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Cushion|Natural|GIA

1.00ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 6312770209

Certificate GIA 6312770209

Diamond specifications and retailer prices

From £1,050 GBP
As of November 4, 2026
Save £1,237 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,287 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6312770209. Listed at 19 retailers as of November 4, 2026, with prices from £1,050 to £2,287, a £1,237 spread on the same certified stone. MOH London lists it at £2,287. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6312770209
Dimensions5.47 × 5.33 × 3.76 mm
L/W Ratio1.03
Top View
5.47 mm5.33 mm1.00 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6312770209
Side View
Table 61.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.5%

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 4
Current: £2,287 GBP|Low: £1,050 GBP|High: £2,321 GBP|Avg: £1,490 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£1,050 GBP
Retailer 9£1,095 GBP
Retailer 7£1,111 GBP
Retailer 8£1,186 GBP
Retailer 2£1,257 GBP
Retailer 4£1,452 GBP
Retailer 5£1,597 GBP
Retailer 10£1,711 GBP
Retailer 3£1,760 GBP
MOH London£2,287 GBP

35 data points across 10 retailers

19 retailers£1,050 GBP to £2,287 GBP

A
Cheapest Retailer
-
£1,050 GBP
B+
Retailer 2
-
£1,095 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,099 GBP
View
B+
Retailer 4
-
£1,102 GBP
View
A
Retailer 5
-
£1,111 GBP
View
Retailer 6
-
£1,186 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£1,242 GBP
View
A
Retailer 8
-
£1,257 GBP
View
B+
Retailer 9
-
£1,289 GBP
View
B+
Retailer 10
-
£1,307 GBP
View
B+
Retailer 11
-
£1,316 GBP
View
B+
Retailer 12
-
£1,397 GBP
View
B+
Retailer 13
-
£1,397 GBP
View
B+
Retailer 14
-
£1,442 GBP
View
B+
Retailer 15
-
£1,452 GBP
View
B+
Retailer 16
-
£1,597 GBP
View
Retailer 17
-
£1,711 GBP
View
Price last confirmed 34 days ago
B+
Retailer 18
-
£1,760 GBP
View
Most Expensive
B
MOH London
6DEE3EA21 · Nov 4
£2,287 GBP
View
18 more retailers have this diamond
Prices start from £1,050 GBPSave up to £1,237 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
£1,050 GBP