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Cushion|Lab Grown|IGI

1.50ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG526288479

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG526288479

Diamond specifications and retailer prices

From £172 GBP
$231 USD
As of October 30, 2026
Save £1,283 GBP (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,455 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG526288479 or 526288479. Listed at 16 retailers as of October 30, 2026, with prices from £172 to £1,455, a £1,283 spread on the same certified stone. Brilliant Earth lists it at £1,455. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526288479
Dimensions6.57 × 6.30 × 4.32 mm
L/W Ratio1.04
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
6.57 mm6.30 mm1.50 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526288479
Side View
Table 60.0%Crown 37.6°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 68.6%

Caratlytics Score

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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: £1,455 GBP|Low: £172 GBP|High: £1,455 GBP|Avg: £498 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 12£172 GBP
Retailer 10£192 GBP
Retailer 7£257 GBP
Retailer 5£311 GBP
Retailer 2£354 GBP
Retailer 4£389 GBP
Retailer 11£438 GBP
Retailer 6£466 GBP
Retailer 9£715 GBP
Retailer 3£751 GBP
Retailer 8£771 GBP
Brilliant Earth£1,455 GBP

44 data points across 12 retailers

16 retailers£172 GBP to £1,455 GBP

A
Cheapest Retailer
-
£172 GBP
$231 USD
Final sale: no returns
A
Retailer 2
-
£192 GBP
$257 USD
View
B+
Retailer 3
-
£257 GBP
$345 USD
View
A
Retailer 4
-
£311 GBP
€397 EUR
View
A
Retailer 5
-
£354 GBP
View
A
Retailer 6
-
£375 GBP
$502 USD
View
A
Retailer 7
-
£389 GBP
$521 USD
View
A
Retailer 8
-
£438 GBP
$587 USD
View
A
Retailer 9
-
£466 GBP
$624 USD
View
B+
Retailer 10
-
£657 GBP
$880 USD
View
B+
Retailer 11
-
£715 GBP
A$1,474 AUD
View
B
Retailer 12
-
£751 GBP
View
B
Retailer 13
-
£766 GBP
$1,027 USD
View
B+
Retailer 14
-
£771 GBP
View
B
Retailer 15
-
£908 GBP
$1,217 USD
View
Most Expensive
B
Brilliant Earth
10788644A · Oct 31
£1,455 GBP
$1,950 USD
View
15 more retailers have this diamond
Prices start from £172 GBPSave up to £1,283 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
£172 GBP