Carat Hunter · Where to buy diamonds
0.5ct · I · SI2 · Asscher · 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
49
Retailers carrying
19
Price range
HK$3,104 to
HK$6,544
Median confirmed price
HK$5,146
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.
- United States·Founded 2012·GIA·Ships to Hong KongTerms not yet verifiedVisit Diamond Wish
- Germany·Founded 2011·GIA, IGITerms not yet verifiedVisit Yorxs
- United Kingdom·GIA, IGITerms not yet verifiedVisit MOH London
- United Kingdom·Founded 2005·GIA·Ships to Hong KongTerms not yet verifiedVisit 77 Diamonds
- United States·Founded 2010·Ships to Hong KongTerms not yet verifiedVisit Allurez
- United States·Founded 1999·GIATerms not yet verifiedVisit Ritani
- United States·Founded 1999·GIATerms not yet verifiedVisit Adiamor
- United States·Founded 2004·GIA·30-day returns·Ships to Hong KongTerms read on the retailer’s own site, October 19, 2026Visit B2C Jewels
- United States·Founded 1999·GIA·Ships to Hong KongTerms not yet verifiedVisit Blue Nile
- United States·Founded 2002·GIA·Ships to Hong KongTerms not yet verifiedVisit Brilliance
Show 9 more retailers
- United States·Founded 1998·IGI·Ships to Hong KongTerms not yet verifiedVisit DreamStone
- Australia·Founded 2004·IGI·Ships to Hong KongTerms not yet verifiedVisit MoiMoi Australia
- United Kingdom·Founded 2022·IGI·Ships to Hong KongTerms not yet verifiedVisit Moon Ocean
- New Zealand·Founded 2006·IGI·30-day returns·Ships to Hong KongTerms read on the retailer’s own site, October 19, 2026Visit NZ Jewellers
- United States·Founded 2013·IGI·Ships to Hong KongTerms not yet verifiedVisit Reve Diamonds
- United States·Founded 1959·GIATerms not yet verifiedVisit Riddles Jewelry
- Hong Kong·GIA·Ships to Hong KongTerms not yet verifiedVisit Ting Diamond
- Australia·GIATerms not yet verifiedVisit Wholesale Diamonds Direct
- United States·GIA·Final sale: no returnsTerms read on the retailer’s own site, October 19, 2026Visit William & Sons Jewelers
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.
Stones at this spec now
Current examples carried by more than one retailer, so the comparison is real. Prices shown in USD.
- 0.5ct I SI2from $396 across 9 retailersAs of November 6, 2026
- 0.45ct I SI2from $529 across 5 retailersAs of November 6, 2026
- 0.46ct I SI2from $657 across 3 retailersAs of November 5, 2026
- 0.51ct I SI2from $764 across 4 retailersAs of November 5, 2026
- 0.45ct I SI2from $740 across 2 retailersAs of November 5, 2026
How pricing is spread at this spec
For the 31 diamonds at this spec with a recently confirmed price, each taken at its cheapest confirmed price, the distribution looks like this:
- Lowest confirmedHK$3,104
- 10th percentileHK$4,530
- MedianHK$5,146
- 75th percentileHK$5,663
- 90th percentileHK$5,988
- Highest confirmedHK$6,544
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$4,530. Use the explorer to sort by price.
Sort by priceGIA-graded only?
39 of 49 (80%) carry GIA. 13 retailers stock GIA at this spec.
Want None or Faint fluorescence?
35 of 49 are graded None or Faint at this spec.
Shopping from Hong Kong?
12 of the 18 retailers with shipping details ship to Hong Kong. 6 do not. 1 retailer has not published any shipping details.
What this spec means
- Asscher: a square step cut with cropped corners.
- I colour: near-colourless, with a faint warm tint just detectable in larger stones.
- 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 I SI2 asscher natural diamonds.
Compare Diamond Wish vs YorxsRelated specs
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.