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Cushion|Lab Grown|IGI

1.51ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG539230636

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG539230636

Diamond specifications and retailer prices

From $426 AUD
As of November 4, 2026
Save $1,467 AUD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,894 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct 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 top-tier cut grade and certified by IGI LG539230636 or 539230636. Listed at 12 retailers as of November 1, 2026, with prices from $426 to $1,894, a $1,467 spread on the same certified stone. MOH London lists it at $1,894. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539230636
Dimensions6.64 × 6.29 × 4.26 mm
L/W Ratio1.06
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
6.64 mm6.29 mm1.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG539230636
Side View
Table 64.5%Crown 35.4°Girdle: STK-THKPavilion 36.7°Culet: NoneDepth 67.7%

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 4
Current: $1,894 AUD|Low: $305 AUD|High: $1,917 AUD|Avg: $1,023 AUD
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
November 4, 2026
Retailer 11$426 AUD
Retailer 7$473 AUD
Retailer 3$620 AUD
Retailer 2$629 AUD
Retailer 4$731 AUD
Retailer 8$734 AUD
Retailer 9$785 AUD
Retailer 6$814 AUD
Retailer 12$847 AUD
Retailer 5$1,540 AUD
Retailer 13$1,715 AUD
Retailer 10$1,815 AUD
MOH London$1,894 AUD

39 data points across 13 retailers

12 retailers$426 AUD to $1,894 AUD

A
Cheapest Retailer
-
$426 AUD
Final sale: no returns
Retailer 2
-
$473 AUD
View
Price last confirmed 10 days ago
Retailer 3
-
$620 AUD
View
Price last confirmed 27 days ago
A
Retailer 4
-
$629 AUD
View
A
Retailer 5
-
$731 AUD
View
A
Retailer 6
-
$734 AUD
View
B+
Retailer 7
-
$785 AUD
View
A
Retailer 8
-
$814 AUD
View
A
Retailer 9
-
$847 AUD
View
B
Retailer 10
-
$1,540 AUD
View
Retailer 11
-
$1,815 AUD
View
Price last confirmed 28 days ago
Most Expensive
B
MOH London
LG539230636 · Nov 1
$1,894 AUD
£1,046 GBP
View
11 more retailers have this diamond
Prices start from $426 AUDSave up to $1,467 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 Cushion
$426 AUD