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Cushion|Natural|GIA

1.50ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 6555192200

Certificate GIA 6555192200

Diamond specifications and retailer prices

From £2,413 GBP
HK$25,300 HKD
As of November 1, 2026
Save £3,724 GBP (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,137 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 6555192200. Listed at 15 retailers as of October 28, 2026, with prices from £2,413 to £6,137, a £3,724 spread on the same certified stone. Queensmith lists it at £6,137. 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 6555192200
Dimensions7.29 × 5.59 × 3.91 mm
L/W Ratio1.30
Top View
7.29 mm5.59 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555192200
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.9%

Caratlytics Score

How it works →
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 1
Current: £6,137 GBP|Low: £2,394 GBP|High: £6,180 GBP|Avg: £3,487 GBP|+2.3%
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
November 2, 2026
Retailer 10£2,413 GBP
Retailer 2£2,574 GBP
Retailer 5£2,818 GBP
Retailer 3£2,946 GBP
Retailer 6£3,008 GBP
Retailer 13£3,038 GBP
Retailer 11£3,192 GBP
Retailer 8£3,265 GBP
Retailer 4£3,303 GBP
Retailer 12£3,393 GBP
Retailer 7£3,611 GBP
Retailer 9£5,339 GBP
Queensmith£6,137 GBP

24 data points across 13 retailers

15 retailers£2,413 GBP to £6,137 GBP

A
Cheapest Retailer
-
£2,413 GBP
HK$25,300 HKD
A
Retailer 2
-
£2,574 GBP
₹328,935 INR
View
A
Retailer 3
-
£2,818 GBP
SGD 5,110 SGD
View
A
Retailer 4
-
£2,929 GBP
$3,931 USD
View
A
Retailer 5
-
£2,946 GBP
$3,953 USD
View
Final sale: no returns
A
Retailer 6
-
£3,008 GBP
View
A
Retailer 7
-
£3,038 GBP
SGD 5,510 SGD
View
A
Retailer 8
-
£3,192 GBP
$4,283 USD
View
A
Retailer 9
-
£3,265 GBP
View
A
Retailer 10
-
£3,303 GBP
$4,432 USD
View
A
Retailer 11
-
£3,385 GBP
A$6,988 AUD
View
A
Retailer 12
-
£3,393 GBP
$4,553 USD
View
A
Retailer 13
-
£3,611 GBP
€4,615 EUR
View
B
Retailer 14
-
£5,339 GBP
View
Most Expensive
B
Queensmith
6555192200 · Oct 28
£6,137 GBP
View
14 more retailers have this diamond
Prices start from £2,413 GBPSave up to £3,724 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
£2,413 GBP