A Promise, Perfected

Trapezoid Side Stones Engagement Rings

This engagement ring with trapezoid side stones is a three-stone setting: a prong head for your center with a lab-grown diamond trapezoid on each side. It takes ten center shapes, including round, oval, emerald, radiant and asscher, and comes in white, yellow or rose gold, platinum, or Silvadium, a tarnish-resistant sterling silver. You choose the center stone in the next step.

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

Buying guide

What trapezoid side stones do

A trapezoid is a step-cut stone with four sides, wider on the edge that meets the center and narrower on the outer edge. Set beside the center, the pair tapers the eye toward it, so the center looks larger and the ring reads as one clean line. Step cuts flash in broad planes instead of sparkling like brilliant cuts, which gives this trapezoid side stone engagement ring a tailored, architectural look.

Matching the center

Straight-edged centers like emerald, asscher, radiant and princess line up neatly with the flat inner edge of each trapezoid. Round, oval and cushion centers soften that geometry for a more classic feel, while pear, marquise and heart give a bolder outline. The center can also be a fancy color, such as pink, yellow, blue or green, for a more personal ring.

Metal and price

  • Gold comes in 10K, 14K or 18K, in white, yellow or rose.
  • Platinum is the densest choice and suits daily wear.
  • Silver gives the lowest price.

The setting starts under $450, and most versions are about $900. That covers the setting with its lab-grown diamond side stones; 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.