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Cushion|Natural|GIA

1.00ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 6545313333

Certificate GIA 6545313333

Diamond specifications and retailer prices

From £758 GBP
As of November 6, 2026
Save £303 GBP (29%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,061 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

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 6545313333. Listed at 7 retailers as of November 6, 2026, with prices from £758 to £1,061, a £303 spread on the same certified stone. Brilliant Earth lists it at £1,061. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545313333
Dimensions5.66 × 5.47 × 3.71 mm
L/W Ratio1.03
Top View
5.66 mm5.47 mm1.00 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545313333
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,061 GBP|Low: £690 GBP|High: £1,203 GBP|Avg: £895 GBP|-11.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6£758 GBP
Retailer 3£761 GBP
Retailer 4£791 GBP
Retailer 2£834 GBP
Retailer 5£870 GBP
Retailer 7£1,024 GBP
Brilliant Earth£1,061 GBP

41 data points across 7 retailers

7 retailers£758 GBP to £1,061 GBP

A
Cheapest Retailer
-
£758 GBP
A
Retailer 2
-
£761 GBP
View
Final sale: no returns
A
Retailer 3
-
£791 GBP
View
A
Retailer 4
-
£834 GBP
View
A
Retailer 5
-
£870 GBP
View
A
Retailer 6
-
£1,024 GBP
View
Most Expensive
A
Brilliant Earth
18008635A · Nov 6
£1,061 GBP
$1,420 USD
View
6 more retailers have this diamond
Prices start from £758 GBPSave up to £303 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
£758 GBP