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Cushion|Natural|GIA

1.20ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6555816948

Certificate GIA 6555816948

Diamond specifications and retailer prices

From £1,855 GBP
As of November 6, 2026
Save £2,258 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,630 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 6555816948. Listed at 15 retailers as of November 4, 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555816948
Dimensions7.53 × 5.56 × 3.45 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Indented Natural, Needle
Top View
7.53 mm5.56 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555816948
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.1%

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: £4,630 GBP|Low: £1,855 GBP|High: £4,645 GBP|Avg: £2,801 GBP|+2.4%
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 6, 2026
Retailer 13£1,855 GBP
Retailer 2£1,926 GBP
Retailer 9£2,203 GBP
Retailer 4£2,276 GBP
Retailer 6£2,425 GBP
Retailer 5£2,486 GBP
Retailer 10£2,551 GBP
Retailer 3£2,573 GBP
Retailer 8£2,585 GBP
Retailer 12£2,637 GBP
Retailer 7£2,871 GBP
Retailer 11£4,113 GBP
Queensmith£4,630 GBP

27 data points across 13 retailers

15 retailers£1,855 GBP to £4,113 GBP

A
Cheapest Retailer
-
£1,855 GBP
B+
Retailer 2
-
£1,926 GBP
View
B+
Retailer 3
-
£2,203 GBP
View
B+
Retailer 4
-
£2,276 GBP
View
Final sale: no returns
B
Retailer 5
-
£2,319 GBP
View
B+
Retailer 6
-
£2,425 GBP
View
B+
Retailer 7
-
£2,465 GBP
View
Retailer 8
-
£2,486 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£2,551 GBP
View
B
Retailer 10
-
£2,573 GBP
View
B
Retailer 11
-
£2,585 GBP
View
B
Retailer 12
-
£2,637 GBP
View
B
Retailer 13
-
£2,871 GBP
View
B
Retailer 14
-
£4,113 GBP
View
Most Expensive
Queensmith
6555816948 · Oct 28
£4,630 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from £1,855 GBPSave up to £2,258 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
£1,855 GBP