonds aren't subject to the same scarcity-driven pricing.

Yes — every stone in this collection can be paired with a custom setting through our custom design service, where you choose the metal, style, and setting built around your stone.

Every large carat diamond we carry is independently certified (IGI or GIA, depending on the stone), with grading details listed on each product page.