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3.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1523894677

Certificate GIA 1523894677

Diamond specifications and retailer prices

From $51,078 NZD
$28,739 USD
As of November 2, 2026
Save $27,761 NZD (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $78,838 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 3.21ct natural round diamond

This 3.21ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1523894677. Listed at 7 retailers as of November 1, 2026, with prices from $51,078 to $78,838, a $27,761 spread on the same certified stone. MOH London lists it at $78,838. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1523894677
Dimensions9.38 × 9.45 × 5.85 mm
L/W Ratio1.01
Star length50%
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
9.38 mm9.45 mm3.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1523894677
Side View
Table 58.0%Crown 33.5°Girdle: STK-STKPavilion 41.2°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $78,838 NZD|Low: $45,186 NZD|High: $79,789 NZD|Avg: $57,272 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3$51,078 NZD
Retailer 4$51,698 NZD
Retailer 6$52,583 NZD
Retailer 7$53,712 NZD
Retailer 5$55,724 NZD
Retailer 2$59,544 NZD
MOH London$78,838 NZD

27 data points across 7 retailers

7 retailers$51,078 NZD to $78,838 NZD

B+
Cheapest Retailer
-
$51,078 NZD
$28,739 USD
Final sale: no returns
B+
Retailer 2
-
$51,698 NZD
$29,088 USD
View
B+
Retailer 3
-
$52,583 NZD
$29,586 USD
View
B
Retailer 4
-
$53,712 NZD
$30,221 USD
View
B
Retailer 5
-
$55,724 NZD
$31,353 USD
View
B+
Retailer 6
-
$59,544 NZD
€31,907 EUR
View
Most Expensive
B
MOH London
D53CFFBBD · Nov 1
$78,838 NZD
£34,928 GBP
View
6 more retailers have this diamond
Prices start from $51,078 NZDSave up to $27,761 NZD

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.

B+
3.21ct Round
$51,078 NZD