Where to buy a 1.5ct lab-grown oval diamond

Half of these diamonds are listed between $255 and $611 (as of November 6, 2026).

Certificated stones with a recently confirmed price only, 30,099 of them. Each contributes its cheapest confirmed price.

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Ranked by active inventory count. Selection is mechanical, not editorial.

1. 1Carbon Sparkle20,704 in stock

   United States·GCAL, GIA, IGI, SGL·21-day returns·Ships to United States

   Terms read on the retailer’s own site, September 2, 2026

   Visit Carbon Sparkle
2. 2Loose Grown Diamond19,706 in stock

   United States·Founded 2018·GCAL, GIA, IGI·Ships to United States

   Terms not yet verified

   Visit Loose Grown Diamond
3. 3NZ Jewellers19,704 in stock

   New Zealand·Founded 2006·GCAL, GIA, IGI, SGL·30-day returns·Ships to United States

   Terms read on the retailer’s own site, October 19, 2026

   Visit NZ Jewellers
4. 4

   The Perfect Carat

   17,478 in stock

   US·GCAL, GIA, IGI, SGL·Ships to United States

   Terms not yet verified
5. 5Aurelinne17,075 in stock

   United States·Founded 2021·GCAL, GIA, IGI, SGL·Ships to United States

   Terms not yet verified

   Visit Aurelinne
6. 6MOH London15,741 in stock

   United Kingdom·GCAL, GIA, IGI

   Terms not yet verified

   Visit MOH London
7. 7Rare Carat14,864 in stock

   United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to United States

   Terms read on the retailer’s own site, October 19, 2026

   Visit Rare Carat
8. 8Brilliance13,803 in stock

   United States·Founded 2002·GIA, IGI·Ships to United States

   Terms not yet verified

   Visit Brilliance
9. 977 Diamonds13,585 in stock

   United Kingdom·Founded 2005·GCAL, GIA, IGI·Ships to United States

   Terms not yet verified

   Visit 77 Diamonds
10. 10Novita Diamonds12,990 in stock

    Australia·Founded 2019·GIA, IGI

    Terms not yet verified

    Visit Novita Diamonds

Stock counts reflect current listings. Founded and shipping details come from public sources. Return terms are our summary of each retailer's own policy page, dated per retailer above. Retailers change their terms, so check the retailer's own returns and shipping pages before you buy.

55 of the 64 retailers with shipping details ship to United States. 9 do not. 3 retailers have not published any shipping details.

Each combination below has its own page with the retailers that stock exactly that grade.

Current examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

• 1.46ct D VVS2from $219 across 13 retailersAs of November 6, 2026
• 1.53ct D VVS2from $463 across 22 retailersAs of November 5, 2026
• 1.55ct D VVS1from $231 across 14 retailersAs of November 5, 2026
• 1.52ct D VVS1from $227 across 15 retailersAs of November 5, 2026
• 1.49ct D VS1from $223 across 5 retailersAs of November 6, 2026
• 1.47ct D VS1from $214 across 21 retailersAs of November 5, 2026

• Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
• Lab-grown: chemically identical to natural diamonds, typically at least 90% less than a comparable natural cohort from 1 carat up.