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Cushion|Lab Grown|IGI

1.50ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG551211486

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG551211486

Diamond specifications and retailer prices

From $537 AUD
As of November 3, 2026
Save $1,043 AUD (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,580 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG551211486 or 551211486. Listed at 5 retailers as of November 2, 2026, with prices from $537 to $1,580, a $1,043 spread on the same certified stone. MOH London lists it at $1,580. 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

1.50
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551211486
Dimensions6.42 × 6.36 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.42 mm6.36 mm1.50 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551211486
Side View
Table 62.0%Crown 34°Girdle: THK-ETKPavilion 40.1°Culet: NoneDepth 71.1%

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: $1,580 AUD|Low: $537 AUD|High: $1,599 AUD|Avg: $1,012 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$537 AUD
Retailer 2$620 AUD
Retailer 6$677 AUD
Retailer 3$828 AUD
Retailer 7$1,333 AUD
Retailer 4$1,511 AUD
MOH London$1,580 AUD

11 data points across 7 retailers

5 retailers$537 AUD to $1,580 AUD

A
Cheapest Retailer
-
$537 AUD
B
Retailer 2
-
$620 AUD
View
B+
Retailer 3
-
$828 AUD
View
B
Retailer 4
-
$1,511 AUD
View
Most Expensive
B
MOH London
LG551211486 · Nov 2
$1,580 AUD
£873 GBP
View
4 more retailers have this diamond
Prices start from $537 AUDSave up to $1,043 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
1.50ct Cushion
$537 AUD