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Princess Cut Trillion Side Stones Rings

These princess cut ring settings place a triangular trillion side stone on each side of the square center, which you choose in the next step. The side stones are lab-grown diamonds. Choose a classic three stone band or a split shank version, in white, yellow or rose gold, platinum, or Silvadium, a tarnish-resistant sterling silver.

1Choose a setting
Choose a Setting
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2Select a diamond
Select a Diamond
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3Complete the ring
Complete the Ring
Preview & make it yours
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36 rings
36 rings
Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & resizing
Free Shipping
30-day returns
IGI / GIA Certified
Independently graded

Buying guide

Why trillions suit a princess cut

A trillion is a triangular cut. Set with one flat side against a princess cut center, it continues the square's straight lines, so the three stones read as one long, angular shape across the finger. This is a three stone ring: the center plus two lab-grown diamond trillions. The trillions add width and sparkle without competing with the center, and their points draw the eye toward it.

Three stone or split shank

The simpler style sets the three stones on a single band. The split shank style divides the band into two strands as it meets the stones, which opens up the space around them and gives the ring a wider face. Both suit a princess cut diamond ring with trillion side stones, and both hold the center at its four corners, where a princess cut needs protection.

Metal, center and price

Gold comes in 10K, 14K or 18K, and platinum and silver are offered too. The center can be white or a fancy color such as blue, pink, green, yellow or black. The price shown is for the setting only: settings start under $450, and most are about $1,250. 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.