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Cushion|Lab Grown|IGI

1.50ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG532240203

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG532240203

Diamond specifications and retailer prices

From £207 GBP
$278 USD
As of October 30, 2026
Save £714 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £921 GBP at MOH London · As of October 25, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532240203 or 532240203. Listed at 13 retailers as of October 25, 2026, with prices from £207 to £921, a £714 spread on the same certified stone. MOH London lists it at £921. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532240203
Dimensions7.80 × 6.28 × 4.09 mm
L/W Ratio1.24
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
7.80 mm6.28 mm1.50 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532240203
Side View
Table 62.0%Crown 31.7°Girdle: MED-THKPavilion 38.1°Culet: NoneDepth 65.1%

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: Oct 30
Current: £921 GBP|Low: £148 GBP|High: £963 GBP|Avg: £477 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 11£207 GBP
Retailer 10£230 GBP
Retailer 6£256 GBP
Retailer 9£310 GBP
Retailer 3£376 GBP
Retailer 7£415 GBP
Retailer 12£416 GBP
Retailer 2£433 GBP
Retailer 8£577 GBP
Retailer 4£777 GBP
Retailer 5£843 GBP
MOH London£921 GBP

42 data points across 12 retailers

13 retailers£207 GBP to £921 GBP

A
Cheapest Retailer
-
£207 GBP
$278 USD
Final sale: no returns
A
Retailer 2
-
£230 GBP
$308 USD
View
A
Retailer 3
-
£256 GBP
View
B+
Retailer 4
-
£310 GBP
$415 USD
View
A
Retailer 5
-
£376 GBP
$504 USD
View
B+
Retailer 6
-
£415 GBP
€530 EUR
View
B+
Retailer 7
-
£416 GBP
$557 USD
View
A
Retailer 8
-
£433 GBP
View
B+
Retailer 9
-
£577 GBP
$773 USD
View
B
Retailer 10
-
£777 GBP
$1,041 USD
View
Retailer 11
-
£800 GBP
$1,072 USD
View
Price last confirmed 83 days ago
B
Retailer 12
-
£843 GBP
$1,130 USD
View
Most Expensive
B
MOH London
LG532240203 · Oct 25
£921 GBP
View
12 more retailers have this diamond
Prices start from £207 GBPSave up to £714 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
£207 GBP