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Cushion|Natural|GIA

1.20ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 5556673282

Certificate GIA 5556673282

Diamond specifications and retailer prices

From £1,674 GBP
As of November 6, 2026
Save £2,037 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,412 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556673282. Listed at 19 retailers as of November 2, 2026, with a 122% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556673282
Dimensions7.13 × 5.42 × 3.78 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural
Top View
7.13 mm5.42 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556673282
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.8%

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: £4,412 GBP|Low: £1,654 GBP|High: £4,488 GBP|Avg: £2,537 GBP|-1.7%
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
Retailer 15
November 6, 2026
Retailer 15£1,674 GBP
Retailer 2£1,742 GBP
Retailer 6£1,993 GBP
Retailer 13£2,026 GBP
Retailer 5£2,048 GBP
Retailer 8£2,152 GBP
Retailer 3£2,219 GBP
Retailer 10£2,324 GBP
Retailer 4£2,325 GBP
Retailer 11£2,349 GBP
Retailer 7£2,398 GBP
Retailer 9£2,583 GBP
Retailer 12£2,708 GBP
Retailer 14£3,710 GBP
Queensmith£4,412 GBP

23 data points across 15 retailers

19 retailers£1,674 GBP to £3,710 GBP

A
Cheapest Retailer
-
£1,674 GBP
A
Retailer 2
-
£1,742 GBP
View
B+
Retailer 3
-
£1,993 GBP
View
B+
Retailer 4
-
£2,026 GBP
View
B+
Retailer 5
-
£2,048 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,132 GBP
View
B+
Retailer 7
-
£2,133 GBP
View
B+
Retailer 8
-
£2,152 GBP
View
Retailer 9
-
£2,219 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£2,286 GBP
View
B+
Retailer 11
-
£2,324 GBP
View
B+
Retailer 12
-
£2,325 GBP
View
B+
Retailer 13
-
£2,349 GBP
View
B+
Retailer 14
-
£2,398 GBP
View
Retailer 15
-
£2,464 GBP
View
Price last confirmed 31 days ago
B+
Retailer 16
-
£2,583 GBP
View
B+
Retailer 17
-
£2,708 GBP
View
B
Retailer 18
-
£3,710 GBP
View
Most Expensive
Queensmith
5556673282 · Oct 28
£4,412 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £1,674 GBPSave up to £2,037 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
£1,674 GBP