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Carat Hunter · Where to buy diamonds

0.5ct · H · SI2 · Heart · 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

303

Retailers carrying

28

Price range

£226 to
£724

Median confirmed price

£372

Certificate mix:GIA 275 · IGI 9

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.

  7. 7Allurez7 in stock
    United States·Founded 2010·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez
  8. 8NZ Jewellers6 in stock
    New Zealand·Founded 2006·GIA, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  10. 10B2C Jewels4 in stock
    United States·Founded 2004·GIA·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 18 more retailers
  3. 13

    The Perfect Carat

    4 in stock
    US·GIA
    Terms not yet verified
  6. 16Yorxs3 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  11. 21Rare Carat2 in stock
    United States·Founded 2016·GIA·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  14. 24

    GemTrove

    1 in stock
    AU·GIA
    Terms not yet verified
  18. 28ZCOVA1 in stock
    Malaysia·Founded 2015·GIA·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 303 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 0.5ct natural heart diamond, all grades

How pricing is spread at this spec

For the 189 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:

  • Lowest confirmed
    £226
  • 10th percentile
    £251
  • Median
    £372
  • 75th percentile
    £405
  • 90th percentile
    £447
  • Highest confirmed
    £724

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 £251. Use the explorer to sort by price.

Sort by price

Best cut quality for the spec?

1 of 303 active listings carry Excellent or Ideal across cut, polish and symmetry.

View top-cut subset

GIA-graded only?

275 of 303 (91%) carry GIA. 23 retailers stock GIA at this spec.

Want None or Faint fluorescence?

268 of 303 are graded None or Faint at this spec.

Shopping from United Kingdom?

20 of the 26 retailers with shipping details ship to United Kingdom. 6 do not. 2 retailers have not published any shipping details.

What this spec means

  • Heart: a brilliant cut with a cleft and a pointed tip, classic and recognizable.
  • H colour: near-colourless, with a slight warm tint visible only against a colourless reference.
  • 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 0.5ct H SI2 heart natural diamonds.

Compare MoiMoi Australia vs 77 Diamonds

Related specs

Slightly larger carat

heart-0-75ct-h-si2-natural

One colour grade higher

heart-0-5ct-g-si2-natural

One colour grade lower

heart-0-5ct-i-si2-natural

One clarity grade higher

heart-0-5ct-h-si1-natural

Same spec, lab grown

heart-0-5ct-h-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 0.5ct H SI2 Heart Natural Diamonds | Carat Hunter