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Cushion|Natural|GIA

1.20ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 6552315849

Certificate GIA 6552315849

Diamond specifications and retailer prices

From £1,453 GBP
As of November 6, 2026
Save £1,928 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,175 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-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 6552315849. Listed at 14 retailers as of November 2, 2026, with a 133% 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

1.20
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552315849
Dimensions6.88 × 5.30 × 3.68 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.88 mm5.30 mm1.20 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552315849
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.4%

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: £4,175 GBP|Low: £1,434 GBP|High: £4,246 GBP|Avg: £2,284 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
November 7, 2026
Retailer 9£1,453 GBP
Retailer 5£1,517 GBP
Retailer 7£1,753 GBP
Retailer 12£1,781 GBP
Retailer 11£1,931 GBP
Retailer 4£2,018 GBP
Retailer 10£2,035 GBP
Retailer 2£2,043 GBP
Retailer 3£2,099 GBP
Retailer 6£2,397 GBP
Retailer 8£3,381 GBP
Queensmith£4,175 GBP

33 data points across 12 retailers

14 retailers£1,453 GBP to £3,381 GBP

A
Cheapest Retailer
-
£1,453 GBP
A
Retailer 2
-
£1,517 GBP
View
A
Retailer 3
-
£1,753 GBP
View
A
Retailer 4
-
£1,781 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,862 GBP
View
Retailer 6
-
£1,931 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£1,995 GBP
View
B+
Retailer 8
-
£2,018 GBP
View
B+
Retailer 9
-
£2,035 GBP
View
B+
Retailer 10
-
£2,043 GBP
View
B+
Retailer 11
-
£2,099 GBP
View
B+
Retailer 12
-
£2,397 GBP
View
B
Retailer 13
-
£3,381 GBP
View
Most Expensive
Queensmith
6552315849 · Oct 28
£4,175 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £1,453 GBPSave up to £1,928 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
1.20ct Cushion
£1,453 GBP