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Cushion|Natural|GIA

1.00ct J SI2 Cushion Natural Diamond

GD • J/SI2 • GIA 6281730589

Certificate GIA 6281730589

Diamond specifications and retailer prices

From £1,899 GBP
As of November 6, 2026
Save £1,816 GBP (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,716 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6281730589. Listed at 6 retailers as of November 2, 2026, with prices from £1,899 to £3,716, a £1,816 spread on the same certified stone. MOH London lists it at £3,716. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6281730589
Dimensions6.00 × 5.34 × 3.65 mm
L/W Ratio1.12
Cert comments
CANADIAN DIAMOND
Top View
6.00 mm5.34 mm1.00 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6281730589
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,716 GBP|Low: £1,854 GBP|High: £3,760 GBP|Avg: £2,324 GBP|+2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6£1,899 GBP
Retailer 7£1,928 GBP
Retailer 4£1,946 GBP
Retailer 5£1,951 GBP
Retailer 3£2,120 GBP
Retailer 8£2,462 GBP
Retailer 2£2,468 GBP
MOH London£3,716 GBP

27 data points across 8 retailers

6 retailers£1,899 GBP to £3,716 GBP

B
Cheapest Retailer
-
£1,899 GBP
Retailer 2
-
£1,946 GBP
View
Price last confirmed 9 days ago
B
Retailer 3
-
£1,951 GBP
View
Retailer 4
-
£2,120 GBP
View
Price last confirmed 8 days ago
C
Retailer 5
-
£2,468 GBP
View
Most Expensive
C
MOH London
49330C978 · Nov 2
£3,716 GBP
View
5 more retailers have this diamond
Prices start from £1,899 GBPSave up to £1,816 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.

B
1.00ct Cushion
£1,899 GBP