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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 $524 AUD
$368 USD
As of October 30, 2026
Save $1,036 AUD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,560 AUD 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 $524 to $1,560, a $1,036 spread on the same certified stone. MOH London lists it at $1,560. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,560 AUD|Low: $512 AUD|High: $1,569 AUD|Avg: $1,017 AUD|+2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 5$524 AUD
Retailer 4$651 AUD
Retailer 2$719 AUD
Retailer 3$1,079 AUD
Retailer 6$1,304 AUD
Retailer 7$1,319 AUD
MOH London$1,560 AUD

39 data points across 7 retailers

7 retailers$524 AUD to $1,560 AUD

B+
Cheapest Retailer
-
$524 AUD
$368 USD
B+
Retailer 2
-
$651 AUD
$457 USD
View
B+
Retailer 3
-
$719 AUD
£398 GBP
View
B
Retailer 4
-
$1,079 AUD
View
B
Retailer 5
-
$1,319 AUD
$927 USD
View
B
Retailer 6
-
$1,331 AUD
$935 USD
View
Most Expensive
B
MOH London
LG833640983 · Oct 29
$1,560 AUD
£863 GBP
View
6 more retailers have this diamond
Prices start from $524 AUDSave up to $1,036 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.

B+
1.23ct Heart
$524 AUD