CaratHunter
Plans
Cushion|Lab Grown|IGI

1.50ct F SI2 Cushion Lab Grown Diamond

ID • F/SI2 • IGI LG523296231

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG523296231

Diamond specifications and retailer prices

From £168 GBP
As of November 6, 2026
Save £707 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £875 GBP at MOH London · As of November 5, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523296231 or 523296231. Listed at 9 retailers as of November 5, 2026, with prices from £168 to £875, a £707 spread on the same certified stone. MOH London lists it at £875. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.1°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523296231
Dimensions7.96 × 5.85 × 3.89 mm
L/W Ratio1.36
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
7.96 mm5.85 mm1.50 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG523296231
Side View
Table 61.5%Crown 36.1°Girdle: MED-THKPavilion 31.3°Culet: NoneDepth 66.5%

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 6
Current: £875 GBP|Low: £168 GBP|High: £887 GBP|Avg: £388 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7£168 GBP
Retailer 6£188 GBP
Retailer 3£238 GBP
Retailer 8£254 GBP
Retailer 2£305 GBP
Retailer 4£341 GBP
Retailer 9£379 GBP
Retailer 5£643 GBP
MOH London£875 GBP

44 data points across 9 retailers

9 retailers£168 GBP to £875 GBP

A
Cheapest Retailer
-
£168 GBP
Final sale: no returns
Retailer 2
-
£188 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
£238 GBP
View
B+
Retailer 4
-
£254 GBP
View
A
Retailer 5
-
£305 GBP
View
A
Retailer 6
-
£341 GBP
View
A
Retailer 7
-
£379 GBP
View
Retailer 8
-
£643 GBP
View
Price last confirmed 16 days ago
Most Expensive
B
MOH London
LG523296231 · Nov 5
£875 GBP
View
8 more retailers have this diamond
Prices start from £168 GBPSave up to £707 GBP

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
£168 GBP