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Cushion|Natural|GIA

1.50ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 2558095014

Certificate GIA 2558095014

Diamond specifications and retailer prices

From £2,668 GBP
As of November 6, 2026
Save £2,938 GBP (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,424 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 E 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 2558095014. Listed at 14 retailers as of November 4, 2026, with a 110% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558095014
Dimensions8.54 × 5.22 × 3.61 mm
L/W Ratio1.64
Top View
8.54 mm5.22 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558095014
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.2%

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 6
Current: £6,424 GBP|Low: £2,649 GBP|High: £6,499 GBP|Avg: £3,858 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
November 6, 2026
Retailer 10£2,668 GBP
Retailer 2£2,844 GBP
Retailer 8£3,166 GBP
Retailer 11£3,258 GBP
Retailer 6£3,396 GBP
Retailer 7£3,476 GBP
Retailer 3£3,530 GBP
Retailer 12£3,601 GBP
Retailer 4£3,642 GBP
Retailer 5£3,972 GBP
Retailer 9£5,606 GBP
Queensmith£6,424 GBP

28 data points across 12 retailers

14 retailers£2,668 GBP to £5,606 GBP

A
Cheapest Retailer
-
£2,668 GBP
A
Retailer 2
-
£2,844 GBP
View
A
Retailer 3
-
£3,166 GBP
View
A
Retailer 4
-
£3,258 GBP
View
Final sale: no returns
A
Retailer 5
-
£3,273 GBP
View
A
Retailer 6
-
£3,396 GBP
View
A
Retailer 7
-
£3,476 GBP
View
Retailer 8
-
£3,530 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£3,601 GBP
View
A
Retailer 10
-
£3,642 GBP
View
A
Retailer 11
-
£3,650 GBP
View
A
Retailer 12
-
£3,972 GBP
View
B+
Retailer 13
-
£5,606 GBP
View
Most Expensive
Queensmith
2558095014 · Oct 28
£6,424 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £2,668 GBPSave up to £2,938 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
£2,668 GBP