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Round|Lab Grown|IGI

1.23ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG592351769

Shape and cutting style on the report: Round brilliant

Certificate IGI LG592351769

Diamond specifications and retailer prices

From $378 USD
As of November 1, 2026
Save $648 USD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,026 USD at MOH London · As of November 1, 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 G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG592351769 or 592351769. Listed at 10 retailers as of November 1, 2026, with prices from $378 to $1,026, a $648 spread on the same certified stone. MOH London lists it at $1,026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592351769
Dimensions6.85 × 6.84 × 4.23 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.85 mm6.84 mm1.23 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592351769
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
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 1
Current: $1,026 USD|Low: $364 USD|High: $1,039 USD|Avg: $565 USD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 8$370 USD
Retailer 5$378 USD
Retailer 3$389 USD
Retailer 9$391 USD
Retailer 6$453 USD
Retailer 4$535 USD
Retailer 2$595 USD
Retailer 7$745 USD
Retailer 10$760 USD
MOH London$1,026 USD

32 data points across 10 retailers

10 retailers$378 USD to $1,026 USD

Retailer 1
-
$220 USD
Price last confirmed 27 days ago
A
Retailer 2
-
$378 USD
View
A
Retailer 3
-
$389 USD
View
A
Retailer 4
-
$391 USD
View
B+
Retailer 5
-
$453 USD
View
B+
Retailer 6
-
$535 USD
View
B+
Retailer 7
-
$595 USD
View
B
Retailer 8
-
$745 USD
View
B
Retailer 9
-
$760 USD
View
Most Expensive
B
MOH London
LG592351769 · Nov 1
$1,026 USD
£808 GBP
View
9 more retailers have this diamond
Prices start from $378 USDSave up to $648 USD

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
$378 USD