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Cushion|Natural|GIA

1.20ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2231997420

Certificate GIA 2231997420

Diamond specifications and retailer prices

From £1,405 GBP
As of November 6, 2026
Save £1,949 GBP (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,354 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231997420. Listed at 20 retailers as of November 4, 2026, with prices from £1,405 to £3,354, a £1,949 spread on the same certified stone. MOH London lists it at £3,354. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231997420
Dimensions6.06 × 6.02 × 4.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.06 mm6.02 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231997420
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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: £3,354 GBP|Low: £1,367 GBP|High: £3,382 GBP|Avg: £1,987 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 19£1,405 GBP
Retailer 16£1,548 GBP
Retailer 4£1,605 GBP
Retailer 2£1,658 GBP
Retailer 15£1,665 GBP
Retailer 9£1,672 GBP
Retailer 8£1,674 GBP
Retailer 5£1,741 GBP
Retailer 18£1,741 GBP
Retailer 3£1,759 GBP
Retailer 7£1,783 GBP
Retailer 13£1,796 GBP
Retailer 10£1,922 GBP
Retailer 6£1,972 GBP
Retailer 11£2,117 GBP
Retailer 14£2,343 GBP
Retailer 12£2,383 GBP
Retailer 17£2,905 GBP
MOH London£3,354 GBP

25 data points across 19 retailers

20 retailers£1,405 GBP to £3,354 GBP

A
Cheapest Retailer
-
£1,405 GBP
A
Retailer 2
-
£1,548 GBP
View
A
Retailer 3
-
£1,605 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,658 GBP
View
A
Retailer 5
-
£1,665 GBP
View
A
Retailer 6
-
£1,672 GBP
View
A
Retailer 7
-
£1,674 GBP
View
A
Retailer 8
-
£1,741 GBP
View
A
Retailer 9
-
£1,741 GBP
View
A
Retailer 10
-
£1,759 GBP
View
A
Retailer 11
-
£1,783 GBP
View
A
Retailer 12
-
£1,796 GBP
View
Retailer 13
-
£1,922 GBP
View
Price last confirmed 22 days ago
A
Retailer 14
-
£1,972 GBP
View
A
Retailer 15
-
£1,980 GBP
View
Retailer 16
-
£2,117 GBP
View
Price last confirmed 30 days ago
B+
Retailer 17
-
£2,343 GBP
View
B+
Retailer 18
-
£2,383 GBP
View
B+
Retailer 19
-
£2,905 GBP
View
Most Expensive
B
MOH London
32F03C752 · Nov 4
£3,354 GBP
View
19 more retailers have this diamond
Prices start from £1,405 GBPSave up to £1,949 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
£1,405 GBP