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Cushion|Natural|GIA

1.00ct G SI2 Cushion Natural Diamond

ID • G/SI2 • GIA 2426143213

Certificate GIA 2426143213

Diamond specifications and retailer prices

From £1,118 GBP
As of November 6, 2026
Save £1,531 GBP (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,649 GBP at MOH London · As of November 2, 2026
View at MOH London

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 2426143213. Listed at 12 retailers as of November 2, 2026, with prices from £1,118 to £2,649, a £1,531 spread on the same certified stone. MOH London lists it at £2,649. 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 2426143213
Dimensions5.60 × 5.31 × 3.80 mm
L/W Ratio1.05
Top View
5.60 mm5.31 mm1.00 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2426143213
Side View
Table 64.0%CrownGirdle: Ext. ThickPavilionCulet: NoneDepth 71.5%

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: £2,649 GBP|Low: £1,109 GBP|High: £2,663 GBP|Avg: £1,592 GBP|-0.5%
MOH London
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
November 6, 2026
Retailer 10£1,118 GBP
Retailer 4£1,295 GBP
Retailer 12£1,395 GBP
Retailer 6£1,406 GBP
Retailer 13£1,449 GBP
Retailer 2£1,487 GBP
Retailer 11£1,512 GBP
Retailer 8£1,559 GBP
Retailer 3£1,584 GBP
Retailer 14£1,615 GBP
Retailer 9£1,642 GBP
Retailer 5£1,822 GBP
Retailer 7£2,053 GBP
MOH London£2,649 GBP

31 data points across 14 retailers

12 retailers£1,118 GBP to £2,649 GBP

A
Cheapest Retailer
-
£1,118 GBP
A
Retailer 2
-
£1,366 GBP
View
B+
Retailer 3
-
£1,395 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,449 GBP
View
A
Retailer 5
-
£1,487 GBP
View
Retailer 6
-
£1,512 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£1,559 GBP
View
B+
Retailer 8
-
£1,584 GBP
View
B+
Retailer 9
-
£1,615 GBP
View
B+
Retailer 10
-
£1,642 GBP
View
B+
Retailer 11
-
£2,053 GBP
View
Most Expensive
B
MOH London
723B0D537 · Nov 2
£2,649 GBP
View
11 more retailers have this diamond
Prices start from £1,118 GBPSave up to £1,531 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
£1,118 GBP