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Round|Natural|GIA

6.21ct J IF Round Natural Diamond

EX • J/IF • GIA 1236865755

Certificate GIA 1236865755

Diamond specifications and retailer prices

From $208,717 CAD
£117,649 GBP
As of November 1, 2026
Save $125,169 CAD (37%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $333,886 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 6.21ct natural round diamond

This 6.21ct natural round sits in the over five carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1236865755. Listed at 4 retailers as of November 1, 2026, with prices from $208,717 to $333,886, a $125,169 spread on the same certified stone. MOH London lists it at $333,886. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

6.21
Carat
J
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1236865755
Dimensions11.91 × 11.95 × 7.16 mm
L/W Ratio1.00
Star length55%
Girdle conditionFaceted
Cert comments
Minor details of polish are not shown.
Top View
11.91 mm11.95 mm6.21 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236865755
Side View
Table 57.0%Crown 34°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 60.0%

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 1
Current: $333,886 CAD|Low: $208,717 CAD|High: $337,909 CAD|Avg: $255,899 CAD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 3$208,717 CAD
Retailer 4$226,210 CAD
Retailer 2$258,250 CAD
MOH London$333,886 CAD

21 data points across 4 retailers

4 retailers$208,717 CAD to $333,886 CAD

B+
Cheapest Retailer
-
$208,717 CAD
£117,649 GBP
B
Retailer 2
-
$226,210 CAD
$161,937 USD
View
B
Retailer 3
-
$258,250 CAD
€176,070 EUR
View
Most Expensive
B
MOH London
7E80ABAE4 · Nov 1
$333,886 CAD
£188,204 GBP
View
3 more retailers have this diamond
Prices start from $208,717 CADSave up to $125,169 CAD

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+
6.21ct Round
$208,717 CAD