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Cushion|Natural|GIA

1.21ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 2556672496

Certificate GIA 2556672496

Diamond specifications and retailer prices

From £1,511 GBP
As of November 6, 2026
Save £2,004 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,241 GBP at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556672496. Listed at 15 retailers as of November 4, 2026, with a 133% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556672496
Dimensions7.20 × 5.53 × 3.67 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Knot, Needle
Top View
7.20 mm5.53 mm1.21 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556672496
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.3%

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 6
Current: £4,241 GBP|Low: £1,501 GBP|High: £4,317 GBP|Avg: £2,396 GBP|+1.5%
Queensmith
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 12£1,511 GBP
Retailer 2£1,578 GBP
Retailer 10£1,842 GBP
Retailer 4£1,856 GBP
Retailer 6£1,978 GBP
Retailer 13£2,011 GBP
Retailer 8£2,104 GBP
Retailer 3£2,117 GBP
Retailer 9£2,129 GBP
Retailer 5£2,183 GBP
Retailer 7£2,498 GBP
Retailer 11£3,514 GBP
Queensmith£4,241 GBP

24 data points across 13 retailers

15 retailers£1,511 GBP to £3,514 GBP

A
Cheapest Retailer
-
£1,511 GBP
A
Retailer 2
-
£1,578 GBP
View
A
Retailer 3
-
£1,842 GBP
View
A
Retailer 4
-
£1,856 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,955 GBP
View
A
Retailer 6
-
£1,978 GBP
View
Retailer 7
-
£2,011 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£2,104 GBP
View
B+
Retailer 9
-
£2,117 GBP
View
B+
Retailer 10
-
£2,129 GBP
View
B+
Retailer 11
-
£2,140 GBP
View
B+
Retailer 12
-
£2,183 GBP
View
B+
Retailer 13
-
£2,498 GBP
View
B
Retailer 14
-
£3,514 GBP
View
Most Expensive
Queensmith
2556672496 · Oct 28
£4,241 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from £1,511 GBPSave up to £2,004 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
1.21ct Cushion
£1,511 GBP