A Promise, Perfected

Cushion Cut Three Stone Engagement Rings

A 3 stone cushion cut engagement ring sets a cushion center between two side stones. These settings hold a center you choose in the next step, with lab-grown diamond side stones and accents. Choose classic round sides, pear, baguette or trillion side stones, and white, yellow or rose gold, platinum, or Silvadium, a tarnish-resistant sterling silver.

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

Choosing the side stones

The side stones shape the whole look of a trilogy ring. Round side stones keep it classic and balanced. Pear side stones curve toward the center and lengthen the ring on the finger. Baguette and trillion side stones give a sharper, more geometric outline, and a few designs use marquise or trapezoid sides. Most designs set lab-grown diamonds along the sides, and some add pave on the band.

Other details to consider

Beyond the classic three stone shape, some settings add a halo around the center, a split shank, milgrain edges or vintage filigree and engraving. A few use a bezel, a bypass band or a twisted band. Most settings can be made for a fancy blue, pink, green or yellow center, and many for a black center. Most bands are about 1.8 to 2.5 mm wide.

Metal and price

Gold comes in 10K, 14K or 18K. White gold and platinum keep a white center looking bright, while yellow and rose gold give a warmer, softer look that suits the cushion's vintage feel. Settings start under $250, and most are between about $925 and $1,350. That price is for the setting; the center is priced when you choose it.

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.