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Cushion|Natural|GIA

1.00ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 6431234770

Certificate GIA 6431234770

Diamond specifications and retailer prices

From £1,090 GBP
As of November 6, 2026
Save £1,347 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,437 GBP at MOH London · As of November 4, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6431234770. Listed at 17 retailers as of November 4, 2026, with prices from £1,090 to £2,437, a £1,347 spread on the same certified stone. MOH London lists it at £2,437. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6431234770
Dimensions6.65 × 4.91 × 3.53 mm
L/W Ratio1.35
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
6.65 mm4.91 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6431234770
Side View
Table 69.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 71.9%

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: £2,437 GBP|Low: £1,090 GBP|High: £2,625 GBP|Avg: £1,544 GBP|-7.2%
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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 12£1,090 GBP
Retailer 3£1,151 GBP
Retailer 15£1,154 GBP
Retailer 4£1,165 GBP
Retailer 14£1,167 GBP
Retailer 16£1,185 GBP
Retailer 13£1,315 GBP
Retailer 17£1,317 GBP
Retailer 5£1,338 GBP
Retailer 9£1,341 GBP
Retailer 6£1,502 GBP
Retailer 10£1,514 GBP
Retailer 11£1,702 GBP
Retailer 2£1,894 GBP
Retailer 8£1,931 GBP
Retailer 7£1,999 GBP
MOH London£2,437 GBP

43 data points across 17 retailers

17 retailers£1,090 GBP to £2,437 GBP

A
Cheapest Retailer
-
£1,090 GBP
A
Retailer 2
-
£1,151 GBP
View
A
Retailer 3
-
£1,154 GBP
View
A
Retailer 4
-
£1,165 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,167 GBP
View
A
Retailer 6
-
£1,185 GBP
View
B+
Retailer 7
-
£1,315 GBP
View
B+
Retailer 8
-
£1,317 GBP
View
Retailer 9
-
£1,338 GBP
View
Price last confirmed 15 days ago
B+
Retailer 10
-
£1,502 GBP
View
B+
Retailer 11
-
£1,514 GBP
View
B+
Retailer 12
-
£1,523 GBP
View
B+
Retailer 13
-
£1,702 GBP
View
B+
Retailer 14
-
£1,894 GBP
View
Retailer 15
-
£1,931 GBP
View
Price last confirmed 33 days ago
B
Retailer 16
-
£1,999 GBP
View
Most Expensive
B
MOH London
945A3838F · Nov 4
£2,437 GBP
View
16 more retailers have this diamond
Prices start from £1,090 GBPSave up to £1,347 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
£1,090 GBP