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Cushion|Lab Grown|IGI

1.51ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG840624145

Certificate IGI LG840624145

Diamond specifications and retailer prices

From $639 USD
£503 GBP
As of November 2, 2026
Save $1,951 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,590 USD at MOH London · As of November 3, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840624145 or 840624145. Listed at 5 retailers as of November 2, 2026, with prices from $639 to $2,590, a $1,951 spread on the same certified stone. MOH London lists it at $2,590. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG840624145
Dimensions8.54 × 5.90 × 3.76 mm
L/W Ratio1.45
Top View
8.54 mm5.90 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840624145
Side View
Table 57.0%CrownGirdle: ThinPavilionCulet: NoneDepth 63.7%

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 2
Current: $2,590 USD|Low: $639 USD|High: $2,590 USD|Avg: $1,515 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 5$639 USD
Retailer 3$1,033 USD
Retailer 2$2,018 USD
Retailer 4$2,174 USD
MOH London$2,590 USD

2 data points across 5 retailers

5 retailers$639 USD to $2,590 USD

A
Cheapest Retailer
-
$639 USD
£503 GBP
A
Retailer 2
-
$1,033 USD
£813 GBP
View
B+
Retailer 3
-
$2,018 USD
SGD 2,727 SGD
View
B+
Retailer 4
-
$2,174 USD
View
Most Expensive
B
MOH London
LG840624145 · Nov 3
$2,590 USD
£2,039 GBP
View
4 more retailers have this diamond
Prices start from $639 USDSave up to $1,951 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
$639 USD