Heart|Lab Grown|IGI

1.51ct G VS1 Heart Lab Grown Diamond

VG • G/VS1 • IGI LG843608351

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843608351

Diamond specifications and retailer prices

From $477 USD
As of November 1, 2026
Save $648 USD (58%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,125 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG843608351 or 843608351. Listed at 6 retailers as of November 1, 2026, with prices from $477 to $1,125, a $648 spread on the same certified stone. MOH London lists it at $1,125. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843608351
Dimensions6.86 × 8.07 × 4.65 mm
L/W Ratio1.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.86 mm8.07 mm1.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843608351
Side View
Table 63.0%Crown 32.8°Girdle: THK-VTKPavilion 39.9°Culet: NoneDepth 57.6%

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 1
Current: $1,125 USD|Low: $468 USD|High: $1,130 USD|Avg: $695 USD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 4$477 USD
Retailer 5$483 USD
Retailer 2$524 USD
Retailer 3$608 USD
Retailer 6$955 USD
MOH London$1,125 USD

18 data points across 6 retailers

6 retailers$477 USD to $1,125 USD

A
Cheapest Retailer
-
$477 USD
A
Retailer 2
-
$483 USD
View
A
Retailer 3
-
$524 USD
£412 GBP
View
B+
Retailer 4
-
$608 USD
View
B
Retailer 5
-
$955 USD
View
Most Expensive
B
MOH London
LG843608351 · Nov 1
$1,125 USD
£886 GBP
View
5 more retailers have this diamond
Prices start from $477 USDSave up to $648 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
1.51ct Heart
$477 USD