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Round|Lab Grown|GIA

1.23ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 6452332073

Certificate GIA 6452332073

Diamond specifications and retailer prices

From $335 SGD
As of November 4, 2026
Save $1,148 SGD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,483 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6452332073. Listed at 17 retailers as of November 4, 2026, with prices from $335 to $1,483, a $1,148 spread on the same certified stone. MOH London lists it at $1,483. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6452332073
Dimensions6.89 × 6.85 × 4.25 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
6.89 mm6.85 mm1.23 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452332073
Side View
Table 55.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,483 SGD|Low: $335 SGD|High: $1,526 SGD|Avg: $749 SGD|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8$335 SGD
Retailer 13$409 SGD
Retailer 2$594 SGD
Retailer 11$619 SGD
Retailer 6$621 SGD
Retailer 9$627 SGD
Retailer 3$645 SGD
Retailer 5$681 SGD
Retailer 7$728 SGD
Retailer 12$745 SGD
Retailer 10$984 SGD
Retailer 4$996 SGD
MOH London$1,483 SGD

44 data points across 13 retailers

17 retailers$335 SGD to $1,483 SGD

Retailer 1
-
$301 SGD
Price last confirmed 27 days ago
A
Retailer 2
-
$335 SGD
View
Final sale: no returns
Retailer 3
-
$350 SGD
View
Price last confirmed 24 days ago
Retailer 4
-
$374 SGD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$409 SGD
View
B+
Retailer 6
-
$594 SGD
View
B+
Retailer 7
-
$619 SGD
View
B+
Retailer 8
-
$621 SGD
View
B+
Retailer 9
-
$627 SGD
View
Retailer 10
-
$645 SGD
View
Price last confirmed 16 days ago
Retailer 11
-
$681 SGD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$728 SGD
View
B+
Retailer 13
-
$745 SGD
View
B
Retailer 14
-
$984 SGD
View
Retailer 15
-
$996 SGD
View
Price last confirmed 27 days ago
Retailer 16
-
$1,202 SGD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
6452332073 · Nov 5
$1,483 SGD
£914 GBP
View
16 more retailers have this diamond
Prices start from $335 SGDSave up to $1,148 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.

A
1.23ct Round
$335 SGD