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Cushion|Natural|GIA

1.00ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 6555009953

Certificate GIA 6555009953

Diamond specifications and retailer prices

From £1,453 GBP
As of November 6, 2026
Save £1,967 GBP (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,615 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1ct natural cushion diamond

This 1ct 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 6555009953. Listed at 18 retailers as of November 2, 2026, with a 135% 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

1.00
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555009953
Dimensions7.16 × 5.28 × 3.24 mm
L/W Ratio1.36
Top View
7.16 mm5.28 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555009953
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.4%

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: £3,615 GBP|Low: £1,443 GBP|High: £3,625 GBP|Avg: £2,359 GBP|+2.7%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£1,453 GBP
Retailer 2£1,455 GBP
Retailer 3£1,894 GBP
Retailer 5£2,020 GBP
Retailer 6£2,054 GBP
Retailer 7£2,383 GBP
Retailer 4£2,424 GBP
Retailer 8£3,420 GBP
Queensmith£3,615 GBP

26 data points across 9 retailers

18 retailers£1,453 GBP to £3,420 GBP

A
Cheapest Retailer
-
£1,453 GBP
A
Retailer 2
-
£1,455 GBP
View
B+
Retailer 3
-
£1,712 GBP
View
B+
Retailer 4
-
£1,748 GBP
View
B+
Retailer 5
-
£1,788 GBP
View
B+
Retailer 6
-
£1,802 GBP
View
Final sale: no returns
B+
Retailer 7
-
£1,894 GBP
View
B+
Retailer 8
-
£1,928 GBP
View
B+
Retailer 9
-
£2,020 GBP
View
B+
Retailer 10
-
£2,054 GBP
View
B+
Retailer 11
-
£2,058 GBP
View
Retailer 12
-
£2,188 GBP
View
Price last confirmed 31 days ago
B+
Retailer 13
-
£2,241 GBP
View
Retailer 14
-
£2,341 GBP
View
Price last confirmed 180 days ago
B+
Retailer 15
-
£2,383 GBP
View
B+
Retailer 16
-
£2,424 GBP
View
B
Retailer 17
-
£3,420 GBP
View
Most Expensive
Queensmith
6555009953 · Oct 28
£3,615 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from £1,453 GBPSave up to £1,967 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
1.00ct Cushion
£1,453 GBP