Monthly Analysis
July 2025 Diamond Market Report
Data as of July 31, 2025
Diamond Market Snapshot
In July 2025, the CaratRadar Diamond Price Index stood at $3,899, reflecting the weighted average retail price across 3,166,862 certified diamonds tracked from leading diamond retailers worldwide. Natural diamonds averaged $5,691 compared to $2,689 for lab-grown equivalents, a ratio of 2.1x.
Shape-by-Shape Analysis
Month-over-month price changes by shape and diamond type.
Round
Lab Grown
$2,666
608,223 diamonds
vs last month
+18.1%Natural
$4,324
711,279 diamonds
vs last month
+48.6%Oval
Lab Grown
$3,459
255,564 diamonds
vs last month
+13.4%Natural
$8,206
125,621 diamonds
vs last month
+81.8%Cushion
Lab Grown
$3,120
137,332 diamonds
vs last month
-4.8%Natural
$10,561
63,332 diamonds
vs last month
+63.9%Princess
Lab Grown
$2,340
118,821 diamonds
vs last month
-1.7%Natural
$7,883
48,261 diamonds
vs last month
+116.4%Emerald
Lab Grown
$2,463
211,503 diamonds
vs last month
-6.9%Natural
$6,214
134,229 diamonds
vs last month
+119.5%Pear
Lab Grown
$2,207
175,154 diamonds
vs last month
+4.2%Natural
$5,518
86,554 diamonds
vs last month
+76.2%Marquise
Lab Grown
$2,284
102,113 diamonds
vs last month
+1.5%Natural
$5,559
18,924 diamonds
vs last month
+55.6%Radiant
Lab Grown
$2,615
185,391 diamonds
vs last month
-0.7%Natural
$11,530
32,700 diamonds
vs last month
+38.8%Heart
Lab Grown
$2,322
63,386 diamonds
vs last month
+1.8%Natural
$5,118
37,665 diamonds
vs last month
+39%Asscher
Lab Grown
$2,996
32,887 diamonds
vs last month
-14.2%Natural
$6,797
17,923 diamonds
vs last month
+31.8%Key Takeaways
- ✓Lab-grown diamonds continue to offer significant value compared to natural equivalents.
- ✓Round and oval cuts remain the most liquid market segments with the most comparable listings.
- ✓Price spreads between retailers vary significantly, so use CaratRadar to find the best price for the exact same certified stone.
About This Report
This report is generated automatically from CaratRadar's live diamond pricing database, which aggregates daily data from major diamond retailers. All prices are averages across active listings and may not reflect individual diamond prices. Data updated daily.
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