Top 50 Diamonds by Value in Australia

Our value score combines price, quality, certification and market context. These stones deliver the most per dollar across our inventory. Pricing shown in AUD.

Last updated 29 October 2026 · Based on 50 active listings ranked by value

What 'Best Value' Actually Means Here

Value score isn't just 'cheapest'. It's a composite that combines four signals: price versus peer-median for this exact shape/carat/colour/clarity bucket, our quality score, the certificate's rigour, and market context (how long this stone has been listed, how many retailers carry it, and whether price has moved recently). A stone scoring 95 on value is typically trading 15 to 30% below the median for its peer group with no compromise on quality.

This is the right list if your brief is 'I want to spend smart money.' We're surfacing diamonds that genuine market data says are under-priced relative to peers. Either because a retailer has unusual pricing, because the stone has been listed for a while, or because the specific spec isn't in high demand right now. Treat each entry as a starting point: click through, look at the photos, and check whether the quality holds up for you.

Value score can reward unusual specs that happen to be cheap but don't match what you want. A 1.5ct K/SI2 in 'Very Good' cut might top the value list but still not be what you're after. Always cross-check against quality score. The ideal buy has both value and quality in the top quartile.

#DiamondOriginGradeLowest Price (AUD)
12.08ct OVAL D IFnaturalA+$22,855 AUD
23.20ct HEART E VVS1naturalA+$42,941 AUD
33.01ct HEART E VVS2naturalA+$46,613 AUD
41.32ct ROUND E IFnaturalA+$11,739 AUD
51.30ct PRINCESS D IFnaturalA+$14,717 AUD
62.00ct MARQUISE E IFnaturalA+$27,104 AUD
71.34ct ROUND E IFnaturalA+$12,265 AUD
85.02ct ROUND E IFnaturalA+$218,619 AUD
92.00ct HEART E IFnaturalA+$24,913 AUD
101.33ct ROUND E IFnaturalA+$12,570 AUD
111.33ct ROUND E FLnaturalA+$14,797 AUD
121.25ct ROUND D IFnaturalA+$9,974 AUD
133.21ct HEART D IFnaturalA+$70,927 AUD
141.55ct ROUND E FLnaturalA+$19,110 AUD
151.31ct ROUND D IFnaturalA+$12,431 AUD
165.14ct PEAR D FLnaturalA+$275,735 AUD
172.50ct MARQUISE D IFnaturalA+$58,003 AUD
182.01ct EMERALD D IFnaturalA+$29,193 AUD
191.62ct ROUND D IFnaturalA+$18,588 AUD
201.53ct ROUND E IFnaturalA+$19,158 AUD
211.51ct ROUND E IFnaturalA+$17,964 AUD
221.50ct ROUND E IFnaturalA+$17,507 AUD
231.33ct ROUND E IFnaturalA+$14,087 AUD
240.68ct ROUND D IFnaturalA+$1,838 AUD
254.02ct HEART D FLnaturalA+$154,794 AUD
263.15ct PEAR D FLnaturalA+$92,840 AUD
273.03ct OVAL D FLnaturalA+$89,000 AUD
281.51ct OVAL D IFnaturalA+$16,526 AUD
291.42ct ROUND E IFnaturalA+$13,497 AUD
301.31ct ROUND E IFnaturalA+$13,923 AUD
311.28ct PEAR E IFnaturalA+$9,693 AUD
321.25ct ROUND E VVS2naturalA+$8,645 AUD
331.01ct MARQUISE D FLnaturalA+$5,678 AUD
340.80ct PEAR D FLnaturalA+$3,255 AUD
350.60ct ROUND E IFnaturalA+$1,498 AUD
360.53ct ROUND D IFnaturalA+$1,238 AUD
3710.10ct PEAR E FLnaturalA+$855,217 AUD
382.56ct EMERALD G VVS1naturalA+$25,124 AUD
391.55ct ROUND E IFnaturalA+$21,501 AUD
401.47ct ROUND E IFnaturalA+$17,891 AUD
411.35ct ROUND E IFnaturalA+$12,522 AUD
421.31ct ROUND D FLnaturalA+$12,740 AUD
431.30ct ROUND D VVS2naturalA+$8,882 AUD
441.30ct ROUND E IFnaturalA+$12,531 AUD
451.30ct ROUND D IFnaturalA+$15,781 AUD
461.01ct EMERALD E VVS2naturalA+$3,185 AUD
470.63ct ROUND E IFnaturalA+$1,256 AUD
480.55ct ROUND E VVS1naturalA+$983 AUD
490.54ct ROUND E IFnaturalA+$1,224 AUD
500.52ct ROUND E IFnaturalA+$1,310 AUD
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