Skip to ContentSkip to FooterAccessibility Statement
lab created three stone engagement ring with radiant cut

Radiant Lab Diamond Engagement Rings of Various Sizes

Ada Diamonds specializes in large, sensational lab diamonds of the highest quality. Every ring is custom and made to order by award-winning artists in the USA. Our radiant cut lab diamonds are hand-selected for sparkle, brilliance, and impeccable patterning.

Explore custom radiant cut lab diamond engagement rings


1.5 Carat Three Stone Engagement Ring

14k yellow and white gold three stone engagement ring, featuring a 1.5 carat radiant cut lab diamond and trapezoid side stones. See additional design details for this Radiant and Trapezoid Setting.


2 Carat Halo Engagement Ring

Platinum halo engagement ring, featuring a 2 carat radiant cut lab diamond. See additional design details for this Radiant Halo Pave Setting.


2.5 Carat Diamond Band Engagement Ring

Platinum diamond band engagement ring featuring a 2.5 carat radiant cut lab diamond. See additional design details for this Radiant Petite Pave Setting.


3 Carat Diamond Band Engagement Ring

Platinum diamond band engagement ring featuring a 3 carat radiant cut lab diamond. See additional design details for this Radiant Cathedral Pave Setting.


3.5 Carat Solitaire Engagement Ring

Platinum solitaire engagement ring, featuring a 3.5 carat radiant cut lab diamond. See additional design details for this Radiant Cathedral Solitaire.


4 Carat Three Stone Engagement Ring

14k yellow gold three stone engagement ring, featuring a 4 carat radiant cut lab diamond with trapezoid side stones. See additional design details for this Radiant and Trapezoid Setting.


4.5 Carat Diamond Band Engagement Ring

14k yellow gold and platinum diamond band engagement ring, featuring a 4.5 carat radiant cut lab diamond. See additional design details for this Radiant Cathedral Pave Setting.


5 Carat Solitaire Engagement Ring

Platinum solitaire engagement ring, featuring a 5 carat radiant cut lab diamond. See additional design details for this Radiant Petite Four Prong Solitaire.


Ada Diamonds is the Leading Luxury Purveyor of Lab Diamonds

Ada Diamonds specializes in large, sensational diamonds of superlative quality. Our diamonds are cut from the highest purity diamond crystals, have optimal cut and sparkle, and are always eye clean. Much like mined diamonds, lab diamonds are priced based on their quality characteristics. Use the tool below to understand our pricing:

Select Your Carat Weight

ColorlessNear Colorless
DEFGH I
IFPremium
$3,950 to
$4,950		Standard
$2,500 to
$3,150
VVS1
VVS2
VS1
VS2
SIUnexceptional
Not sold by Ada Diamonds
I

Pricing in USD. Subject to availability.

View 2 CARAT Diamond Engagement Rings

This chart shows a range of approximate prices across various size and quality levels and should serve as a rough guideline, not an exact calculator. Lab diamonds are unique SKU’s whose individual prices may be influenced by attributes beyond the 4 C’s. Prices are subject to change.

Ready to create your own custom radiant cut lab diamond engagement ring?


© 2024 Ada Diamonds, Inc. All diamonds offered by Ada Diamonds™ are proudly laboratory-grown and can be referred to as lab created diamonds, grown diamonds, synthetic diamonds, man-made diamonds, cultivated diamonds, or cultured diamonds.