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Cushion|Natural|GIA

1.00ct G SI2 Cushion Natural Diamond

ID • G/SI2 • GIA 5211636877

Certificate GIA 5211636877

Diamond specifications and retailer prices

From £1,108 GBP
As of November 6, 2026
Save £1,209 GBP (52%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,098 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5211636877. Listed at 15 retailers as of November 4, 2026, with a 109% 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5211636877
Dimensions5.77 × 5.35 × 3.72 mm
L/W Ratio1.08
Top View
5.77 mm5.35 mm1.00 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5211636877
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

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: £3,098 GBP|Low: £1,108 GBP|High: £3,107 GBP|Avg: £1,741 GBP|+2.8%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£1,108 GBP
Retailer 7£1,201 GBP
Retailer 8£1,227 GBP
Retailer 6£1,290 GBP
Retailer 2£1,304 GBP
Retailer 4£1,471 GBP
Retailer 3£1,801 GBP
Retailer 5£2,317 GBP
Queensmith£3,098 GBP

39 data points across 9 retailers

15 retailers£1,108 GBP to £2,317 GBP

A
Cheapest Retailer
-
£1,108 GBP
Final sale: no returns
A
Retailer 2
-
£1,113 GBP
View
Retailer 3
-
£1,201 GBP
View
Price last confirmed 9 days ago
A
Retailer 4
-
£1,227 GBP
View
A
Retailer 5
-
£1,257 GBP
View
A
Retailer 6
-
£1,283 GBP
View
A
Retailer 7
-
£1,290 GBP
View
A
Retailer 8
-
£1,304 GBP
View
A
Retailer 9
-
£1,360 GBP
View
A
Retailer 10
-
£1,360 GBP
View
A
Retailer 11
-
£1,405 GBP
View
A
Retailer 12
-
£1,471 GBP
View
B+
Retailer 13
-
£1,801 GBP
View
B+
Retailer 14
-
£2,317 GBP
View
Most Expensive
Queensmith
5211636877 · Oct 28
£3,098 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from £1,108 GBPSave up to £1,209 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
£1,108 GBP