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Cushion|Natural|GIA

1.20ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 3545728074

Certificate GIA 3545728074

Diamond specifications and retailer prices

From £1,654 GBP
As of November 6, 2026
Save £1,980 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,393 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545728074. Listed at 15 retailers as of November 4, 2026, with a 120% 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3545728074
Dimensions7.06 × 5.44 × 3.77 mm
L/W Ratio1.30
Top View
7.06 mm5.44 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545728074
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.3%

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: £4,393 GBP|Low: £1,654 GBP|High: £4,407 GBP|Avg: £2,588 GBP|+2.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12£1,654 GBP
Retailer 2£1,722 GBP
Retailer 9£1,969 GBP
Retailer 4£2,011 GBP
Retailer 5£2,142 GBP
Retailer 3£2,285 GBP
Retailer 8£2,293 GBP
Retailer 7£2,304 GBP
Retailer 11£2,357 GBP
Retailer 6£2,536 GBP
Retailer 10£3,634 GBP
Queensmith£4,393 GBP

25 data points across 12 retailers

15 retailers£1,654 GBP to £3,634 GBP

A
Cheapest Retailer
-
£1,654 GBP
A
Retailer 2
-
£1,722 GBP
View
B+
Retailer 3
-
£1,969 GBP
View
B+
Retailer 4
-
£2,011 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,090 GBP
View
B+
Retailer 6
-
£2,142 GBP
View
Retailer 7
-
£2,199 GBP
View
Price last confirmed 22 days ago
B
Retailer 8
-
£2,238 GBP
View
B
Retailer 9
-
£2,285 GBP
View
B+
Retailer 10
-
£2,293 GBP
View
B
Retailer 11
-
£2,304 GBP
View
B
Retailer 12
-
£2,357 GBP
View
B+
Retailer 13
-
£2,536 GBP
View
B
Retailer 14
-
£3,634 GBP
View
Most Expensive
Queensmith
3545728074 · Oct 28
£4,393 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from £1,654 GBPSave up to £1,980 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
£1,654 GBP