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Carat Hunter · Where to buy diamonds

0.75ct · D · SI1 · Cushion · Lab-grown

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

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

Market at this spec

Active listings

182

Retailers carrying

33

Price range

£96 to
£642

Median confirmed price

£213

Certificate mix:IGI 175

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. 4B2C Jewels22 in stock
    United States·Founded 2004·IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 9GemsNY5 in stock
    United States·Founded 1988·IGI·Ships to United Kingdom
    Terms not yet verified
    Visit GemsNY
  10. 10Allurez4 in stock
    United States·Founded 2010·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez
Show 23 more retailers
  8. 18Jared3 in stock
    United States·Founded 1993·IGI
    Terms not yet verified
    Visit Jared
  10. 20Rare Carat3 in stock
    United States·Founded 2016·IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  11. 21Zales3 in stock
    United States·Founded 1924·IGI
    Terms not yet verified
    Visit Zales
  23. 33ZCOVA1 in stock
    Malaysia·Founded 2015·IGI·Ships to United Kingdom
    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 182 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 0.75ct lab grown cushion diamond, all grades

How pricing is spread at this spec

For the 48 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    £96
  • 10th percentile
    £179
  • Median
    £213
  • 75th percentile
    £361
  • 90th percentile
    £585
  • Highest confirmed
    £642

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 £179. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

92 of 182 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

Want None or Faint fluorescence?

178 of 182 are graded None or Faint at this spec.

Shopping from United Kingdom?

21 of the 33 retailers with shipping details ship to United Kingdom. 12 do not.

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.
  • 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 0.75ct D SI1 cushion lab grown diamonds.

Compare MOH London vs Loose Grown Diamond

Related specs

Slightly smaller carat

cushion-0-5ct-d-si1-lab

Slightly larger carat

cushion-1ct-d-si1-lab

One colour grade lower

cushion-0-75ct-e-si1-lab

One clarity grade higher

cushion-0-75ct-d-vs2-lab

One clarity grade lower

cushion-0-75ct-d-si2-lab

Same spec, natural

cushion-0-75ct-d-si1-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 0.75ct D SI1 Cushion Lab Grown Diamonds | Carat Hunter