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Round|Lab Grown|IGI

1.23ct H VS2 Round Lab Grown Diamond

EX • H/VS2 • IGI LG781609788

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781609788

Diamond specifications and retailer prices

From $285 AUD
As of November 3, 2026
Save $1,366 AUD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,651 AUD at MOH London · As of November 2, 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 H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781609788 or 781609788. Listed at 17 retailers as of November 2, 2026, with prices from $285 to $1,651, a $1,366 spread on the same certified stone. MOH London lists it at $1,651. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781609788
Dimensions6.82 × 6.84 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.82 mm6.84 mm1.23 ctH / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781609788
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.7%

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 3
Current: $1,651 AUD|Low: $186 AUD|High: $1,671 AUD|Avg: $811 AUD|-1.1%
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
Retailer 14
Retailer 15
November 4, 2026
Retailer 6$186 AUD
Retailer 11$285 AUD
Retailer 13$354 AUD
Retailer 5$611 AUD
Retailer 14$613 AUD
Retailer 4$620 AUD
Retailer 9$647 AUD
Retailer 2$680 AUD
Retailer 15$704 AUD
Retailer 12$816 AUD
Retailer 8$1,138 AUD
Retailer 7$1,211 AUD
Retailer 3$1,270 AUD
Retailer 10$1,375 AUD
MOH London$1,651 AUD

27 data points across 15 retailers

17 retailers$285 AUD to $1,651 AUD

A
Cheapest Retailer
-
$285 AUD
A
Retailer 2
-
$331 AUD
View
Retailer 3
-
$354 AUD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$354 AUD
View
A
Retailer 5
-
$613 AUD
View
A
Retailer 6
-
$620 AUD
View
B+
Retailer 7
-
$647 AUD
View
B+
Retailer 8
-
$680 AUD
View
B+
Retailer 9
-
$704 AUD
View
B+
Retailer 10
-
$816 AUD
View
B
Retailer 11
-
$918 AUD
View
B
Retailer 12
-
$1,135 AUD
View
B
Retailer 13
-
$1,138 AUD
View
B
Retailer 14
-
$1,211 AUD
View
B
Retailer 15
-
$1,296 AUD
View
B
Retailer 16
-
$1,375 AUD
View
Most Expensive
B
MOH London
LG781609788 · Nov 2
$1,651 AUD
£908 GBP
View
16 more retailers have this diamond
Prices start from $285 AUDSave up to $1,366 AUD

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
$285 AUD