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5.21ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 623458049

Shape and cutting style on the report: Round brilliant

Certificate IGI 623458049

Diamond specifications and retailer prices

From $66,590 CAD
€45,400 EUR
As of October 23, 2026
2 retailers carry this diamond
Most expensive: $86,773 CAD at MOH London · As of October 21, 2026
View at MOH London

About this 5.21ct natural round diamond

This 5.21ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 623458049. Listed at 2 retailers as of October 21, 2026. 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

5.21
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 623458049
Dimensions11.02 × 11.10 × 6.88 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
11.02 mm11.10 mm5.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 623458049
Side View
Table 56.0%Crown 35.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 23
Current: $86,773 CAD|Low: $42,873 CAD|High: $86,773 CAD|Avg: $61,947 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 23, 2026
Retailer 4$42,873 CAD
Retailer 3$54,650 CAD
Retailer 2$66,590 CAD
MOH London$86,773 CAD

7 data points across 4 retailers

2 retailers$66,590 CAD to $86,773 CAD

Retailer 1
-
$66,590 CAD
€45,400 EUR
Price last confirmed 7 days ago
Most Expensive
MOH London
08A2F9B0E · Oct 21
$86,773 CAD
£48,912 GBP
View
Price last confirmed 9 days ago
1 more retailer has this diamond

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.

5.21ct Round
$66,590 CAD