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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown radiant diamond

Every retailer in our index stocking this size and shape, 60 of them, across 75,964 live listings.

Updated September 14, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

75,964

Retailers carrying

60

Median active price

HK$3,909

Grade combinations

29

Certificate mix:IGI 69,450 · GIA 4,381 · GCAL 626 · HRD 2

What it actually costs

Lower 10% HK$1,623Median HK$3,909Upper 10% HK$15,192

Middle half sell between HK$2,900 to HK$10,215

Certificated stones with a live price only, 19,847 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

216%

Typical difference

HK$7,153

Stones compared

10,764

Across 10,764 stones of this size and shape carried by more than one retailer, the dearest listing sits 216% above the cheapest for the identical certificated diamond, a typical gap of HK$7,153. That gap is what comparing before you buy avoids.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

Show 15 more retailers

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified September 2, 2026.

Narrow it down by grade

Each combination below has its own page with the retailers that stock exactly that grade.

D VVS212,575 · 53rE VVS29,575 · 48rD VS19,505 · 50rD VVS18,975 · 46rE VS16,854 · 47rE VVS13,971 · 43rF VVS23,443 · 44rD IF3,386 · 38rF VS13,356 · 41rG VS12,330 · 35rE VS21,685 · 34rD FL1,578 · 27rD VS21,487 · 36rG VVS21,274 · 37rE IF949 · 36rF VVS1922 · 37rG VS2860 · 31rF VS2835 · 34rH VS1771 · 31rH VVS2441 · 31rH VS2237 · 28rE FL233 · 24rF IF178 · 29rG VVS1135 · 29rI VS197 · 21rI VVS293 · 19rG IF92 · 21rI VS268 · 18rH IF30 · 19r

Stones at this spec now

Live examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

What this spec means

  • Radiant: a rectangular brilliant cut that combines the emerald outline with round-style faceting.
  • Lab-grown: chemically identical to natural diamonds, typically 60% to 80% less than a comparable natural cohort.

Frequently asked

How much do retailers differ on the same diamond?

Across 10,764 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 216%, about HK$7,153.

Can I see retailers for one exact grade?

Yes. Each of the 29 colour and clarity combinations above has its own page listing the retailers that stock exactly that grade.

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?

Live listings refresh daily. Static facts about each retailer refresh weekly.

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.