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Cushion|Natural|GIA

1.50ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 2554824183

Certificate GIA 2554824183

Diamond specifications and retailer prices

From £3,052 GBP
HK$32,000 HKD
As of November 1, 2026
Save £3,814 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,866 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 F 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 2554824183. Listed at 16 retailers as of October 28, 2026, with prices from £3,052 to £6,866, a £3,814 spread on the same certified stone. Queensmith lists it at £6,866. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554824183
Dimensions7.59 × 5.90 × 4.13 mm
L/W Ratio1.29
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Natural
Top View
7.59 mm5.90 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554824183
Side View
Table 65.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.9%

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 1
Current: £6,866 GBP|Low: £3,024 GBP|High: £6,890 GBP|Avg: £4,128 GBP|+2.4%
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
November 2, 2026
Retailer 10£3,052 GBP
Retailer 14£3,220 GBP
Retailer 11£3,271 GBP
Retailer 3£3,274 GBP
Retailer 13£3,408 GBP
Retailer 4£3,468 GBP
Retailer 5£3,659 GBP
Retailer 12£3,692 GBP
Retailer 2£3,840 GBP
Retailer 8£3,977 GBP
Retailer 6£4,498 GBP
Retailer 7£4,612 GBP
Retailer 9£6,491 GBP
Queensmith£6,866 GBP

35 data points across 14 retailers

16 retailers£3,052 GBP to £6,866 GBP

A
Cheapest Retailer
-
£3,052 GBP
HK$32,000 HKD
A
Retailer 2
-
£3,220 GBP
$4,321 USD
View
A
Retailer 3
-
£3,271 GBP
$4,390 USD
View
A
Retailer 4
-
£3,274 GBP
$4,394 USD
View
A
Retailer 5
-
£3,408 GBP
$4,573 USD
View
Final sale: no returns
A
Retailer 6
-
£3,468 GBP
$4,654 USD
View
A
Retailer 7
-
£3,659 GBP
$4,910 USD
View
Retailer 8
-
£3,692 GBP
$4,955 USD
View
Price last confirmed 8 days ago
A
Retailer 9
-
£3,771 GBP
A$7,785 AUD
View
A
Retailer 10
-
£3,840 GBP
View
Retailer 11
-
£3,846 GBP
SGD 6,975 SGD
View
Price last confirmed 28 days ago
A
Retailer 12
-
£3,977 GBP
View
Retailer 13
-
£4,498 GBP
$6,036 USD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
£4,612 GBP
€5,894 EUR
View
B
Retailer 15
-
£6,491 GBP
View
Most Expensive
B
Queensmith
2554824183 · Oct 28
£6,866 GBP
View
15 more retailers have this diamond
Prices start from £3,052 GBPSave up to £3,814 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
£3,052 GBP