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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 7542536264

Certificate GIA 7542536264

Diamond specifications and retailer prices

From £2,415 GBP
As of November 4, 2026
Save £2,414 GBP (50%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,958 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 D 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 7542536264. Listed at 18 retailers as of November 2, 2026, with a 100% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7542536264
Dimensions7.16 × 5.28 × 3.58 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.16 mm5.28 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7542536264
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.8%

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 4
Current: £4,958 GBP|Low: £2,415 GBP|High: £5,067 GBP|Avg: £3,233 GBP|+0.3%
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
Retailer 14
Retailer 15
November 5, 2026
Retailer 3£2,415 GBP
Retailer 12£2,518 GBP
Retailer 14£2,621 GBP
Retailer 7£2,711 GBP
Retailer 2£2,799 GBP
Retailer 5£2,814 GBP
Retailer 9£2,926 GBP
Retailer 4£2,981 GBP
Retailer 6£2,981 GBP
Retailer 13£3,078 GBP
Retailer 15£3,269 GBP
Retailer 10£3,366 GBP
Retailer 8£3,524 GBP
Retailer 11£4,829 GBP
Queensmith£4,958 GBP

27 data points across 15 retailers

18 retailers£2,415 GBP to £4,829 GBP

B+
Cheapest Retailer
-
£2,415 GBP
Final sale: no returns
B+
Retailer 2
-
£2,518 GBP
View
B+
Retailer 3
-
£2,621 GBP
View
Retailer 4
-
£2,711 GBP
View
Price last confirmed 22 days ago
B+
Retailer 5
-
£2,791 GBP
View
B+
Retailer 6
-
£2,799 GBP
View
B+
Retailer 7
-
£2,814 GBP
View
B+
Retailer 8
-
£2,926 GBP
View
B+
Retailer 9
-
£2,961 GBP
View
B+
Retailer 10
-
£2,981 GBP
View
B+
Retailer 11
-
£2,981 GBP
View
B+
Retailer 12
-
£3,078 GBP
View
Retailer 13
-
£3,225 GBP
View
Price last confirmed 34 days ago
Retailer 14
-
£3,269 GBP
View
Price last confirmed 15 days ago
B+
Retailer 15
-
£3,366 GBP
View
B
Retailer 16
-
£3,524 GBP
View
B
Retailer 17
-
£4,829 GBP
View
Most Expensive
Queensmith
7542536264 · Oct 28
£4,958 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from £2,415 GBPSave up to £2,414 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
£2,415 GBP