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Cushion|Natural|GIA

1.20ct G SI1 Cushion Natural Diamond

ID • G/SI1 • GIA 1459440060

Certificate GIA 1459440060

Diamond specifications and retailer prices

From £1,316 GBP
As of November 6, 2026
Save £1,608 GBP (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,924 GBP at MOH London · As of November 1, 2026
View at MOH London

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 1459440060. Listed at 22 retailers as of November 1, 2026, with prices from £1,316 to £2,924, a £1,608 spread on the same certified stone. MOH London lists it at £2,924. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.31°
Pavilion angle62°
OriginNatural
Grading LabGIA
CertificateGIA 1459440060
Dimensions6.17 × 5.73 × 3.98 mm
L/W Ratio1.08
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Cloud, Needle
Top View
6.17 mm5.73 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1459440060
Side View
Table 63.0%Crown 39.31°Girdle: STK-VTKPavilion 62°Culet: NoneDepth 69.5%

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: £2,924 GBP|Low: £1,316 GBP|High: £2,956 GBP|Avg: £1,819 GBP|-1.1%
MOH London
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 2£1,316 GBP
Retailer 11£1,319 GBP
Retailer 12£1,453 GBP
Retailer 10£1,505 GBP
Retailer 5£1,619 GBP
Retailer 4£1,637 GBP
Retailer 3£1,718 GBP
Retailer 8£1,813 GBP
Retailer 7£1,831 GBP
Retailer 9£2,037 GBP
Retailer 6£2,072 GBP
MOH London£2,924 GBP

24 data points across 12 retailers

22 retailers£1,316 GBP to £2,924 GBP

A
Cheapest Retailer
-
£1,316 GBP
A
Retailer 2
-
£1,319 GBP
View
A
Retailer 3
-
£1,505 GBP
View
A
Retailer 4
-
£1,508 GBP
View
A
Retailer 5
-
£1,541 GBP
View
Final sale: no returns
A
Retailer 6
-
£1,619 GBP
View
A
Retailer 7
-
£1,637 GBP
View
Retailer 8
-
£1,669 GBP
View
Price last confirmed 9 days ago
A
Retailer 9
-
£1,677 GBP
View
A
Retailer 10
-
£1,718 GBP
View
A
Retailer 11
-
£1,756 GBP
View
A
Retailer 12
-
£1,773 GBP
View
A
Retailer 13
-
£1,813 GBP
View
A
Retailer 14
-
£1,817 GBP
View
A
Retailer 15
-
£1,831 GBP
View
A
Retailer 16
-
£1,864 GBP
View
B+
Retailer 17
-
£2,037 GBP
View
Retailer 18
-
£2,052 GBP
View
Price last confirmed 32 days ago
B+
Retailer 19
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£2,072 GBP
View
B+
Retailer 20
-
£2,479 GBP
View
B
Retailer 21
-
£2,548 GBP
View
Most Expensive
B+
MOH London
B7B684B65 · Nov 1
£2,924 GBP
View
21 more retailers have this diamond
Prices start from £1,316 GBPSave up to £1,608 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
£1,316 GBP