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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 $466 NZD
As of November 4, 2026
Save $1,599 NZD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,065 NZD 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 $466 to $2,065, a $1,599 spread on the same certified stone. MOH London lists it at $2,065. 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

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: Nov 4
Current: $2,065 NZD|Low: $466 NZD|High: $2,126 NZD|Avg: $1,044 NZD|-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$466 NZD
Retailer 13$569 NZD
Retailer 6$827 NZD
Retailer 11$863 NZD
Retailer 7$865 NZD
Retailer 9$873 NZD
Retailer 3$898 NZD
Retailer 5$948 NZD
Retailer 2$1,014 NZD
Retailer 12$1,037 NZD
Retailer 10$1,370 NZD
Retailer 4$1,388 NZD
MOH London$2,065 NZD

43 data points across 13 retailers

17 retailers$466 NZD to $2,065 NZD

Retailer 1
-
$420 NZD
Price last confirmed 27 days ago
A
Retailer 2
-
$466 NZD
View
Final sale: no returns
Retailer 3
-
$487 NZD
View
Price last confirmed 24 days ago
Retailer 4
-
$521 NZD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$569 NZD
View
B+
Retailer 6
-
$827 NZD
View
B+
Retailer 7
-
$863 NZD
View
B+
Retailer 8
-
$865 NZD
View
B+
Retailer 9
-
$873 NZD
View
Retailer 10
-
$898 NZD
View
Price last confirmed 16 days ago
Retailer 11
-
$948 NZD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$1,014 NZD
View
B+
Retailer 13
-
$1,037 NZD
View
B
Retailer 14
-
$1,370 NZD
View
Retailer 15
-
$1,388 NZD
View
Price last confirmed 27 days ago
Retailer 16
-
$1,674 NZD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
6452332073 · Nov 5
$2,065 NZD
£914 GBP
View
16 more retailers have this diamond
Prices start from $466 NZDSave up to $1,599 NZD

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
$466 NZD