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3.21ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 826667269

Shape and cutting style on the report: Round brilliant

Certificate IGI 826667269

Diamond specifications and retailer prices

From €11,715 EUR
$13,140 USD
As of November 2, 2026
Save €6,399 EUR (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €18,115 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 IGI 826667269. Listed at 17 retailers as of November 1, 2026, with prices from €11,715 to €18,115, a €6,399 spread on the same certified stone. MOH London lists it at €18,115. 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
FluorescenceFaint
Crown angle35.9°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 826667269
Dimensions9.37 × 9.41 × 5.85 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.37 mm9.41 mm3.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 826667269
Side View
Table 57.0%Crown 35.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.3%

Caratlytics Score

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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: €18,115 EUR|Low: €11,715 EUR|High: €19,002 EUR|Avg: €13,965 EUR|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 14€11,715 EUR
Retailer 13€11,770 EUR
Retailer 12€12,269 EUR
Retailer 8€12,472 EUR
Retailer 3€12,562 EUR
Retailer 2€12,700 EUR
Retailer 4€12,803 EUR
Retailer 11€13,656 EUR
Retailer 6€13,869 EUR
Retailer 5€14,217 EUR
Retailer 7€14,403 EUR
Retailer 9€14,549 EUR
Retailer 10€15,035 EUR
Retailer 15€16,431 EUR
MOH London€18,115 EUR

35 data points across 15 retailers

17 retailers€11,715 EUR to €18,115 EUR

A
Cheapest Retailer
-
€11,715 EUR
$13,140 USD
A
Retailer 2
-
€11,770 EUR
$13,201 USD
View
A
Retailer 3
-
€12,269 EUR
$13,761 USD
View
Final sale: no returns
A
Retailer 4
-
€12,472 EUR
£11,015 GBP
View
A
Retailer 5
-
€12,562 EUR
$14,090 USD
View
A
Retailer 6
-
€12,700 EUR
£11,216 GBP
View
A
Retailer 7
-
€12,803 EUR
$14,360 USD
View
A
Retailer 8
-
€13,656 EUR
$15,317 USD
View
A
Retailer 9
-
€13,869 EUR
$15,556 USD
View
A
Retailer 10
-
€14,217 EUR
$15,946 USD
View
Retailer 11
-
€14,403 EUR
$16,154 USD
View
Price last confirmed 64 days ago
A
Retailer 12
-
€14,403 EUR
$16,154 USD
View
A
Retailer 13
-
€14,549 EUR
View
A
Retailer 14
-
€15,035 EUR
ZAR 272,433 ZAR
View
B+
Retailer 15
-
€16,431 EUR
$18,429 USD
View
Retailer 16
-
€16,431 EUR
$18,429 USD
View
Price last confirmed 65 days ago
Most Expensive
A
MOH London
15A73A5D1 · Nov 1
€18,115 EUR
£15,998 GBP
View
16 more retailers have this diamond
Prices start from €11,715 EURSave up to €6,399 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.

A
3.21ct Round
€11,715 EUR