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Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6212464766

Certificate GIA 6212464766

Diamond specifications and retailer prices

From £3,547 GBP
As of November 6, 2026
Save £3,127 GBP (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,673 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 F 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 6212464766. Listed at 7 retailers as of November 4, 2026, with prices from £3,547 to £6,673, a £3,127 spread on the same certified stone. MOH London lists it at £6,673. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6212464766
Dimensions5.95 × 5.63 × 4.09 mm
L/W Ratio1.06
Top View
5.95 mm5.63 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6212464766
Side View
Table 68.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 72.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £6,673 GBP|Low: £3,773 GBP|High: £6,772 GBP|Avg: £4,589 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4£3,773 GBP
Retailer 6£3,777 GBP
Retailer 2£4,146 GBP
Retailer 5£4,327 GBP
Retailer 3£4,677 GBP
MOH London£6,673 GBP

43 data points across 6 retailers

7 retailers£3,547 GBP to £6,673 GBP

B
Cheapest Retailer
-
£3,547 GBP
B
Retailer 2
-
£3,773 GBP
View
B
Retailer 3
-
£3,777 GBP
View
B
Retailer 4
-
£4,146 GBP
View
Retailer 5
-
£4,327 GBP
View
Price last confirmed 20 days ago
B
Retailer 6
-
£4,677 GBP
View
Most Expensive
B
MOH London
7045D333B · Nov 4
£6,673 GBP
View
6 more retailers have this diamond
Prices start from £3,547 GBPSave up to £3,127 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
£3,547 GBP