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Carat Hunter · Where to buy diamonds

1.25ct · D · IF · Cushion · Lab-grown

Every retailer carrying this exact spec, from our latest listings.

Updated October 29, 2026 · Independent. Zero affiliate revenue.

Market at this spec

Active listings

458

Retailers carrying

39

Price range

SGD 401 to
SGD 4,192

Median confirmed price

SGD 1,172

Certificate mix:IGI 334 · GIA 109 · GCAL 15

Range and median take each diamond at this spec at its cheapest recently confirmed price. They are cohort statistics, not per-retailer pricing claims.

Every retailer that stocks this spec

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

  1. 1Moon Ocean31 in stock
    United Kingdom·Founded 2022·GIA, IGI·30-day returns·Ships to Singapore
    Terms not yet verified
    Visit Moon Ocean
  2. 2Rare Carat29 in stock
    United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6Cape Diamonds20 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to Singapore
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  7. 7Adiamor20 in stock
    United States·Founded 1999·GCAL, GIA, IGI·30-day returns
    Terms not yet verified
    Visit Adiamor
  9. 9B2C Jewels19 in stock
    United States·Founded 2004·GIA, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 15 more retailers
  1. 11RockHer17 in stock
    United States·Founded 2016·GIA, IGI·40-day returns·Ships to Singapore
    Terms not yet verified
    Visit RockHer
  4. 14Yorxs15 in stock
    Germany·Founded 2011·GIA, IGI·100-day returns
    Terms not yet verified
    Visit Yorxs

Stock counts are updated daily. 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.

Explore all 458 stones in this cohort

Stones at this spec now

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

See every 1.25ct lab grown cushion diamond, all grades

How pricing is spread at this spec

For the 91 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    SGD 401
  • 10th percentile
    SGD 573
  • Median
    SGD 1,172
  • 75th percentile
    SGD 3,045
  • 90th percentile
    SGD 3,757
  • Highest confirmed
    SGD 4,192

The 10.4x spread from the lowest to the highest confirmed price is normal for cohorts at this spec. Differences reflect cert lab, cut quality, brand premium and inclusions visibility.

Cohort distribution only. No retailer named adjacent to a dollar figure in this section.

How to pick

Lowest price floor for the spec?

The cheapest confirmed prices start around SGD 573. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

225 of 458 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

GIA-graded only?

109 of 458 (24%) carry GIA. 21 retailers stock GIA at this spec.

Want None or Faint fluorescence?

454 of 458 are graded None or Faint at this spec.

Shopping from Singapore?

14 of the 25 retailers ship to Singapore. 11 do not.

What this spec means

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • D colour: absolutely colourless, the top grade.
  • IF clarity: internally flawless, with no internal imperfections and surface marks only.
  • Lab-grown: chemically identical to natural diamonds, typically at least 90% less than a comparable natural cohort from 1 carat up.

Compare the top retailers carrying this spec

Side-by-side facts for the two stores carrying the most 1.25ct D IF cushion lab grown diamonds.

Compare Moon Ocean vs Rare Carat

Related specs

Slightly smaller carat

cushion-1ct-d-if-lab

Slightly larger carat

cushion-1-5ct-d-if-lab

One colour grade lower

cushion-1-25ct-e-if-lab

One clarity grade higher

cushion-1-25ct-d-fl-lab

One clarity grade lower

cushion-1-25ct-d-vvs1-lab

Same spec, natural

cushion-1-25ct-d-if-natural

Frequently asked

Does Carat Hunter earn commission from these retailers?

No. We earn zero affiliate revenue from any retailer in our index.

How fresh is this data?

Listings refresh as we re-read each retailer, most of them every day. Static facts about each retailer refresh weekly.

Why is one retailer cheaper for the same certificate?

Markup and overhead vary by retailer. The same physical diamond can list at very different prices across stores. See our cross-retailer analysis for the structural reasons.

How is the retailer ranking calculated?

Strictly by active inventory count for this exact spec. The retailer carrying the most stones at the spec ranks first. There is no editorial input, weighting or affiliate consideration.

Why do you not show per-retailer prices on this page?

Prices vary per stone, not per store. Click through to any matched diamond and you will see every retailer's price on the exact same physical stone, which is the meaningful comparison.

Where to Buy 1.25ct D IF Cushion Lab Grown Diamonds | Carat Hunter