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Cushion|Natural|GIA

1.50ct E SI2 Cushion Natural Diamond

ID • E/SI2 • GIA 1553328108

Certificate GIA 1553328108

Diamond specifications and retailer prices

From £3,124 GBP
HK$32,500 HKD
As of October 29, 2026
Save £3,876 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £7,000 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 1553328108. Listed at 16 retailers as of October 28, 2026, with prices from £3,124 to £7,000, a £3,876 spread on the same certified stone. Queensmith lists it at £7,000. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553328108
Dimensions7.60 × 5.83 × 4.10 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Indented Natural, Needle
Top View
7.60 mm5.83 mm1.50 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553328108
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 70.3%

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: Oct 29
Current: £7,000 GBP|Low: £3,124 GBP|High: £7,048 GBP|Avg: £4,427 GBP|+2.0%
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
Retailer 14
October 29, 2026
Retailer 13£3,124 GBP
Retailer 10£3,379 GBP
Retailer 3£3,707 GBP
Retailer 6£3,715 GBP
Retailer 14£3,885 GBP
Retailer 7£3,989 GBP
Retailer 12£4,013 GBP
Retailer 2£4,093 GBP
Retailer 4£4,198 GBP
Retailer 11£4,208 GBP
Retailer 5£4,324 GBP
Retailer 9£4,755 GBP
Retailer 8£6,739 GBP
Queensmith£7,000 GBP

24 data points across 14 retailers

16 retailers£3,124 GBP to £7,000 GBP

A
Cheapest Retailer
-
£3,124 GBP
HK$32,500 HKD
A
Retailer 2
-
£3,379 GBP
₹428,546 INR
View
A
Retailer 3
-
£3,707 GBP
$4,936 USD
View
A
Retailer 4
-
£3,715 GBP
SGD 6,686 SGD
View
A
Retailer 5
-
£3,863 GBP
$5,144 USD
View
A
Retailer 6
-
£3,885 GBP
$5,173 USD
View
Final sale: no returns
A
Retailer 7
-
£3,989 GBP
View
A
Retailer 8
-
£4,013 GBP
SGD 7,222 SGD
View
A
Retailer 9
-
£4,093 GBP
View
A
Retailer 10
-
£4,198 GBP
$5,590 USD
View
A
Retailer 11
-
£4,208 GBP
$5,604 USD
View
A
Retailer 12
-
£4,241 GBP
A$8,688 AUD
View
A
Retailer 13
-
£4,324 GBP
$5,759 USD
View
B+
Retailer 14
-
£4,755 GBP
€6,031 EUR
View
B+
Retailer 15
-
£6,739 GBP
View
Most Expensive
B
Queensmith
1553328108 · Oct 28
£7,000 GBP
View
15 more retailers have this diamond
Prices start from £3,124 GBPSave up to £3,876 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
£3,124 GBP