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Carat Hunter · Where to buy diamonds

1ct · D · SI1 · Oval · 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

7,429

Retailers carrying

64

Price range

SGD 1,919 to
SGD 11,304

Median confirmed price

SGD 4,228

Certificate mix:GIA 6,669 · HRD 301 · IGI 57

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. 1NZ Jewellers651 in stock
    New Zealand·Founded 2006·GIA, HRD, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  3. 3

    The Perfect Carat

    391 in stock
    US·GIA, HRD, IGI
    Terms not yet verified
  4. 4Aurelinne388 in stock
    United States·Founded 2021·GIA, HRD, IGI·Ships to Singapore
    Terms not yet verified
    Visit Aurelinne
  5. 5Rare Carat359 in stock
    United States·Founded 2016·GIA, HRD, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  9. 9Yorxs215 in stock
    Germany·Founded 2011·GIA, HRD, IGI
    Terms not yet verified
    Visit Yorxs
Show 54 more retailers
  3. 13RockHer191 in stock
    United States·Founded 2016·GIA, IGI·Ships to Singapore
    Terms not yet verified
    Visit RockHer
  6. 16Allurez187 in stock
    United States·Founded 2010·Ships to Singapore
    Terms not yet verified
    Visit Allurez
  8. 18Cape Diamonds162 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. 20B2C Jewels146 in stock
    United States·Founded 2004·GIA, HRD, IGI·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  19. 29

    GemTrove

    75 in stock
    AU·GIA, IGI
    Terms not yet verified
  22. 32Jared67 in stock
    United States·Founded 1993·GIA
    Terms not yet verified
    Visit Jared
  24. 34Zales67 in stock
    United States·Founded 1924·GIA
    Terms not yet verified
    Visit Zales
  35. 45ZCOVA33 in stock
    Malaysia·Founded 2015·GIA·Ships to Singapore
    Terms not yet verified
    Visit ZCOVA
  44. 54GemsNY8 in stock
    United States·Founded 1988·GIA·Ships to Singapore
    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 7,429 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 1ct natural oval diamond, all grades

How pricing is spread at this spec

For the 1,380 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    SGD 1,919
  • 10th percentile
    SGD 3,002
  • Median
    SGD 4,228
  • 75th percentile
    SGD 5,920
  • 90th percentile
    SGD 7,401
  • Highest confirmed
    SGD 11,304

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 3,002. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

1,341 of 7,429 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

GIA-graded only?

6,669 of 7,429 (90%) carry GIA. 62 retailers stock GIA at this spec.

Want None or Faint fluorescence?

5,857 of 7,429 are graded None or Faint at this spec.

Shopping from Singapore?

36 of the 61 retailers with shipping details ship to Singapore. 25 do not. 3 retailers have not published any shipping details.

What this spec means

  • Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
  • 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 1ct D SI1 oval natural diamonds.

Compare NZ Jewellers vs Carbon Sparkle

Related specs

Slightly smaller carat

oval-0-75ct-d-si1-natural

Slightly larger carat

oval-1-25ct-d-si1-natural

One colour grade lower

oval-1ct-e-si1-natural

One clarity grade higher

oval-1ct-d-vs2-natural

One clarity grade lower

oval-1ct-d-si2-natural

Same spec, lab grown

oval-1ct-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 1ct D SI1 Oval Natural Diamonds | Carat Hunter