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Heart|Lab Grown|IGI

1.23ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG833640983

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG833640983

Diamond specifications and retailer prices

From $653 NZD
$368 USD
As of October 30, 2026
Save $1,292 NZD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,945 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG833640983 or 833640983. Listed at 7 retailers as of October 29, 2026, with prices from $653 to $1,945, a $1,292 spread on the same certified stone. MOH London lists it at $1,945. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833640983
Dimensions7.47 × 6.62 × 4.32 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.47 mm6.62 mm1.23 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833640983
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 57.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,945 NZD|Low: $639 NZD|High: $1,956 NZD|Avg: $1,267 NZD|+2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5$653 NZD
Retailer 4$811 NZD
Retailer 2$895 NZD
Retailer 3$1,345 NZD
Retailer 6$1,625 NZD
Retailer 7$1,645 NZD
MOH London$1,945 NZD

38 data points across 7 retailers

7 retailers$653 NZD to $1,945 NZD

B+
Cheapest Retailer
-
$653 NZD
$368 USD
B+
Retailer 2
-
$811 NZD
$457 USD
View
B+
Retailer 3
-
$895 NZD
£397 GBP
View
B
Retailer 4
-
$1,345 NZD
A$1,166 AUD
View
B
Retailer 5
-
$1,645 NZD
$927 USD
View
B
Retailer 6
-
$1,659 NZD
$935 USD
View
Most Expensive
B
MOH London
LG833640983 · Oct 29
$1,945 NZD
£863 GBP
View
6 more retailers have this diamond
Prices start from $653 NZDSave up to $1,292 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.

B+
1.23ct Heart
$653 NZD