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Round|Natural|GIA

1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6552995220

Certificate GIA 6552995220

Diamond specifications and retailer prices

From $6,786 CAD
As of November 6, 2026
Save $4,079 CAD (38%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,866 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552995220. Listed at 8 retailers as of November 4, 2026, with prices from $6,786 to $10,866, a $4,079 spread on the same certified stone. MOH London lists it at $10,866. 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

1.23
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552995220
Dimensions6.78 × 6.83 × 4.29 mm
L/W Ratio1.01
Top View
6.78 mm6.83 mm1.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552995220
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 63.0%

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 6
Current: $10,866 CAD|Low: $3,825 CAD|High: $10,952 CAD|Avg: $6,356 CAD|+20.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$3,825 CAD
Retailer 7$5,380 CAD
Retailer 8$5,677 CAD
Retailer 3$6,786 CAD
Retailer 5$7,219 CAD
Retailer 2$7,447 CAD
Retailer 4$8,550 CAD
MOH London$10,866 CAD

29 data points across 8 retailers

8 retailers$6,786 CAD to $10,866 CAD

Retailer 1
-
$3,825 CAD
Price last confirmed 29 days ago
Retailer 2
-
$5,380 CAD
View
Price last confirmed 30 days ago
Retailer 3
-
$5,677 CAD
View
Price last confirmed 33 days ago
B
Retailer 4
-
$6,786 CAD
View
B+
Retailer 5
-
$7,219 CAD
View
B+
Retailer 6
-
$7,447 CAD
View
B
Retailer 7
-
$8,550 CAD
View
Most Expensive
B
MOH London
B60E4151F · Nov 4
$10,866 CAD
£6,126 GBP
View
7 more retailers have this diamond
Prices start from $6,786 CADSave up to $4,079 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+
1.23ct Round
$6,786 CAD