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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 €25,724 EUR
$28,739 USD
As of October 31, 2026
Save €13,981 EUR (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €39,705 EUR 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 October 31, 2026, with prices from €25,724 to €39,705, a €13,981 spread on the same certified stone. MOH London lists it at €39,705. 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
Color
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: Oct 31
Current: €39,705 EUR|Low: €22,757 EUR|High: €40,183 EUR|Avg: €28,837 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3€25,724 EUR
Retailer 4€26,036 EUR
Retailer 6€26,482 EUR
Retailer 7€27,051 EUR
Retailer 5€28,064 EUR
Retailer 2€30,122 EUR
MOH London€39,705 EUR

26 data points across 7 retailers

7 retailers€25,724 EUR to €39,705 EUR

B+
Cheapest Retailer
-
€25,724 EUR
$28,739 USD
Final sale: no returns
B+
Retailer 2
-
€26,036 EUR
$29,088 USD
View
B+
Retailer 3
-
€26,482 EUR
$29,586 USD
View
B
Retailer 4
-
€27,051 EUR
$30,221 USD
View
B
Retailer 5
-
€28,064 EUR
$31,353 USD
View
B+
Retailer 6
-
€30,122 EUR
View
Most Expensive
B
MOH London
D53CFFBBD · Nov 1
€39,705 EUR
£34,928 GBP
View
6 more retailers have this diamond
Prices start from €25,724 EURSave up to €13,981 EUR

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
€25,724 EUR