CaratHunter
Plans
Cushion|Natural|GIA

1.50ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 2546960285

Certificate GIA 2546960285

Diamond specifications and retailer prices

From £3,815 GBP
As of November 6, 2026
Save £3,569 GBP (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £7,652 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546960285. Listed at 18 retailers as of November 4, 2026, with a 94% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546960285
Dimensions7.58 × 5.83 × 4.00 mm
L/W Ratio1.30
Top View
7.58 mm5.83 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546960285
Side View
Table 63.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 68.7%

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: £7,652 GBP|Low: £3,777 GBP|High: £7,709 GBP|Avg: £5,252 GBP|+1.4%
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 7, 2026
Retailer 13£3,815 GBP
Retailer 7£4,016 GBP
Retailer 3£4,236 GBP
Retailer 10£4,510 GBP
Retailer 4£4,639 GBP
Retailer 12£4,640 GBP
Retailer 14£4,640 GBP
Retailer 2£4,785 GBP
Retailer 5£4,931 GBP
Retailer 6£5,145 GBP
Retailer 8£5,461 GBP
Retailer 9£6,132 GBP
Retailer 11£7,384 GBP
Queensmith£7,652 GBP

28 data points across 14 retailers

18 retailers£3,815 GBP to £7,384 GBP

A
Cheapest Retailer
-
£3,815 GBP
A
Retailer 2
-
£4,016 GBP
View
B+
Retailer 3
-
£4,236 GBP
View
Retailer 4
-
£4,370 GBP
View
Price last confirmed 24 days ago
B+
Retailer 5
-
£4,510 GBP
View
B+
Retailer 6
-
£4,639 GBP
View
Final sale: no returns
B+
Retailer 7
-
£4,640 GBP
View
Retailer 8
-
£4,640 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£4,663 GBP
View
B+
Retailer 10
-
£4,785 GBP
View
B+
Retailer 11
-
£4,931 GBP
View
Retailer 12
-
£5,009 GBP
View
Price last confirmed 34 days ago
B+
Retailer 13
-
£5,145 GBP
View
B+
Retailer 14
-
£5,156 GBP
View
B+
Retailer 15
-
£5,461 GBP
View
B+
Retailer 16
-
£6,132 GBP
View
B
Retailer 17
-
£7,384 GBP
View
Most Expensive
Queensmith
2546960285 · Oct 28
£7,652 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from £3,815 GBPSave up to £3,569 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
£3,815 GBP