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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 $210 USD
As of November 3, 2026
Save $878 USD (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,088 USD 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 $210 to $1,088, a $878 spread on the same certified stone. MOH London lists it at $1,088. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $1,088 USD|Low: $187 USD|High: $1,146 USD|Avg: $500 USD|-3.8%
MOH London
Retailer 2
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Retailer 18
November 4, 2026
Retailer 4$188 USD
Retailer 5$210 USD
Retailer 18$218 USD
Retailer 8$242 USD
Retailer 10$242 USD
Retailer 17$315 USD
Retailer 14$401 USD
Retailer 11$418 USD
Retailer 12$428 USD
Retailer 3$470 USD
Retailer 16$480 USD
Retailer 13$567 USD
Retailer 2$751 USD
Retailer 9$778 USD
Retailer 15$781 USD
Retailer 6$802 USD
Retailer 7$810 USD
MOH London$1,088 USD

43 data points across 18 retailers

20 retailers$210 USD to $1,088 USD

Retailer 1
-
$188 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$210 USD
View
Final sale: no returns
Retailer 3
-
$218 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$242 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$242 USD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$315 USD
View
A
Retailer 7
-
$401 USD
View
A
Retailer 8
-
$418 USD
View
A
Retailer 9
-
$428 USD
View
B+
Retailer 10
-
$470 USD
View
B+
Retailer 11
-
$480 USD
View
B+
Retailer 12
-
$567 USD
View
B+
Retailer 13
-
$596 USD
View
B
Retailer 14
-
$751 USD
View
Retailer 15
-
$778 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$781 USD
View
B
Retailer 17
-
$802 USD
View
B
Retailer 18
-
$810 USD
View
Retailer 19
-
$810 USD
View
Price last confirmed 8 days ago
Most Expensive
B
MOH London
LG598394354 · Nov 1
$1,088 USD
£857 GBP
View
19 more retailers have this diamond
Prices start from $210 USDSave up to $878 USD

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
$210 USD