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Cushion|Natural|GIA

1.50ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 6542339967

Certificate GIA 6542339967

Diamond specifications and retailer prices

From £2,875 GBP
HK$30,100 HKD
As of October 31, 2026
Save £3,769 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,644 GBP at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542339967. Listed at 14 retailers as of October 28, 2026, with prices from £2,875 to £6,644, a £3,769 spread on the same certified stone. Queensmith lists it at £6,644. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542339967
Dimensions7.77 × 5.96 × 4.06 mm
L/W Ratio1.30
Top View
7.77 mm5.96 mm1.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542339967
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.1%

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: Oct 31
Current: £6,644 GBP|Low: £2,856 GBP|High: £6,692 GBP|Avg: £4,204 GBP|+1.7%
Queensmith
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 2£2,875 GBP
Retailer 6£3,099 GBP
Retailer 4£3,393 GBP
Retailer 11£3,510 GBP
Retailer 10£3,662 GBP
Retailer 7£3,796 GBP
Retailer 9£3,803 GBP
Retailer 12£3,836 GBP
Retailer 3£3,917 GBP
Retailer 5£4,304 GBP
Retailer 8£6,090 GBP
Queensmith£6,644 GBP

32 data points across 12 retailers

14 retailers£2,875 GBP to £6,644 GBP

A
Cheapest Retailer
-
£2,875 GBP
HK$30,100 HKD
A
Retailer 2
-
£3,099 GBP
₹395,452 INR
View
A
Retailer 3
-
£3,393 GBP
SGD 6,144 SGD
View
A
Retailer 4
-
£3,510 GBP
$4,703 USD
View
Final sale: no returns
A
Retailer 5
-
£3,529 GBP
$4,728 USD
View
A
Retailer 6
-
£3,662 GBP
SGD 6,631 SGD
View
A
Retailer 7
-
£3,796 GBP
View
A
Retailer 8
-
£3,803 GBP
$5,096 USD
View
A
Retailer 9
-
£3,836 GBP
$5,140 USD
View
A
Retailer 10
-
£3,917 GBP
$5,248 USD
View
A
Retailer 11
-
£4,171 GBP
A$8,598 AUD
View
A
Retailer 12
-
£4,304 GBP
€5,492 EUR
View
B+
Retailer 13
-
£6,090 GBP
View
Most Expensive
B
Queensmith
6542339967 · Oct 28
£6,644 GBP
View
13 more retailers have this diamond
Prices start from £2,875 GBPSave up to £3,769 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
£2,875 GBP