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Carat Hunter · Where to buy diamonds

3ct · D · SI1 · Cushion · Natural

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

Updated November 6, 2026 · Independent. Zero affiliate revenue.

Market at this spec

Active listings

690

Retailers carrying

48

Price range

SGD 24,557 to
SGD 122,000

Median confirmed price

SGD 57,022

Certificate mix:GIA 630 · IGI 10

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. 1Yorxs45 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  4. 4Rare Carat30 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  8. 8B2C Jewels25 in stock
    United States·Founded 2004·GIA·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 9Cape Diamonds25 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
  10. 10Allurez21 in stock
    United States·Founded 2010·Ships to Singapore
    Terms not yet verified
    Visit Allurez
Show 38 more retailers
  1. 11Jared21 in stock
    United States·Founded 1993·GIA
    Terms not yet verified
    Visit Jared
  3. 13Zales21 in stock
    United States·Founded 1924·GIA
    Terms not yet verified
    Visit Zales
  4. 14RockHer20 in stock
    United States·Founded 2016·GIA, IGI·Ships to Singapore
    Terms not yet verified
    Visit RockHer
  22. 32

    GemTrove

    7 in stock
    AU·GIA
    Terms not yet verified
  34. 44

    The Perfect Carat

    2 in stock
    US·GIA
    Terms not yet verified
  35. 45ZCOVA2 in stock
    Malaysia·Founded 2015·GIA·Ships to Singapore
    Terms not yet verified
    Visit ZCOVA

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.

Explore all 690 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 3ct natural cushion diamond, all grades

How pricing is spread at this spec

For the 142 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    SGD 24,557
  • 10th percentile
    SGD 39,046
  • Median
    SGD 57,022
  • 75th percentile
    SGD 66,451
  • 90th percentile
    SGD 84,470
  • Highest confirmed
    SGD 122,000

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 39,046. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

133 of 690 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

GIA-graded only?

630 of 690 (91%) carry GIA. 45 retailers stock GIA at this spec.

Want None or Faint fluorescence?

466 of 690 are graded None or Faint at this spec.

Shopping from Singapore?

27 of the 45 retailers with shipping details ship to Singapore. 18 do not. 3 retailers have not published any shipping details.

What this spec means

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • D colour: absolutely colourless, the top grade.
  • SI1 clarity: Slightly Included 1. Inclusions noticeable at 10x. Often still eye-clean depending on placement.
  • Natural: mined diamonds with the certification, provenance and resale profile traditional buyers expect.

Compare the top retailers carrying this spec

Side-by-side facts for the two stores carrying the most 3ct D SI1 cushion natural diamonds.

Compare Yorxs vs 77 Diamonds

Related specs

Slightly smaller carat

cushion-2ct-d-si1-natural

One colour grade lower

cushion-3ct-e-si1-natural

One clarity grade higher

cushion-3ct-d-vs2-natural

One clarity grade lower

cushion-3ct-d-si2-natural

Same spec, lab grown

cushion-3ct-d-si1-lab

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 3ct D SI1 Cushion Natural Diamonds | Carat Hunter