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Cushion|Natural|GIA

1.50ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 1543643600

Certificate GIA 1543643600

Diamond specifications and retailer prices

From £3,569 GBP
$4,753 USD
As of October 29, 2026
Save £3,479 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,048 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 1543643600. Listed at 15 retailers as of October 28, 2026, with prices from £3,569 to £7,048, a £3,479 spread on the same certified stone. Queensmith lists it at £7,048. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1543643600
Dimensions7.50 × 5.83 × 4.07 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Cavity, Needle, Natural
Top View
7.50 mm5.83 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543643600
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.8%

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: £7,048 GBP|Low: £3,569 GBP|High: £7,100 GBP|Avg: £4,708 GBP|+1.6%
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£3,569 GBP
Retailer 4£3,828 GBP
Retailer 5£3,891 GBP
Retailer 2£4,034 GBP
Retailer 10£4,083 GBP
Retailer 6£4,155 GBP
Retailer 3£4,348 GBP
Retailer 12£4,348 GBP
Retailer 13£4,498 GBP
Retailer 9£4,710 GBP
Retailer 8£4,824 GBP
Retailer 7£6,835 GBP
Queensmith£7,048 GBP

33 data points across 13 retailers

15 retailers£3,569 GBP to £7,048 GBP

A
Cheapest Retailer
-
£3,569 GBP
$4,753 USD
Final sale: no returns
A
Retailer 2
-
£3,828 GBP
$5,098 USD
View
Retailer 3
-
£3,891 GBP
$5,181 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
£3,958 GBP
$5,271 USD
View
A
Retailer 5
-
£4,034 GBP
View
A
Retailer 6
-
£4,083 GBP
$5,437 USD
View
A
Retailer 7
-
£4,155 GBP
View
A
Retailer 8
-
£4,348 GBP
$5,790 USD
View
A
Retailer 9
-
£4,348 GBP
$5,790 USD
View
B+
Retailer 10
-
£4,498 GBP
$5,990 USD
View
B+
Retailer 11
-
£4,631 GBP
A$9,488 AUD
View
Retailer 12
-
£4,710 GBP
$6,272 USD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
£4,824 GBP
€6,118 EUR
View
B
Retailer 14
-
£6,835 GBP
View
Most Expensive
B
Queensmith
1543643600 · Oct 28
£7,048 GBP
View
14 more retailers have this diamond
Prices start from £3,569 GBPSave up to £3,479 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
£3,569 GBP