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Carat Hunter · Where to buy diamonds

3ct · E · 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

602

Retailers carrying

52

Price range

A$29,225 to
A$125,260

Median confirmed price

A$62,349

Certificate mix:GIA 532 · HRD 3

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.

  4. 4Rare Carat32 in stock
    United States·Founded 2016·GIA·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6Yorxs28 in stock
    Germany·Founded 2011·GIA, HRD
    Terms not yet verified
    Visit Yorxs
  7. 7B2C Jewels24 in stock
    United States·Founded 2004·GIA·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 9Jared19 in stock
    United States·Founded 1993·GIA
    Terms not yet verified
    Visit Jared
Show 42 more retailers
  1. 11Zales19 in stock
    United States·Founded 1924·GIA
    Terms not yet verified
    Visit Zales
  3. 13Allurez17 in stock
    United States·Founded 2010·Ships to Australia
    Terms not yet verified
    Visit Allurez
  8. 18Cape Diamonds15 in stock
    South Africa·Founded 2005·GIA·7-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  9. 19RockHer13 in stock
    United States·Founded 2016·GIA·Ships to Australia
    Terms not yet verified
    Visit RockHer
  24. 34

    GemTrove

    6 in stock
    AU·GIA·Ships to Australia
    Terms not yet verified
  31. 41

    The Perfect Carat

    3 in stock
    US·GIA
    Terms not yet verified
  33. 43ZCOVA2 in stock
    Malaysia·Founded 2015·GIA·Ships to Australia
    Terms not yet verified
    Visit ZCOVA
  39. 49GemsNY1 in stock
    United States·Founded 1988·GIA·Ships to Australia
    Terms not yet verified
    Visit GemsNY

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 602 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 153 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    A$29,225
  • 10th percentile
    A$37,869
  • Median
    A$62,349
  • 75th percentile
    A$75,269
  • 90th percentile
    A$89,796
  • Highest confirmed
    A$125,260

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 A$37,869. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

177 of 602 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

GIA-graded only?

532 of 602 (88%) carry GIA. 49 retailers stock GIA at this spec.

Want None or Faint fluorescence?

505 of 602 are graded None or Faint at this spec.

Shopping from Australia?

32 of the 50 retailers with shipping details ship to Australia. 18 do not. 2 retailers have not published any shipping details.

What this spec means

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • E colour: colourless, indistinguishable from D to most viewers.
  • 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 E SI1 cushion natural diamonds.

Compare 77 Diamonds vs Blue Nile

Related specs

Slightly smaller carat

cushion-2ct-e-si1-natural

One colour grade higher

cushion-3ct-d-si1-natural

One colour grade lower

cushion-3ct-f-si1-natural

One clarity grade higher

cushion-3ct-e-vs2-natural

One clarity grade lower

cushion-3ct-e-si2-natural

Same spec, lab grown

cushion-3ct-e-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 E SI1 Cushion Natural Diamonds | Carat Hunter