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Cushion|Natural|GIA

1.50ct E SI2 Cushion Natural Diamond

GD • E/SI2 • GIA 5556584117

Certificate GIA 5556584117

Diamond specifications and retailer prices

From £2,723 GBP
HK$28,500 HKD
As of October 30, 2026
Save £3,813 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,535 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5556584117. Listed at 16 retailers as of October 28, 2026, with prices from £2,723 to £6,535, a £3,813 spread on the same certified stone. Queensmith lists it at £6,535. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556584117
Dimensions7.48 × 5.90 × 4.10 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Needle
Top View
7.48 mm5.90 mm1.50 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556584117
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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: Oct 30
Current: £6,535 GBP|Low: £2,723 GBP|High: £6,578 GBP|Avg: £4,005 GBP|+2.2%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 11£2,723 GBP
Retailer 2£2,956 GBP
Retailer 5£3,236 GBP
Retailer 3£3,253 GBP
Retailer 13£3,384 GBP
Retailer 6£3,465 GBP
Retailer 10£3,493 GBP
Retailer 7£3,645 GBP
Retailer 4£3,779 GBP
Retailer 12£3,873 GBP
Retailer 9£4,142 GBP
Retailer 8£5,870 GBP
Queensmith£6,535 GBP

24 data points across 13 retailers

16 retailers£2,723 GBP to £6,535 GBP

A
Cheapest Retailer
-
£2,723 GBP
HK$28,500 HKD
A
Retailer 2
-
£2,956 GBP
₹377,248 INR
View
A
Retailer 3
-
£3,236 GBP
SGD 5,860 SGD
View
A
Retailer 4
-
£3,253 GBP
$4,358 USD
View
B+
Retailer 5
-
£3,365 GBP
$4,509 USD
View
B+
Retailer 6
-
£3,384 GBP
$4,534 USD
View
Final sale: no returns
A
Retailer 7
-
£3,465 GBP
View
B+
Retailer 8
-
£3,493 GBP
SGD 6,325 SGD
View
A
Retailer 9
-
£3,645 GBP
View
Retailer 10
-
£3,691 GBP
$4,946 USD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
£3,768 GBP
A$7,768 AUD
View
B+
Retailer 12
-
£3,779 GBP
$5,063 USD
View
B+
Retailer 13
-
£3,873 GBP
$5,190 USD
View
B+
Retailer 14
-
£4,142 GBP
€5,286 EUR
View
B
Retailer 15
-
£5,870 GBP
View
Most Expensive
B
Queensmith
5556584117 · Oct 28
£6,535 GBP
View
15 more retailers have this diamond
Prices start from £2,723 GBPSave up to £3,813 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
£2,723 GBP