Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct natural radiant diamond

Every retailer in our index stocking this size and shape, 74 of them, across 40,419 current listings.

Updated November 7, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

40,419

Retailers carrying

74

Median confirmed price

A$8,888

Grade combinations

58

Certificate mix:GIA 35,142 · IGI 696 · HRD 684

What it actually costs

Half of these diamonds are listed between A$6,026 and A$12,570 (as of November 7, 2026).

Lower 10% A$4,212Median A$8,888Upper 10% A$16,356

Middle half listed between A$6,026 to A$12,570

Certificated stones with a recently confirmed price only, 3,902 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Every retailer that stocks this spec

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

  1. 1NZ Jewellers2,563 in stock
    New Zealand·Founded 2006·EGL, GIA, HRD, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  2. 2Carbon Sparkle2,363 in stock
    United States·EGL, GIA, GSI, HRD·21-day returns·Ships to Australia
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  3. 3

    The Perfect Carat

    1,955 in stock
    US·EGL, GIA, HRD, IGI
    Terms not yet verified
  4. 4Aurelinne1,886 in stock
    United States·Founded 2021·EGL, GIA, HRD, IGI·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  5. 7Allurez1,491 in stock
    United States·Founded 2010·GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit Allurez
  6. 8Rare Carat1,453 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  7. 9Yorxs1,299 in stock
    Germany·Founded 2011·GIA, HRD, IGI
    Terms not yet verified
    Visit Yorxs
  8. 10B2C Jewels1,239 in stock
    United States·Founded 2004·GIA, HRD, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 64 more retailers
  1. 19RockHer849 in stock
    United States·Founded 2016·GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit RockHer
  2. 20Cape Diamonds743 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  3. 27Zales566 in stock
    United States·Founded 1924·GIA, IGI
    Terms not yet verified
    Visit Zales
  4. 28Jared563 in stock
    United States·Founded 1993·GIA, IGI
    Terms not yet verified
    Visit Jared
  5. 31GemsNY428 in stock
    United States·Founded 1988·GIA, HRD, IGI·Ships to Australia
    Terms not yet verified
    Visit GemsNY
  6. 37

    GemTrove

    356 in stock
    AU·GIA, HRD, IGI·Ships to Australia
    Terms not yet verified
  7. 42

    Washington Diamond

    241 in stock
    US·GIA
    Terms not yet verified
  8. 61ZCOVA36 in stock
    Malaysia·Founded 2015·GIA·Ships to Australia
    Terms not yet verified
    Visit ZCOVA
  9. 67

    USA Jewels

    15 in stock
    US·GIA
    Terms not yet verified
  10. 68

    Robbins Brothers

    8 in stock
    US·GIA, GSI
    Terms not yet verified
  11. 71

    Lauren B

    2 in stock
    US
    Terms not yet verified

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.

45 of the 68 retailers with shipping details ship to Australia. 23 do not. 6 retailers have not published any shipping details.

Narrow it down by grade

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

H SI11,849 · 68rJ SI11,786 · 59rI SI11,726 · 65rI VS21,661 · 62rG SI11,604 · 65rJ VS21,540 · 56rI SI21,526 · 54rJ SI21,504 · 51rH SI21,390 · 58rG VS21,356 · 68rH VS11,254 · 63rG SI21,217 · 59rH VS21,200 · 67rG VS11,141 · 62rI VS11,107 · 62rF VS21,104 · 65rF VS1993 · 66rH VVS2965 · 64rF SI1928 · 61rE VS2880 · 65rE SI2809 · 51rF SI2765 · 56rE SI1744 · 65rK SI1671 · 43rD VS2658 · 65rK VS2638 · 39rJ VS1633 · 57rE VS1618 · 59rD SI1590 · 62rD VS1571 · 56rK SI2545 · 39rI VVS2520 · 56rH VVS1519 · 62rD SI2500 · 51rG VVS1499 · 58rI VVS1475 · 56rG VVS2451 · 55rJ VVS2437 · 54rK VS1436 · 43rF VVS2394 · 55rJ VVS1321 · 52rE VVS2299 · 55rK VVS2294 · 41rF VVS1240 · 55rD VVS2239 · 53rK VVS1212 · 36rI IF138 · 35rD VVS1135 · 43rE VVS173 · 35rH IF67 · 21rK IF48 · 20rH FL29 · 27rJ IF26 · 13rG IF24 · 12rE IF18 · 12rI FL13 · 13rD IF12 · 11rG FL12 · 12r

Stones at this spec now

Current 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.
  • Natural: mined diamonds with the certification, provenance and resale profile traditional buyers expect.

Frequently asked

How much do retailers differ on the same diamond?

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Can I see retailers for one exact grade?

Yes. Each of the 58 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?

Listings refresh as we re-read each retailer, most of them every day. 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.