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Cushion|Natural|GIA

1.20ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5546402725

Certificate GIA 5546402725

Diamond specifications and retailer prices

From £2,152 GBP
As of November 6, 2026
Save £2,548 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,901 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 E 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 5546402725. Listed at 19 retailers as of November 4, 2026, with a 118% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546402725
Dimensions7.46 × 5.52 × 3.51 mm
L/W Ratio1.35
Top View
7.46 mm5.52 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546402725
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

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: £4,901 GBP|Low: £2,132 GBP|High: £4,991 GBP|Avg: £3,075 GBP|+1.1%
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 3£2,152 GBP
Retailer 2£2,231 GBP
Retailer 17£2,544 GBP
Retailer 8£2,557 GBP
Retailer 7£2,601 GBP
Retailer 14£2,605 GBP
Retailer 12£2,708 GBP
Retailer 4£2,712 GBP
Retailer 10£2,734 GBP
Retailer 6£2,818 GBP
Retailer 15£2,918 GBP
Retailer 5£2,927 GBP
Retailer 9£3,013 GBP
Retailer 11£3,281 GBP
Retailer 13£3,440 GBP
Retailer 16£4,700 GBP
Queensmith£4,901 GBP

24 data points across 17 retailers

19 retailers£2,152 GBP to £4,700 GBP

A
Cheapest Retailer
-
£2,152 GBP
A
Retailer 2
-
£2,231 GBP
View
B+
Retailer 3
-
£2,544 GBP
View
B+
Retailer 4
-
£2,557 GBP
View
B+
Retailer 5
-
£2,601 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,605 GBP
View
B+
Retailer 7
-
£2,708 GBP
View
B+
Retailer 8
-
£2,712 GBP
View
B+
Retailer 9
-
£2,719 GBP
View
B+
Retailer 10
-
£2,734 GBP
View
Retailer 11
-
£2,818 GBP
View
Price last confirmed 12 days ago
B+
Retailer 12
-
£2,918 GBP
View
B+
Retailer 13
-
£2,927 GBP
View
B+
Retailer 14
-
£3,013 GBP
View
Retailer 15
-
£3,142 GBP
View
Price last confirmed 33 days ago
B+
Retailer 16
-
£3,281 GBP
View
B
Retailer 17
-
£3,440 GBP
View
B
Retailer 18
-
£4,700 GBP
View
Most Expensive
Queensmith
5546402725 · Oct 28
£4,901 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £2,152 GBPSave up to £2,548 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
£2,152 GBP