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Carat Hunter · Where to buy diamonds

1.25ct · K · 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

1,081

Retailers carrying

40

Price range

HK$8,326 to
HK$39,736

Median confirmed price

HK$16,559

Certificate mix:GIA 893 · IGI 114 · HRD 24

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 Jewellers128 in stock
    New Zealand·Founded 2006·GIA, HRD, IGI·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  4. 4

    The Perfect Carat

    60 in stock
    US·GIA, HRD, IGI
    Terms not yet verified
  8. 8Rare Carat45 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  10. 10RockHer41 in stock
    United States·Founded 2016·GIA, IGI·Ships to Hong Kong
    Terms not yet verified
    Visit RockHer
Show 30 more retailers
  1. 11Cape Diamonds38 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  2. 12Yorxs38 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  4. 14Allurez35 in stock
    United States·Founded 2010·Ships to Hong Kong
    Terms not yet verified
    Visit Allurez
  5. 15B2C Jewels30 in stock
    United States·Founded 2004·GIA, IGI·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  25. 35

    GemTrove

    4 in stock
    AU·GIA
    Terms not yet verified

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 1,081 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 natural oval diamond, all grades

How pricing is spread at this spec

For the 198 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    HK$8,326
  • 10th percentile
    HK$10,910
  • Median
    HK$16,559
  • 75th percentile
    HK$23,052
  • 90th percentile
    HK$27,424
  • Highest confirmed
    HK$39,736

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 HK$10,910. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

277 of 1,081 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

GIA-graded only?

893 of 1,081 (83%) carry GIA. 38 retailers stock GIA at this spec.

Want None or Faint fluorescence?

854 of 1,081 are graded None or Faint at this spec.

Shopping from Hong Kong?

23 of the 37 retailers with shipping details ship to Hong Kong. 14 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.
  • K colour: Faint tint. Noticeable warmth even face-up, particularly in white-metal settings.
  • 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 1.25ct K SI1 oval natural diamonds.

Compare NZ Jewellers vs Carbon Sparkle

Related specs

Slightly smaller carat

oval-1ct-k-si1-natural

Slightly larger carat

oval-1-5ct-k-si1-natural

One colour grade higher

oval-1-25ct-j-si1-natural

One clarity grade higher

oval-1-25ct-k-vs2-natural

One clarity grade lower

oval-1-25ct-k-si2-natural

Same spec, lab grown

oval-1-25ct-k-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 1.25ct K SI1 Oval Natural Diamonds | Carat Hunter