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Cushion|Natural|GIA

1.50ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6194946238

Certificate GIA 6194946238

Diamond specifications and retailer prices

From £3,505 GBP
As of November 6, 2026
Save £3,240 GBP (48%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £6,868 GBP at MOH London · As of October 26, 2026
View at MOH London

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 6194946238. Listed at 26 retailers as of November 6, 2026, with a 92% 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6194946238
Dimensions6.83 × 5.72 × 4.21 mm
L/W Ratio1.19
Top View
6.83 mm5.72 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6194946238
Side View
Table 58.0%CrownGirdle: STK-EXTPavilionCulet: NoneDepth 73.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £6,868 GBP|Low: £3,679 GBP|High: £6,942 GBP|Avg: £4,769 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3£3,679 GBP
Retailer 7£3,702 GBP
Retailer 8£3,711 GBP
Retailer 9£4,217 GBP
Retailer 4£4,332 GBP
Retailer 2£4,409 GBP
Retailer 10£4,626 GBP
Retailer 5£4,790 GBP
Retailer 6£5,668 GBP
MOH London£6,868 GBP

39 data points across 10 retailers

26 retailers£3,505 GBP to £6,745 GBP

A
Cheapest Retailer
-
£3,505 GBP
A
Retailer 2
-
£3,637 GBP
View
A
Retailer 3
-
£3,679 GBP
View
Retailer 4
-
£3,702 GBP
View
Price last confirmed 17 days ago
A
Retailer 5
-
£3,711 GBP
View
Final sale: no returns
A
Retailer 6
-
£3,725 GBP
View
A
Retailer 7
-
£3,830 GBP
View
A
Retailer 8
-
£3,925 GBP
View
A
Retailer 9
-
£3,945 GBP
View
A
Retailer 10
-
£3,961 GBP
View
Retailer 11
-
£4,165 GBP
View
Price last confirmed 13 days ago
Retailer 12
-
£4,217 GBP
View
Price last confirmed 13 days ago
B+
Retailer 13
-
£4,332 GBP
View
B+
Retailer 14
-
£4,409 GBP
View
Retailer 15
-
£4,411 GBP
View
Price last confirmed 11 days ago
B+
Retailer 16
-
£4,446 GBP
View
Retailer 17
-
£4,626 GBP
View
Price last confirmed 34 days ago
B+
Retailer 18
-
£4,707 GBP
View
B+
Retailer 19
-
£4,707 GBP
View
B+
Retailer 20
-
£4,790 GBP
View
B+
Retailer 21
-
£4,864 GBP
View
Retailer 22
-
£5,134 GBP
View
Price last confirmed 15 days ago
B+
Retailer 23
-
£5,274 GBP
View
Retailer 24
-
£5,668 GBP
View
Price last confirmed 11 days ago
B
Retailer 25
-
£6,745 GBP
View
Most Expensive
MOH London
47F780D5D · Oct 26
£6,868 GBP
View
Price last confirmed 11 days ago
25 more retailers have this diamond
Prices start from £3,505 GBPSave up to £3,240 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
£3,505 GBP