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Carat Hunter · Where to buy diamonds

2ct · K · SI2 · Round · 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

3,023

Retailers carrying

41

Price range

NZ$4,278 to
NZ$32,392

Median confirmed price

NZ$12,765

Certificate mix:GIA 2,025 · IGI 678 · HRD 167

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. 1Carbon Sparkle365 in stock
    United States·GIA, HRD, IGI·21-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  2. 2NZ Jewellers353 in stock
    New Zealand·Founded 2006·GIA, HRD, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  3. 3

    The Perfect Carat

    215 in stock
    US·GIA, HRD, IGI
    Terms not yet verified
  4. 4Aurelinne204 in stock
    United States·Founded 2021·GIA, HRD, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  6. 6Yorxs170 in stock
    Germany·Founded 2011·GIA, HRD, IGI
    Terms not yet verified
    Visit Yorxs
  7. 7Rare Carat158 in stock
    United States·Founded 2016·GIA, HRD, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  9. 9Allurez119 in stock
    United States·Founded 2010·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
Show 31 more retailers
  2. 12B2C Jewels109 in stock
    United States·Founded 2004·GIA, HRD, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  12. 22GemsNY33 in stock
    United States·Founded 1988·GIA, HRD, IGI·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  24. 34

    GemTrove

    7 in stock
    AU·GIA, HRD
    Terms not yet verified
  31. 41ZCOVA1 in stock
    Malaysia·Founded 2015·GIA·Ships to New Zealand
    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 3,023 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 2ct natural round diamond, all grades

How pricing is spread at this spec

For the 600 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    NZ$4,278
  • 10th percentile
    NZ$8,169
  • Median
    NZ$12,765
  • 75th percentile
    NZ$16,140
  • 90th percentile
    NZ$21,371
  • Highest confirmed
    NZ$32,392

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 NZ$8,169. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

1,932 of 3,023 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

GIA-graded only?

2,025 of 3,023 (67%) carry GIA. 40 retailers stock GIA at this spec.

Want None or Faint fluorescence?

2,485 of 3,023 are graded None or Faint at this spec.

Shopping from New Zealand?

24 of the 38 retailers with shipping details ship to New Zealand. 14 do not. 3 retailers have not published any shipping details.

What this spec means

  • Round: the most common cut, with the highest light return per carat.
  • K colour: Faint tint. Noticeable warmth even face-up, particularly in white-metal settings.
  • SI2 clarity: Slightly Included 2. Inclusions easy to see at 10x. May be visible to the unaided eye in some stones.
  • 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 2ct K SI2 round natural diamonds.

Compare Carbon Sparkle vs NZ Jewellers

Related specs

Slightly smaller carat

round-1-5ct-k-si2-natural

Slightly larger carat

round-3ct-k-si2-natural

One colour grade higher

round-2ct-j-si2-natural

One clarity grade higher

round-2ct-k-si1-natural

Same spec, lab grown

round-2ct-k-si2-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 2ct K SI2 Round Natural Diamonds | Carat Hunter