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Cushion|Natural|GIA

1.00ct J SI2 Cushion Natural Diamond

VG • J/SI2 • GIA 6541807604

Certificate GIA 6541807604

Diamond specifications and retailer prices

From £583 GBP
As of November 6, 2026
Save £852 GBP (59%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,435 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541807604. Listed at 10 retailers as of November 4, 2026, with prices from £583 to £1,435, a £852 spread on the same certified stone. MOH London lists it at £1,435. 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
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541807604
Dimensions6.78 × 5.09 × 3.55 mm
L/W Ratio1.33
Top View
6.78 mm5.09 mm1.00 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541807604
Side View
Table 62.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.7%

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: £1,435 GBP|Low: £583 GBP|High: £1,767 GBP|Avg: £955 GBP|-18.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3£583 GBP
Retailer 7£752 GBP
Retailer 10£784 GBP
Retailer 2£821 GBP
Retailer 8£852 GBP
Retailer 9£884 GBP
Retailer 6£887 GBP
Retailer 5£915 GBP
Retailer 4£1,094 GBP
MOH London£1,435 GBP

30 data points across 10 retailers

10 retailers£583 GBP to £1,435 GBP

A
Cheapest Retailer
-
£583 GBP
A
Retailer 2
-
£752 GBP
View
Retailer 3
-
£784 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£821 GBP
View
B+
Retailer 5
-
£852 GBP
View
B+
Retailer 6
-
£884 GBP
View
B+
Retailer 7
-
£887 GBP
View
B+
Retailer 8
-
£915 GBP
View
B+
Retailer 9
-
£1,094 GBP
View
Most Expensive
B
MOH London
7643BA083 · Nov 4
£1,435 GBP
View
9 more retailers have this diamond
Prices start from £583 GBPSave up to £852 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
£583 GBP