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Cushion|Natural|GIA

1.21ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1549794955

Certificate GIA 1549794955

Diamond specifications and retailer prices

From £2,263 GBP
As of November 5, 2026
Save £2,449 GBP (52%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,712 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct 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 1549794955. Listed at 15 retailers as of November 4, 2026, with prices from £2,263 to £4,712, a £2,449 spread on the same certified stone. MOH London lists it at £4,712. 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

1.21
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle37°
OriginNatural
Grading LabGIA
CertificateGIA 1549794955
Dimensions7.03 × 5.61 × 3.86 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.03 mm5.61 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1549794955
Side View
Table 68.0%CrownGirdle: STK-VTKPavilion 37°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £4,712 GBP|Low: £2,165 GBP|High: £4,781 GBP|Avg: £3,016 GBP|-1.4%
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
November 6, 2026
Retailer 2£2,339 GBP
Retailer 10£2,404 GBP
Retailer 13£2,469 GBP
Retailer 9£2,560 GBP
Retailer 4£2,846 GBP
Retailer 5£2,846 GBP
Retailer 8£2,925 GBP
Retailer 3£2,944 GBP
Retailer 11£3,026 GBP
Retailer 12£3,199 GBP
Retailer 6£3,257 GBP
Retailer 7£3,448 GBP
MOH London£4,712 GBP

36 data points across 13 retailers

15 retailers£2,263 GBP to £4,712 GBP

B+
Cheapest Retailer
-
£2,263 GBP
B+
Retailer 2
-
£2,273 GBP
View
B+
Retailer 3
-
£2,339 GBP
View
Final sale: no returns
B+
Retailer 4
-
£2,404 GBP
View
B+
Retailer 5
-
£2,469 GBP
View
Retailer 6
-
£2,560 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£2,846 GBP
View
B+
Retailer 8
-
£2,846 GBP
View
B+
Retailer 9
-
£2,925 GBP
View
B
Retailer 10
-
£2,944 GBP
View
Retailer 11
-
£3,026 GBP
View
Price last confirmed 30 days ago
Retailer 12
-
£3,199 GBP
View
Price last confirmed 15 days ago
B
Retailer 13
-
£3,257 GBP
View
B
Retailer 14
-
£3,448 GBP
View
Most Expensive
B
MOH London
0E4A8F13F · Nov 4
£4,712 GBP
View
14 more retailers have this diamond
Prices start from £2,263 GBPSave up to £2,449 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.

B+
1.21ct Cushion
£2,263 GBP