Monthly Analysis
October 2026 Diamond Market Report
Data as of October 15, 2026
Diamond Market Snapshot
In October 2026, the CaratRadar Diamond Price Index stood at $3,025, reflecting the weighted average retail price across 18,788,159 certified diamonds tracked from leading diamond retailers worldwide. Natural diamonds averaged $5,321 compared to $1,825 for lab-grown equivalents, a ratio of 2.9x.
Shape-by-Shape Analysis
Month-over-month price changes by shape and diamond type.
Round
Lab Grown
$1,515
4,386,144 diamonds
vs last month
-1.4%Natural
$4,337
3,382,210 diamonds
vs last month
+0.3%Oval
Lab Grown
$2,046
2,080,065 diamonds
vs last month
-1.1%Natural
$7,115
702,575 diamonds
vs last month
+1.5%Cushion
Lab Grown
$2,450
777,895 diamonds
vs last month
0%Natural
$9,450
288,095 diamonds
vs last month
+0.7%Princess
Lab Grown
$1,744
531,591 diamonds
vs last month
-2.7%Natural
$4,688
240,349 diamonds
vs last month
-2.1%Emerald
Lab Grown
$2,094
1,012,921 diamonds
vs last month
-1.7%Natural
$5,930
560,566 diamonds
vs last month
+0.4%Pear
Lab Grown
$1,640
1,270,949 diamonds
vs last month
-1.2%Natural
$5,509
562,585 diamonds
vs last month
+3.7%Marquise
Lab Grown
$1,631
851,823 diamonds
vs last month
-1.9%Natural
$4,713
215,612 diamonds
vs last month
+2.5%Radiant
Lab Grown
$2,332
942,497 diamonds
vs last month
+0.6%Natural
$9,569
185,597 diamonds
vs last month
+0.5%Heart
Lab Grown
$1,907
330,790 diamonds
vs last month
-2.6%Natural
$4,892
224,668 diamonds
vs last month
+3.5%Asscher
Lab Grown
$2,318
153,347 diamonds
vs last month
-2.5%Natural
$5,611
87,880 diamonds
vs last month
+4.3%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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