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1.23ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG818686333

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686333

Diamond specifications and retailer prices

From $363 NZD
As of November 3, 2026
Save $1,744 NZD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,107 NZD 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818686333 or 818686333. Listed at 16 retailers as of November 1, 2026, with prices from $363 to $2,107, a $1,744 spread on the same certified stone. MOH London lists it at $2,107. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686333
Dimensions6.93 × 6.91 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.93 mm6.91 mm1.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686333
Side View
Table 56.0%Crown 33.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

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 3
Current: $2,107 NZD|Low: $363 NZD|High: $2,132 NZD|Avg: $1,067 NZD|-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
November 3, 2026
Retailer 9$363 NZD
Retailer 12$450 NZD
Retailer 4$754 NZD
Retailer 7$777 NZD
Retailer 13$781 NZD
Retailer 2$823 NZD
Retailer 11$933 NZD
Retailer 10$1,085 NZD
Retailer 8$1,101 NZD
Retailer 6$1,173 NZD
Retailer 5$1,543 NZD
Retailer 3$1,627 NZD
MOH London$2,107 NZD

27 data points across 13 retailers

16 retailers$363 NZD to $2,107 NZD

A
Cheapest Retailer
-
$363 NZD
A
Retailer 2
-
$421 NZD
View
Retailer 3
-
$450 NZD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$450 NZD
View
A
Retailer 5
-
$754 NZD
View
A
Retailer 6
-
$777 NZD
View
A
Retailer 7
-
$781 NZD
View
A
Retailer 8
-
$823 NZD
View
B+
Retailer 9
-
$933 NZD
View
B+
Retailer 10
-
$1,085 NZD
View
Retailer 11
-
$1,101 NZD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$1,173 NZD
View
B
Retailer 13
-
$1,449 NZD
View
B
Retailer 14
-
$1,543 NZD
View
B
Retailer 15
-
$1,661 NZD
View
Most Expensive
B
MOH London
LG818686333 · Nov 1
$2,107 NZD
£933 GBP
View
15 more retailers have this diamond
Prices start from $363 NZDSave up to $1,744 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
$363 NZD