Where to buy a 1.25ct lab-grown oval diamond

Half of these diamonds are listed between NZ$449 and NZ$1,431 (as of November 7, 2026).

Certificated stones with a recently confirmed price only, 5,775 of them. Each contributes its cheapest confirmed price.

As of November 7, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 21% 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. 1Rare Carat4,501 in stock

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

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

   Visit Rare Carat
2. 2Carbon Sparkle4,173 in stock

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

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

   Visit Carbon Sparkle
3. 3NZ Jewellers3,948 in stock

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

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

   Visit NZ Jewellers
4. 4

   The Perfect Carat

   3,555 in stock

   US·GCAL, GIA, IGI, SGL

   Terms not yet verified
5. 5Aurelinne3,485 in stock

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

   Terms not yet verified

   Visit Aurelinne
6. 6Loose Grown Diamond3,395 in stock

   United States·Founded 2018·GCAL, GIA, IGI

   Terms not yet verified

   Visit Loose Grown Diamond
7. 7MOH London3,107 in stock

   United Kingdom·GCAL, GIA, IGI

   Terms not yet verified

   Visit MOH London
8. 8Brilliant Earth2,786 in stock

   United States·Founded 2005·GCAL, GIA, IGI

   Terms not yet verified

   Visit Brilliant Earth
9. 9Adiamor2,537 in stock

   United States·Founded 1999·GCAL, GIA, IGI

   Terms not yet verified

   Visit Adiamor
10. 10Taylor and Hart2,421 in stock

    United Kingdom·Founded 2013·GCAL, GIA, IGI·Ships to New Zealand

    Terms not yet verified

    Visit Taylor and Hart

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.

33 of the 57 retailers with shipping details ship to New Zealand. 24 do not. 17 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.

• 1.24ct D VVS2from $282 across 14 retailersAs of November 5, 2026
• 1.27ct D VVS2from $190 across 20 retailersAs of November 5, 2026
• 1.27ct D VS1from $192 across 5 retailersAs of November 1, 2026
• 1.23ct D VS1from $230 across 17 retailersAs of November 6, 2026
• 1.3ct D VVS1from $335 across 5 retailersAs of November 5, 2026
• 1.29ct D VVS1from $316 across 18 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.