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Cushion|Natural|GIA

1.02ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 2231989008

Certificate GIA 2231989008

Diamond specifications and retailer prices

From £846 GBP
As of November 4, 2026
Save £1,035 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,881 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.02ct natural cushion diamond

This 1.02ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231989008. Listed at 16 retailers as of November 4, 2026, with prices from £846 to £1,881, a £1,035 spread on the same certified stone. MOH London lists it at £1,881. 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

1.02
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231989008
Dimensions5.90 × 5.82 × 3.83 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.90 mm5.82 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231989008
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.8%

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: £1,881 GBP|Low: £832 GBP|High: £2,012 GBP|Avg: £1,231 GBP|-6.6%
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
November 6, 2026
Retailer 3£846 GBP
Retailer 13£851 GBP
Retailer 15£900 GBP
Retailer 10£974 GBP
Retailer 6£988 GBP
Retailer 12£1,041 GBP
Retailer 5£1,061 GBP
Retailer 14£1,133 GBP
Retailer 8£1,188 GBP
Retailer 9£1,313 GBP
Retailer 4£1,474 GBP
Retailer 7£1,481 GBP
Retailer 2£1,490 GBP
Retailer 11£1,713 GBP
MOH London£1,881 GBP

31 data points across 15 retailers

16 retailers£846 GBP to £1,881 GBP

A
Cheapest Retailer
-
£846 GBP
A
Retailer 2
-
£851 GBP
View
A
Retailer 3
-
£900 GBP
View
Final sale: no returns
A
Retailer 4
-
£974 GBP
View
A
Retailer 5
-
£988 GBP
View
A
Retailer 6
-
£1,041 GBP
View
A
Retailer 7
-
£1,061 GBP
View
B+
Retailer 8
-
£1,133 GBP
View
B+
Retailer 9
-
£1,188 GBP
View
B+
Retailer 10
-
£1,257 GBP
View
B+
Retailer 11
-
£1,313 GBP
View
B
Retailer 12
-
£1,474 GBP
View
Retailer 13
-
£1,481 GBP
View
Price last confirmed 33 days ago
B
Retailer 14
-
£1,490 GBP
View
B
Retailer 15
-
£1,713 GBP
View
Most Expensive
B
MOH London
BF8E69CBE · Nov 4
£1,881 GBP
View
15 more retailers have this diamond
Prices start from £846 GBPSave up to £1,035 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
1.02ct Cushion
£846 GBP