Cushion|Lab Grown|GIA

1.50ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • GIA 2447867887

Certificate GIA 2447867887

Diamond specifications and retailer prices

From £246 GBP
$330 USD
As of October 25, 2026
Save £743 GBP (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £990 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 stated by the retailer rather than the lab and certified by GIA 2447867887. Listed at 10 retailers as of October 25, 2026, with prices from £246 to £990, a £743 spread on the same certified stone. MOH London lists it at £990. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.48°
Pavilion angle50.15°
OriginLab Grown
Grading LabGIA
CertificateGIA 2447867887
Dimensions7.13 × 6.01 × 3.97 mm
L/W Ratio1.19
Top View
7.13 mm6.01 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2447867887
Side View
Table 65.0%Crown 33.48°Girdle: STK-VTKPavilion 50.15°Culet: NoneDepth 66.2%

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 25
Current: £990 GBP|Low: £246 GBP|High: £1,042 GBP|Avg: £499 GBP|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8£246 GBP
Retailer 4£332 GBP
Retailer 7£332 GBP
Retailer 2£391 GBP
Retailer 3£427 GBP
Retailer 6£435 GBP
Retailer 5£498 GBP
Retailer 9£627 GBP
MOH London£990 GBP

41 data points across 9 retailers

10 retailers£246 GBP to £990 GBP

A
Cheapest Retailer
-
£246 GBP
$330 USD
A
Retailer 2
-
£332 GBP
$445 USD
View
B+
Retailer 3
-
£332 GBP
$445 USD
View
A
Retailer 4
-
£391 GBP
€499 EUR
View
A
Retailer 5
-
£427 GBP
View
B+
Retailer 6
-
£435 GBP
$583 USD
View
B+
Retailer 7
-
£498 GBP
$667 USD
View
B+
Retailer 8
-
£627 GBP
$840 USD
View
Retailer 9
-
£811 GBP
$1,087 USD
View
Price last confirmed 111 days ago
Most Expensive
B
MOH London
2447867887 · Oct 25
£990 GBP
View
9 more retailers have this diamond
Prices start from £246 GBPSave up to £743 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
£246 GBP