CaratHunter
Plans
Heart|Lab Grown|IGI

1.23ct G VVS2 Heart Lab Grown Diamond

EX • G/VVS2 • IGI LG598394354

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG598394354

Diamond specifications and retailer prices

From $299 AUD
As of November 3, 2026
Save $1,252 AUD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,551 AUD at MOH London · As of November 1, 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 G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG598394354 or 598394354. Listed at 20 retailers as of November 1, 2026, with prices from $299 to $1,551, a $1,252 spread on the same certified stone. MOH London lists it at $1,551. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598394354
Dimensions6.83 × 7.32 × 4.33 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
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
6.83 mm7.32 mm1.23 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598394354
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.2%

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: $1,551 AUD|Low: $267 AUD|High: $1,633 AUD|Avg: $712 AUD|-3.8%
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
Retailer 16
Retailer 17
Retailer 18
November 4, 2026
Retailer 4$268 AUD
Retailer 5$299 AUD
Retailer 18$311 AUD
Retailer 8$345 AUD
Retailer 10$345 AUD
Retailer 17$449 AUD
Retailer 14$572 AUD
Retailer 11$596 AUD
Retailer 12$610 AUD
Retailer 3$670 AUD
Retailer 16$684 AUD
Retailer 13$808 AUD
Retailer 2$1,071 AUD
Retailer 9$1,109 AUD
Retailer 15$1,113 AUD
Retailer 6$1,143 AUD
Retailer 7$1,155 AUD
MOH London$1,551 AUD

43 data points across 18 retailers

20 retailers$299 AUD to $1,551 AUD

Retailer 1
-
$268 AUD
Price last confirmed 9 days ago
A
Retailer 2
-
$299 AUD
View
Final sale: no returns
Retailer 3
-
$311 AUD
View
Price last confirmed 8 days ago
Retailer 4
-
$345 AUD
View
Price last confirmed 11 days ago
Retailer 5
-
$345 AUD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$449 AUD
View
A
Retailer 7
-
$572 AUD
View
A
Retailer 8
-
$596 AUD
View
A
Retailer 9
-
$610 AUD
View
B+
Retailer 10
-
$670 AUD
View
B+
Retailer 11
-
$684 AUD
View
B+
Retailer 12
-
$808 AUD
View
B+
Retailer 13
-
$850 AUD
View
B
Retailer 14
-
$1,071 AUD
View
Retailer 15
-
$1,109 AUD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$1,113 AUD
View
B
Retailer 17
-
$1,143 AUD
View
B
Retailer 18
-
$1,155 AUD
View
Retailer 19
-
$1,155 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
MOH London
LG598394354 · Nov 1
$1,551 AUD
£857 GBP
View
19 more retailers have this diamond
Prices start from $299 AUDSave up to $1,252 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 Heart
$299 AUD