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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 $6,206 SGD
As of November 6, 2026
Save $3,731 SGD (38%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,937 SGD 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 $6,206 to $9,937, a $3,731 spread on the same certified stone. MOH London lists it at $9,937. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $9,937 SGD|Low: $3,499 SGD|High: $10,017 SGD|Avg: $5,813 SGD|+20.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$3,499 SGD
Retailer 7$4,920 SGD
Retailer 8$5,192 SGD
Retailer 3$6,206 SGD
Retailer 5$6,602 SGD
Retailer 2$6,811 SGD
Retailer 4$7,820 SGD
MOH London$9,937 SGD

29 data points across 8 retailers

8 retailers$6,206 SGD to $9,937 SGD

Retailer 1
-
$3,499 SGD
Price last confirmed 29 days ago
Retailer 2
-
$4,920 SGD
View
Price last confirmed 30 days ago
Retailer 3
-
$5,192 SGD
View
Price last confirmed 33 days ago
B
Retailer 4
-
$6,206 SGD
View
B+
Retailer 5
-
$6,602 SGD
View
B+
Retailer 6
-
$6,811 SGD
View
B
Retailer 7
-
$7,820 SGD
View
Most Expensive
B
MOH London
B60E4151F · Nov 4
$9,937 SGD
£6,126 GBP
View
7 more retailers have this diamond
Prices start from $6,206 SGDSave up to $3,731 SGD

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
$6,206 SGD