Trapezoid side stone lab-grown engagement ring cost

How much does a trapezoid side stone lab-grown engagement ring cost?

Short answer: at Lavora Diamonds, a trapezoid ring is priced on the solitaire estimate for your center, plus the two trapezoid side stones. A 3 carat emerald cut or radiant lab-grown solitaire (D–E color, VS1+ clarity) in 14K yellow gold is estimated at $2,625–$2,925 complete, and a 3.5ct emerald is $2,925–$3,225 on our ring price estimator. The trapezoid side stones are quoted on your specs.

By Lavora Diamonds, Provo, Utah. Updated November 2026.

Trapezoids are two step-cut side diamonds with four straight edges, wider where they touch the center and narrower toward the band. Send a photo of the look you like, and we model it in 3D so you can check the fit and proportions before anything is made. Our default center is D–E color with VS1+ clarity, quoted on the exact stone you choose. Complete engagement rings have a $2,000 minimum.

What a trapezoid ring costs at Lavora

Build	Price	Source
2.0ct oval or round · D–E/VS1+ · 14K yellow · solitaire	$2,175–$2,425	Ring price estimator
3.0ct emerald · D–E/VS1+ · 14K yellow · solitaire	$2,625–$2,925	Ring price estimator
3.0ct radiant · D–E/VS1+ · 14K yellow · solitaire	$2,625–$2,925	Ring price estimator
3.0ct oval · D–E/VS1+ · 14K yellow · solitaire	$2,625–$2,925	Ring price estimator
3.5ct emerald · D–E/VS1+ · 14K yellow · solitaire	$2,925–$3,225	Ring price estimator
Trapezoid side stones on any solitaire row	Quoted on your specs	Your 3D render
Trapezoids in 18K gold or platinum	Quoted on your specs	Your 3D render

Estimator figures are ranges, not fixed prices. See our ring price estimator and completed ring prices. Your exact price comes with your 3D render.

Center sizes for a trapezoid ring

Measurements below come from IGI-graded lab-grown stones in our supplier feed, October 2026.

Center	Face-up size
2ct emerald	about 8.4–9.1 mm long, 5.8–6.1 mm wide
3ct emerald	about 9.7–10.2 mm long, 6.7–7.0 mm wide
3ct radiant	about 9.9–10.6 mm long, 7.0–7.2 mm wide
3ct round (for comparison)	about 9.1–9.5 mm across

Trapezoids are cut to match the length of your center along its sides. We confirm the exact millimeters on the stone you choose, and you check the side stone size in your 3D render before production.

Buying tips

• Know what you are adding: the solitaire rows above are your base, and the two trapezoids are quoted on top based on their size and matching.
• Pick a center that suits them: trapezoids have straight edges, so they sit cleanly next to an emerald, radiant or asscher center. See 3 carat emerald cut prices and three-stone ring cost.
• Compare side stone styles: half moons have one curved edge and read softer. See half moon ring cost.
• Plan ahead: standard delivery is 4–5 weeks after 3D approval and payment. A rush is $250 for 2–3 weeks.

How a custom ring works at Lavora

1. Text us a photo or idea. We text back a private soft quote, usually in about 12 hours.
2. You see a 3D render first, often within 24–48 hours: $50 refundable, credited to your ring, with unlimited revisions.
3. Delivery takes 4–5 weeks after 3D approval and payment. Need it sooner? Rush 2–3 weeks, $250 (14–21 days).
4. Production begins after 3D approval and payment. Klarna and Affirm financing are available on your invoice.

Adding a wedding band? Bands have a $650 minimum, and you save 10 percent off your total when you buy the ring and band together.

Every lab-grown center is IGI-certified, VS1+ clarity. Engraving is complimentary, US shipping is free and fully insured, and every ring comes with a Lifetime craftsmanship warranty, plus free resizing within the first 60 days. The warranty covers manufacturing defects. Lavora Diamonds is online-only: you design over text and your ring ships to you.

Trapezoid ring questions

How much does a trapezoid side stone lab-grown engagement ring cost?

At Lavora Diamonds, a trapezoid ring is priced on the solitaire estimate for your center, plus the two trapezoid side stones. A 3 carat emerald cut or radiant lab-grown solitaire (D–E color, VS1+ clarity) in 14K yellow gold is estimated at $2,625–$2,925 complete on our ring price estimator, including the IGI-certified center, setting and your custom 3D render. The trapezoids are quoted on your specs above that base.

What is a trapezoid side stone?

A trapezoid is a step-cut side diamond with four straight edges, wider on the side that touches the center stone and narrower toward the band. Two trapezoids frame the center. We model them in your 3D render, usually within 24–48 hours, and you can request revisions before production.

Does a trapezoid ring cost more than a solitaire?

Yes. The two side diamonds add stone cost and labor, so a trapezoid ring is quoted above the plain solitaire rows on our estimator. For comparison, a 3ct D–E/VS1+ emerald cut solitaire in 14K yellow gold is $2,625–$2,925 on our ring price estimator.

What center shape goes best with trapezoid side stones?

Trapezoids are most often paired with emerald, radiant and asscher centers because their straight edges line up with the corners of a rectangular or square stone. They can also flank an oval or cushion. You see the fit in your 3D render before production.

Can a trapezoid ring be made in platinum?

Yes. Platinum and 18K gold are offered and are quoted on your specs; both cost more than the 14K gold in our estimates. We show the metal in your 3D render before production.

How do I pay for a custom trapezoid ring?

Production begins after 3D approval and payment. Klarna and Affirm financing are available on your invoice. Complete engagement rings have a $2,000 minimum.

See also: half moon ring cost · three-stone ring cost · 3 carat emerald cut prices · 3 carat radiant prices · ring price estimator · baguette ring cost

Lavora Diamonds · online custom jeweler based in Provo, Utah · text (385) 592-7180