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Round|Natural|GIA

5.21ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 5221562779

Certificate GIA 5221562779

Diamond specifications and retailer prices

From $132,835 CAD
$95,093 USD
As of October 30, 2026
Save $85,227 CAD (39%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $218,063 CAD at MOH London · As of October 29, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5221562779. Listed at 7 retailers as of October 29, 2026, with prices from $132,835 to $218,063, a $85,227 spread on the same certified stone. MOH London lists it at $218,063. 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
G
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5221562779
Dimensions11.05 × 11.12 × 6.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
11.05 mm11.12 mm5.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5221562779
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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 30
Current: $218,063 CAD|Low: $132,835 CAD|High: $273,494 CAD|Avg: $160,830 CAD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$132,835 CAD
Retailer 7$133,583 CAD
Retailer 2$139,530 CAD
Retailer 4$144,669 CAD
Retailer 6$156,110 CAD
Retailer 3$168,514 CAD
MOH London$218,063 CAD

22 data points across 7 retailers

7 retailers$132,835 CAD to $218,063 CAD

A
Cheapest Retailer
-
$132,835 CAD
$95,093 USD
A
Retailer 2
-
$133,583 CAD
$95,628 USD
View
A
Retailer 3
-
$139,530 CAD
£78,650 GBP
View
B+
Retailer 4
-
$144,669 CAD
$103,564 USD
View
B+
Retailer 5
-
$156,110 CAD
$111,755 USD
View
B+
Retailer 6
-
$168,514 CAD
€114,890 EUR
View
Most Expensive
B
MOH London
6249AAB8A · Oct 29
$218,063 CAD
£122,917 GBP
View
6 more retailers have this diamond
Prices start from $132,835 CADSave up to $85,227 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.

A
5.21ct Round
$132,835 CAD