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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown round diamond

Every retailer in our index stocking this size and shape, 72 of them, across 896,476 live listings.

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

The market at this size and shape

Active listings

896,476

Retailers carrying

72

Median active price

A$459

Grade combinations

33

Certificate mix:IGI 866,104 · GIA 7,310 · GCAL 2,040 · HRD 253 · AGS 2

What it actually costs

Lower 10% A$197Median A$459Upper 10% A$882

Middle half sell between A$340 to A$535

Certificated stones with a live price only, 161,164 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

165%

Typical difference

A$734

Stones compared

113,546

Across 113,546 stones of this size and shape carried by more than one retailer, the dearest listing sits 165% above the cheapest for the identical certificated diamond, a typical gap of A$734. 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.

2 of the 25 retailers ship to Australia. 23 do not.

Narrow it down by grade

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

D VVS2236,453 · 66rD VS1132,808 · 58rD VVS1108,516 · 56rE VVS297,885 · 56rE VS180,014 · 55rE VVS137,212 · 55rD VS236,849 · 52rF VVS229,750 · 52rE VS229,143 · 48rF VS121,400 · 51rD IF17,514 · 52rD FL12,915 · 35rF VVS111,020 · 48rG VVS28,630 · 45rG VS17,056 · 41rE IF6,306 · 45rF VS26,054 · 47rG VVS13,706 · 42rG VS22,446 · 38rH VS11,930 · 32rH VVS21,847 · 34rF IF1,435 · 38rE FL1,120 · 30rH VS21,043 · 29rI VS1852 · 28rH VVS1650 · 25rI VVS2606 · 24rG IF368 · 23rI VS2355 · 24rI VVS1298 · 12rH IF120 · 25rF FL104 · 16rI IF67 · 14r

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

  • Round: the most common cut, with the highest light return per carat.
  • 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 113,546 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 165%, about A$734.

Can I see retailers for one exact grade?

Yes. Each of the 33 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.