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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6233946339

Certificate GIA 6233946339

Diamond specifications and retailer prices

From £3,477 GBP
HK$36,400 HKD
As of November 1, 2026
Save £3,491 GBP (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £6,969 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural 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 6233946339. Listed at 10 retailers as of November 1, 2026, with prices from £3,477 to £6,969, a £3,491 spread on the same certified stone. MOH London lists it at £6,969. 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
Pavilion angle35.81°
OriginNatural
Grading LabGIA
CertificateGIA 6233946339
Dimensions7.60 × 5.88 × 4.07 mm
L/W Ratio1.29
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.60 mm5.88 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233946339
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 35.81°Culet: NoneDepth 69.3%

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 1
Current: £6,969 GBP|Low: £3,477 GBP|High: £7,775 GBP|Avg: £4,889 GBP|-10.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2£3,477 GBP
Retailer 4£4,001 GBP
Retailer 8£4,022 GBP
Retailer 5£4,157 GBP
Retailer 3£4,426 GBP
Retailer 9£4,877 GBP
Retailer 7£4,962 GBP
Retailer 6£5,238 GBP
MOH London£6,969 GBP

34 data points across 9 retailers

10 retailers£3,477 GBP to £6,969 GBP

A
Cheapest Retailer
-
£3,477 GBP
HK$36,400 HKD
A
Retailer 2
-
£4,001 GBP
€5,106 EUR
View
A
Retailer 3
-
£4,022 GBP
SGD 7,282 SGD
View
A
Retailer 4
-
£4,157 GBP
$5,570 USD
View
A
Retailer 5
-
£4,426 GBP
View
B+
Retailer 6
-
£4,877 GBP
$6,535 USD
View
Final sale: no returns
B+
Retailer 7
-
£4,962 GBP
$6,649 USD
View
B+
Retailer 8
-
£5,195 GBP
A$10,708 AUD
View
B+
Retailer 9
-
£5,238 GBP
€6,684 EUR
View
Most Expensive
B+
MOH London
8A896A3F4 · Nov 1
£6,969 GBP
View
9 more retailers have this diamond
Prices start from £3,477 GBPSave up to £3,491 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
£3,477 GBP