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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 $210 USD
As of November 6, 2026
Save $877 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,087 USD at MOH London · As of November 2, 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 10 retailers as of November 2, 2026, with prices from $210 to $1,087, a $877 spread on the same certified stone. MOH London lists it at $1,087. 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
Color
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: $1,087 USD|Low: $210 USD|High: $1,101 USD|Avg: $539 USD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7$210 USD
Retailer 4$233 USD
Retailer 2$296 USD
Retailer 6$408 USD
Retailer 3$417 USD
Retailer 8$566 USD
Retailer 5$875 USD
MOH London$1,087 USD

43 data points across 8 retailers

10 retailers$210 USD to $1,087 USD

A
Cheapest Retailer
-
$210 USD
Final sale: no returns
Retailer 2
-
$233 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$296 USD
View
B+
Retailer 4
-
$408 USD
View
A
Retailer 5
-
$417 USD
View
B+
Retailer 6
-
$450 USD
View
B+
Retailer 7
-
$566 USD
View
B
Retailer 8
-
$801 USD
View
Retailer 9
-
$875 USD
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
LG560215971 · Nov 2
$1,087 USD
£856 GBP
View
9 more retailers have this diamond
Prices start from $210 USDSave up to $877 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 Cushion
$210 USD