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Cushion|Natural|GIA

1.20ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6461477871

Certificate GIA 6461477871

Diamond specifications and retailer prices

From £956 GBP
As of November 4, 2026
Save £1,099 GBP (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,055 GBP at MOH London · As of November 2, 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 J 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 6461477871. Listed at 13 retailers as of November 2, 2026, with prices from £956 to £2,055, a £1,099 spread on the same certified stone. MOH London lists it at £2,055. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.64°
Pavilion angle36.88°
OriginNatural
Grading LabGIA
CertificateGIA 6461477871
Dimensions5.92 × 5.91 × 4.13 mm
L/W Ratio1.00
Top View
5.92 mm5.91 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6461477871
Side View
Table 61.0%Crown 41.64°Girdle: STK-VTKPavilion 36.88°Culet: NoneDepth 69.9%

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 4
Current: £2,055 GBP|Low: £944 GBP|High: £2,151 GBP|Avg: £1,345 GBP|-3.3%
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 6£956 GBP
Retailer 11£999 GBP
Retailer 3£1,008 GBP
Retailer 12£1,086 GBP
Retailer 2£1,138 GBP
Retailer 4£1,266 GBP
Retailer 10£1,288 GBP
Retailer 8£1,367 GBP
Retailer 9£1,367 GBP
Retailer 7£1,412 GBP
Retailer 5£1,624 GBP
MOH London£2,055 GBP

36 data points across 12 retailers

13 retailers£956 GBP to £2,055 GBP

A
Cheapest Retailer
-
£956 GBP
A
Retailer 2
-
£999 GBP
View
A
Retailer 3
-
£1,008 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,086 GBP
View
A
Retailer 5
-
£1,105 GBP
View
A
Retailer 6
-
£1,138 GBP
View
B+
Retailer 7
-
£1,266 GBP
View
B+
Retailer 8
-
£1,288 GBP
View
B+
Retailer 9
-
£1,367 GBP
View
B+
Retailer 10
-
£1,367 GBP
View
B+
Retailer 11
-
£1,412 GBP
View
B+
Retailer 12
-
£1,624 GBP
View
Most Expensive
B
MOH London
AB9BCD335 · Nov 2
£2,055 GBP
View
12 more retailers have this diamond
Prices start from £956 GBPSave up to £1,099 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
£956 GBP