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Cushion|Natural|GIA

1.20ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 6552511415

Certificate GIA 6552511415

Diamond specifications and retailer prices

From £1,712 GBP
As of November 4, 2026
Save £2,083 GBP (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,794 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 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 6552511415. Listed at 23 retailers as of November 2, 2026, with prices from £1,712 to £3,794, a £2,083 spread on the same certified stone. MOH London lists it at £3,794. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552511415
Dimensions7.79 × 5.26 × 3.54 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.79 mm5.26 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6552511415
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.3%

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: £3,794 GBP|Low: £1,692 GBP|High: £3,961 GBP|Avg: £2,401 GBP|-4.2%
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
Retailer 20
November 6, 2026
Retailer 8£1,712 GBP
Retailer 6£1,796 GBP
Retailer 20£1,939 GBP
Retailer 10£2,038 GBP
Retailer 19£2,062 GBP
Retailer 9£2,084 GBP
Retailer 3£2,103 GBP
Retailer 14£2,250 GBP
Retailer 5£2,284 GBP
Retailer 12£2,344 GBP
Retailer 15£2,369 GBP
Retailer 11£2,377 GBP
Retailer 18£2,399 GBP
Retailer 2£2,406 GBP
Retailer 4£2,406 GBP
Retailer 13£2,488 GBP
Retailer 17£2,602 GBP
Retailer 16£2,699 GBP
Retailer 7£2,789 GBP
MOH London£3,794 GBP

23 data points across 20 retailers

23 retailers£1,712 GBP to £3,794 GBP

A
Cheapest Retailer
-
£1,712 GBP
A
Retailer 2
-
£1,796 GBP
View
A
Retailer 3
-
£1,939 GBP
View
Final sale: no returns
Retailer 4
-
£2,038 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£2,062 GBP
View
B+
Retailer 6
-
£2,084 GBP
View
B+
Retailer 7
-
£2,103 GBP
View
B+
Retailer 8
-
£2,214 GBP
View
B+
Retailer 9
-
£2,250 GBP
View
B+
Retailer 10
-
£2,284 GBP
View
Retailer 11
-
£2,344 GBP
View
Price last confirmed 22 days ago
B+
Retailer 12
-
£2,359 GBP
View
B+
Retailer 13
-
£2,369 GBP
View
Retailer 14
-
£2,377 GBP
View
Price last confirmed 11 days ago
B+
Retailer 15
-
£2,399 GBP
View
B+
Retailer 16
-
£2,406 GBP
View
B+
Retailer 17
-
£2,406 GBP
View
B+
Retailer 18
-
£2,488 GBP
View
Retailer 19
-
£2,566 GBP
View
Price last confirmed 34 days ago
B+
Retailer 20
-
£2,602 GBP
View
B+
Retailer 21
-
£2,699 GBP
View
B+
Retailer 22
-
£2,789 GBP
View
Most Expensive
B
MOH London
805DF8A19 · Nov 2
£3,794 GBP
View
22 more retailers have this diamond
Prices start from £1,712 GBPSave up to £2,083 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
£1,712 GBP