A Promise, Perfected

2 Carat Platinum Solitaire Rings

A 2 carat lab-grown diamond solitaire, set in platinum and priced with the center included. Every design comes in ten center shapes: round, oval, princess, cushion, emerald, radiant, Asscher, pear, marquise and heart. Choose a thin plain band, a rounded plain band, a pavé band, a hidden halo, or a cathedral setting on a graduated pavé band.

1Choose a setting
Choose a Setting
Browse signature ring designs
2Select a diamond
Select a Diamond
Filter by shape, carat & budget
3Complete the ring
Complete the Ring
Preview & make it yours
Find Your Cut

Shop by Shape

4 rings
4 rings
Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & resizing
Free Shipping
30-day returns
IGI / GIA Certified
Independently graded

Buying guide

What makes a solitaire

A solitaire puts one center stone at the top of the ring, with nothing framing it from above. At 2 carats the center carries the whole look, so the shape you choose matters most. Round and cushion give the most sparkle, oval, pear and marquise look longer and larger on the finger, and emerald and Asscher cuts show clean step-cut flashes.

Plain band or added sparkle

A plain band keeps the eye on the center and leaves room for any wedding band later. Pavé bands set small lab-grown diamonds along the shank. The hidden halo version keeps the solitaire look from above but adds a row of lab-grown diamonds under the center that shows from the side. The cathedral design lifts the center on arches that rise from a graduated pavé band.

Why platinum suits a 2 carat lab-grown diamond solitaire

Platinum is naturally white, so it never needs replating to stay bright. It is dense and wears slowly, and when it scratches the metal moves instead of wearing away. That makes it a sound choice for the prongs that hold a single large center for decades of daily wear.

Made to order

Each ring is made for you in 10–15 days. Shipping is free on orders over $500, returns are accepted within 30 days, and one resize is free within 60 days of delivery.