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Cushion|Natural|GIA

1.26ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2548379374

Certificate GIA 2548379374

Diamond specifications and retailer prices

From £1,638 GBP
As of November 6, 2026
Save £1,959 GBP (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,431 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.26ct natural cushion diamond

This 1.26ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 2548379374. Listed at 14 retailers as of November 4, 2026, with a 120% 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

1.26
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2548379374
Dimensions5.92 × 5.90 × 3.89 mm
L/W Ratio1.00
Top View
5.92 mm5.90 mm1.26 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2548379374
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,431 GBP|Low: £1,638 GBP|High: £4,445 GBP|Avg: £2,505 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
November 6, 2026
Retailer 2£1,638 GBP
Retailer 3£1,900 GBP
Retailer 10£1,945 GBP
Retailer 5£1,995 GBP
Retailer 6£1,997 GBP
Retailer 4£2,072 GBP
Retailer 13£2,164 GBP
Retailer 8£2,179 GBP
Retailer 12£2,241 GBP
Retailer 7£2,396 GBP
Retailer 9£2,513 GBP
Retailer 11£3,597 GBP
Queensmith£4,431 GBP

23 data points across 13 retailers

14 retailers£1,638 GBP to £3,597 GBP

A
Cheapest Retailer
-
£1,638 GBP
A
Retailer 2
-
£1,900 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,921 GBP
View
A
Retailer 4
-
£1,945 GBP
View
A
Retailer 5
-
£1,995 GBP
View
A
Retailer 6
-
£1,997 GBP
View
Retailer 7
-
£2,072 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£2,164 GBP
View
A
Retailer 9
-
£2,179 GBP
View
A
Retailer 10
-
£2,241 GBP
View
A
Retailer 11
-
£2,396 GBP
View
A
Retailer 12
-
£2,513 GBP
View
B
Retailer 13
-
£3,597 GBP
View
Most Expensive
Queensmith
2548379374 · Oct 28
£4,431 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from £1,638 GBPSave up to £1,959 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
1.26ct Cushion
£1,638 GBP