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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 $680 AUD
As of November 4, 2026
Save $919 AUD (57%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,599 AUD at MOH London · As of November 5, 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 4, 2026, with prices from $680 to $1,599, a $919 spread on the same certified stone. MOH London lists it at $1,599. 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
Colour
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 4
Current: $1,599 AUD|Low: $667 AUD|High: $1,611 AUD|Avg: $990 AUD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4$680 AUD
Retailer 5$689 AUD
Retailer 2$738 AUD
Retailer 3$867 AUD
Retailer 6$1,360 AUD
MOH London$1,599 AUD

21 data points across 6 retailers

6 retailers$680 AUD to $1,599 AUD

A
Cheapest Retailer
-
$680 AUD
A
Retailer 2
-
$689 AUD
View
A
Retailer 3
-
$738 AUD
View
B+
Retailer 4
-
$867 AUD
View
B
Retailer 5
-
$1,360 AUD
View
Most Expensive
B
MOH London
LG843608351 · Nov 5
$1,599 AUD
£883 GBP
View
5 more retailers have this diamond
Prices start from $680 AUDSave up to $919 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
1.51ct Heart
$680 AUD