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Cushion|Lab Grown|IGI

1.51ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG560215971

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG560215971

Diamond specifications and retailer prices

From $306 AUD
As of November 6, 2026
Save $1,269 AUD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,575 AUD at MOH London · As of November 7, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG560215971 or 560215971. Listed at 12 retailers as of November 6, 2026, with prices from $306 to $1,575, a $1,269 spread on the same certified stone. MOH London lists it at $1,575. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle28.9°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560215971
Dimensions6.52 × 6.21 × 4.30 mm
L/W Ratio1.05
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
6.52 mm6.21 mm1.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG560215971
Side View
Table 58.0%Crown 28.9°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 69.2%

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 6
Current: $1,575 AUD|Low: $306 AUD|High: $1,603 AUD|Avg: $785 AUD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$306 AUD
Retailer 6$339 AUD
Retailer 4$434 AUD
Retailer 8$594 AUD
Retailer 5$605 AUD
Retailer 2$777 AUD
Retailer 10$824 AUD
Retailer 3$1,253 AUD
Retailer 7$1,273 AUD
MOH London$1,575 AUD

43 data points across 10 retailers

12 retailers$306 AUD to $1,575 AUD

A
Cheapest Retailer
-
$306 AUD
Final sale: no returns
A
Retailer 2
-
$339 AUD
View
A
Retailer 3
-
$434 AUD
View
B+
Retailer 4
-
$594 AUD
View
A
Retailer 5
-
$605 AUD
View
B+
Retailer 6
-
$655 AUD
View
B+
Retailer 7
-
$777 AUD
View
B+
Retailer 8
-
$824 AUD
View
B
Retailer 9
-
$1,166 AUD
View
B
Retailer 10
-
$1,253 AUD
View
Retailer 11
-
$1,273 AUD
View
Price last confirmed 19 days ago
Most Expensive
B
MOH London
LG560215971 · Nov 7
$1,575 AUD
£852 GBP
View
11 more retailers have this diamond
Prices start from $306 AUDSave up to $1,269 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
$306 AUD