Radiant|Natural|GIA

3.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 7551366402

Certificate GIA 7551366402

Diamond specifications and retailer prices

From $40,285 USD
₹3,836,620 INR
As of November 2, 2026
Save $31,810 USD (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $72,094 USD at MOH London · As of November 1, 2026
View at MOH London

About this 3.21ct natural radiant diamond

This 3.21ct natural radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551366402. Listed at 9 retailers as of November 1, 2026, with prices from $40,285 to $72,094, a $31,810 spread on the same certified stone. MOH London lists it at $72,094. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.21
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551366402
Dimensions10.66 × 7.34 × 4.71 mm
L/W Ratio1.45
Top View
10.66 mm7.34 mm3.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551366402
Side View
Table 62.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $72,094 USD|Low: $40,285 USD|High: $81,382 USD|Avg: $53,793 USD|-11.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2$40,285 USD
Retailer 7$44,372 USD
Retailer 6$46,128 USD
Retailer 4$46,543 USD
Retailer 8$49,849 USD
Retailer 5$51,706 USD
Retailer 3$55,993 USD
MOH London$72,094 USD

36 data points across 8 retailers

9 retailers$40,285 USD to $72,094 USD

A
Cheapest Retailer
-
$40,285 USD
₹3,836,620 INR
A
Retailer 2
-
$44,372 USD
A$68,264 AUD
View
Retailer 3
-
$45,491 USD
HK$355,400 HKD
View
Price last confirmed 46 days ago
A
Retailer 4
-
$46,128 USD
View
A
Retailer 5
-
$46,543 USD
£36,648 GBP
View
Retailer 6
-
$49,849 USD
A$76,691 AUD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
$51,706 USD
View
B+
Retailer 8
-
$55,993 USD
€53,327 EUR
View
Most Expensive
B
MOH London
A64B41E9F · Nov 1
$72,094 USD
£56,767 GBP
View
8 more retailers have this diamond
Prices start from $40,285 USDSave up to $31,810 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.21ct Radiant
$40,285 USD