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Round|Lab Grown|IGI

1.23ct G VVS2 Round Lab Grown Diamond

ID • G/VVS2 • IGI LG830618964

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830618964

Diamond specifications and retailer prices

From $297 NZD
As of November 5, 2026
Save $2,083 NZD (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,380 NZD at Helzberg Diamonds · As of November 4, 2026
View at Helzberg Diamonds

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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG830618964 or 830618964. Listed at 22 retailers as of November 4, 2026, with prices from $297 to $2,380, a $2,083 spread on the same certified stone. Helzberg Diamonds lists it at $2,380. 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
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830618964
Dimensions6.83 × 6.89 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.83 mm6.89 mm1.23 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830618964
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°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 5
Current: $2,380 NZD|Low: $297 NZD|High: $2,380 NZD|Avg: $925 NZD
Helzberg Diamonds
Retailer 2
Retailer 3
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Retailer 22
November 5, 2026
Retailer 13$297 NZD
Retailer 7$345 NZD
Retailer 6$358 NZD
Retailer 3$382 NZD
Retailer 14$390 NZD
Retailer 21$658 NZD
Retailer 12$669 NZD
Retailer 16$674 NZD
Retailer 17$678 NZD
Retailer 8$680 NZD
Retailer 4$736 NZD
Retailer 5$825 NZD
Retailer 18$916 NZD
Retailer 20$930 NZD
Retailer 19$968 NZD
Retailer 2$1,187 NZD
Retailer 15$1,227 NZD
Retailer 9$1,251 NZD
Retailer 10$1,259 NZD
Retailer 11$1,324 NZD
Retailer 22$1,784 NZD
Helzberg Diamonds$2,380 NZD

14 data points across 22 retailers

22 retailers$297 NZD to $2,380 NZD

A
Cheapest Retailer
-
$297 NZD
A
Retailer 2
-
$345 NZD
View
Final sale: no returns
A
Retailer 3
-
$358 NZD
View
A
Retailer 4
-
$382 NZD
View
Retailer 5
-
$390 NZD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$658 NZD
View
Retailer 7
-
$669 NZD
View
Price last confirmed 7 days ago
A
Retailer 8
-
$674 NZD
View
A
Retailer 9
-
$678 NZD
View
A
Retailer 10
-
$680 NZD
View
B+
Retailer 11
-
$736 NZD
View
B+
Retailer 12
-
$825 NZD
View
B+
Retailer 13
-
$916 NZD
View
B+
Retailer 14
-
$930 NZD
View
B+
Retailer 15
-
$968 NZD
View
B+
Retailer 16
-
$1,187 NZD
View
B
Retailer 17
-
$1,227 NZD
View
B
Retailer 18
-
$1,251 NZD
View
B
Retailer 19
-
$1,259 NZD
View
B
Retailer 20
-
$1,324 NZD
View
B
Retailer 21
-
$1,784 NZD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMHOPMK · Nov 4
$2,380 NZD
$1,338 USD
View
21 more retailers have this diamond
Prices start from $297 NZDSave up to $2,083 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
$297 NZD