Lab Grown Diamond Price Comparison

RINGS.COM RESEARCH & DATA

Rings.com Research

Lab Grown Diamond Price Comparison

Source: the Rings.com Lab-Grown Diamond Price Index. Methodology and monthly benchmark: Lab Grown Diamond Price Per Carat.

Data: July 2026 collection cycle · Captured July 23, 2026 · USD

Median listed prices for lab grown diamonds compared across 6 US retailers, July 2026: 206,316 public listings, round and oval, all colors and clarities pooled, refreshed monthly.

Median price by retailer and carat (July 2026)

Retailer 1 ct median 1.5 ct median 2 ct median
Blue Nile $698 (n=5,513) $1,446 (n=5,814) $2,283 (n=6,676)
Brilliant Earth $1,130 (n=10,536) $2,100 (n=11,807) $3,340 (n=11,634)
Clean Origin $360 (n=8,967) $570 (n=7,900) $900 (n=5,444)
Grown Brilliance $645 (n=80) $1,055 (n=2,335) $1,450 (n=1,664)
Ritani $312 (n=18,196) $429 (n=33,425) $605 (n=27,797)
VRAI † $1,191 (n=34) $930 (n=41) —

"—" means the retailer had fewer than 30 qualifying listings in that carat range this cycle; no figure is published for it. † VRAI grades in-house (no third-party certificates); its figures are context, not directly comparable.

Per-carat detail pages

By shape and carat

Stat definition. Figures on this page pool all qualifying listings in the stated carat range: all colors, clarities, and cut grades, from retailers with at least 30 qualifying listings. The monthly Index benchmark is a different, tighter statistic (E VS1 round Excellent-cut IGI). The two are not comparable and should not be quoted against each other.

Loose stones only. Every figure on this page is for a loose lab grown diamond as listed, before any ring setting. No blended ring-total pricing appears on this page; setting costs vary by retailer and are never merged into these comparisons.

How current are these prices?

Every price on this page was captured from public retailer listings on July 23, 2026 (July 2026 collection cycle) and is accurate as of that date only. Retailers reprice and delist stones continuously, so any listing shown here may have sold, been delisted, or changed price since capture.

  • Blue Nile: last verified in its public listings on July 23, 2026. Re-checked on the index's collection cycle (currently monthly; weekly refresh rolling out).
  • Brilliant Earth: last verified in its public listings on July 23, 2026. Re-checked on the index's collection cycle (currently monthly; weekly refresh rolling out).
  • Clean Origin: last verified in its public listings on July 23, 2026. Re-checked on the index's collection cycle (currently monthly; weekly refresh rolling out).
  • Grown Brilliance: last verified in its public listings on July 23, 2026. Re-checked on the index's collection cycle (currently monthly; weekly refresh rolling out).
  • Ritani: last verified in its public listings on July 23, 2026. Re-checked on the index's collection cycle (currently monthly; weekly refresh rolling out).
  • VRAI: last verified in its public listings on July 23, 2026. Re-checked on the index's collection cycle (currently monthly; weekly refresh rolling out).

About this data

Prices are publicly listed retail prices for loose lab grown diamonds, collected from each retailer's public website on July 23, 2026. No accounts, logins, or paywalls are involved; these are the prices any shopper sees. Rings.com is an independent research publisher, not a jewelry retailer, and publishes this data as an attributed, dated record of public listing prices. Retailer names are used for identification only; Rings.com is not affiliated with any retailer listed.

Get future Rings.com Research in your inbox

New studies and data delivered when they publish. No other emails.

Updated monthly.

Rings.com Lab-Grown Diamond Price Index