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Cushion|Natural|GIA

1.50ct E SI2 Cushion Natural Diamond

ID • E/SI2 • GIA 2547128793

Certificate GIA 2547128793

Diamond specifications and retailer prices

From £2,591 GBP
As of November 6, 2026
Save £2,853 GBP (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,343 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 2547128793. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2547128793
Dimensions9.10 × 5.59 × 3.83 mm
L/W Ratio1.63
Top View
9.10 mm5.59 mm1.50 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2547128793
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.6%

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: £6,343 GBP|Low: £2,572 GBP|High: £6,386 GBP|Avg: £3,818 GBP|+2.3%
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 9£2,591 GBP
Retailer 2£2,764 GBP
Retailer 7£3,074 GBP
Retailer 12£3,163 GBP
Retailer 11£3,298 GBP
Retailer 6£3,355 GBP
Retailer 10£3,428 GBP
Retailer 3£3,511 GBP
Retailer 4£3,539 GBP
Retailer 5£3,857 GBP
Retailer 8£5,444 GBP
Queensmith£6,343 GBP

31 data points across 12 retailers

14 retailers£2,591 GBP to £5,444 GBP

A
Cheapest Retailer
-
£2,591 GBP
A
Retailer 2
-
£2,764 GBP
View
A
Retailer 3
-
£3,074 GBP
View
A
Retailer 4
-
£3,163 GBP
View
Final sale: no returns
A
Retailer 5
-
£3,179 GBP
View
A
Retailer 6
-
£3,298 GBP
View
A
Retailer 7
-
£3,355 GBP
View
Retailer 8
-
£3,428 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£3,461 GBP
View
A
Retailer 10
-
£3,511 GBP
View
A
Retailer 11
-
£3,539 GBP
View
A
Retailer 12
-
£3,857 GBP
View
B+
Retailer 13
-
£5,444 GBP
View
Most Expensive
Queensmith
2547128793 · Oct 28
£6,343 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £2,591 GBPSave up to £2,853 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
£2,591 GBP