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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5433396863

Certificate GIA 5433396863

Diamond specifications and retailer prices

From £925 GBP
As of November 5, 2026
Save £897 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,822 GBP at MOH London · As of November 4, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5433396863. Listed at 11 retailers as of November 4, 2026, with prices from £925 to £1,822, a £897 spread on the same certified stone. MOH London lists it at £1,822. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5433396863
Dimensions5.74 × 5.68 × 4.18 mm
L/W Ratio1.01
Top View
5.74 mm5.68 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5433396863
Side View
Table 64.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,822 GBP|Low: £925 GBP|High: £1,941 GBP|Avg: £1,266 GBP|-5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£925 GBP
Retailer 6£930 GBP
Retailer 2£968 GBP
Retailer 8£1,080 GBP
Retailer 7£1,100 GBP
Retailer 9£1,108 GBP
Retailer 4£1,121 GBP
Retailer 5£1,217 GBP
Retailer 3£1,384 GBP
MOH London£1,822 GBP

34 data points across 10 retailers

11 retailers£925 GBP to £1,822 GBP

A
Cheapest Retailer
-
£925 GBP
A
Retailer 2
-
£930 GBP
View
A
Retailer 3
-
£968 GBP
View
B+
Retailer 4
-
£1,080 GBP
View
Retailer 5
-
£1,095 GBP
View
Price last confirmed 30 days ago
A
Retailer 6
-
£1,100 GBP
View
B+
Retailer 7
-
£1,108 GBP
View
A
Retailer 8
-
£1,121 GBP
View
B+
Retailer 9
-
£1,217 GBP
View
B+
Retailer 10
-
£1,384 GBP
View
Most Expensive
B
MOH London
D43CBFDD5 · Nov 4
£1,822 GBP
View
10 more retailers have this diamond
Prices start from £925 GBPSave up to £897 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
£925 GBP