A Promise, Perfected

6 Carat Platinum Rings

Each platinum ring here comes with a 6 carat lab-grown diamond center already set, and the price includes it. Pick from round, oval, cushion, princess, emerald, radiant, Asscher, pear, marquise and heart shapes, then a plain or pave solitaire, a hidden halo, a halo, a cathedral, a three stone ring or a design with side accents.

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

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

Buying guide

Platinum and a 6 carat center

Platinum is a dense, naturally white metal, so it never needs replating. Its weight and strength make it a secure home for a large stone, and prongs hold firm with wear. The surface softens to a satin patina over time, which some people like and a polish can remove. Platinum is also gentle on sensitive skin, which matters for a ring worn every day.

Choosing a style

Solitaires on a thin or rounded plain band are the simplest choice. Pave solitaires add small lab-grown diamonds along the band, and the hidden halo adds a row of them under the center. The cathedral lifts the center on arches over a graduated pave band. A halo design with a three-row pave band and filigree details has a vintage look. The three stone ring and the side accent designs, with marquise and round or pear and round stones, give the widest look. Those accents are extra stones beyond the 6 carat center.

Shape

All ten shapes are offered on every design. Round and radiant give the most sparkle, oval, pear and marquise look longer on the finger, and emerald and Asscher cuts show bold step facets that suit the clean white of platinum.

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.

6 Carat Platinum Rings FAQs

How much do 6 carat platinum rings cost?

Our 6 carat platinum rings start from about $4,950, and most cost between about $5,500 and $6,200. That price includes the 6 carat lab-grown diamond center as well as the platinum setting. Plain solitaires sit at the lower end, while halo, three stone and side accent designs use more metal and small stones and cost more.