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3.21ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 831624590

Shape and cutting style on the report: Round brilliant

Certificate IGI 831624590

Diamond specifications and retailer prices

From €16,993 EUR
$18,985 USD
As of October 29, 2026
Save €6,028 EUR (26%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €23,022 EUR at MOH London · As of October 29, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 831624590. Listed at 6 retailers as of October 29, 2026, with prices from €16,993 to €23,022, a €6,028 spread on the same certified stone. MOH London lists it at €23,022. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 831624590
Dimensions9.36 × 9.43 × 5.84 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.36 mm9.43 mm3.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 831624590
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.7°CuletDepth 62.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: €23,022 EUR|Low: €16,993 EUR|High: €23,022 EUR|Avg: €18,961 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 5€16,993 EUR
Retailer 6€17,533 EUR
Retailer 2€18,671 EUR
Retailer 3€18,687 EUR
Retailer 4€20,771 EUR
MOH London€23,022 EUR

11 data points across 6 retailers

6 retailers€16,993 EUR to €23,022 EUR

A
Cheapest Retailer
-
€16,993 EUR
$18,985 USD
A
Retailer 2
-
€17,533 EUR
$19,588 USD
View
A
Retailer 3
-
€18,671 EUR
£16,425 GBP
View
A
Retailer 4
-
€18,687 EUR
View
B+
Retailer 5
-
€20,771 EUR
$23,206 USD
View
Most Expensive
B+
MOH London
E5F6E9E8D · Oct 29
€23,022 EUR
£20,252 GBP
View
5 more retailers have this diamond
Prices start from €16,993 EURSave up to €6,028 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
€16,993 EUR