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Cushion|Natural|GIA

1.01ct J SI1 Cushion Natural Diamond

ID • J/SI1 • GIA 5443239565

Certificate GIA 5443239565

Diamond specifications and retailer prices

From £925 GBP
As of November 6, 2026
Save £1,136 GBP (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,061 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct natural cushion diamond

This 1.01ct 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 5443239565. Listed at 21 retailers as of November 4, 2026, with prices from £925 to £2,061, a £1,136 spread on the same certified stone. MOH London lists it at £2,061. 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

1.01
Carat
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.66°
Pavilion angle63.84°
OriginNatural
Grading LabGIA
CertificateGIA 5443239565
Dimensions5.84 × 5.79 × 4.00 mm
L/W Ratio1.01
Top View
5.84 mm5.79 mm1.01 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5443239565
Side View
Table 63.0%Crown 34.66°Girdle: THN-STKPavilion 63.84°Culet: NoneDepth 69.0%

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: £2,061 GBP|Low: £925 GBP|High: £2,077 GBP|Avg: £1,323 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£925 GBP
Retailer 6£1,125 GBP
Retailer 3£1,144 GBP
Retailer 9£1,240 GBP
Retailer 8£1,265 GBP
Retailer 5£1,307 GBP
Retailer 7£1,439 GBP
Retailer 4£1,602 GBP
MOH London£2,061 GBP

26 data points across 9 retailers

21 retailers£925 GBP to £2,061 GBP

A
Cheapest Retailer
-
£925 GBP
A
Retailer 2
-
£1,034 GBP
View
B+
Retailer 3
-
£1,078 GBP
View
B+
Retailer 4
-
£1,089 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,093 GBP
View
B+
Retailer 6
-
£1,125 GBP
View
B+
Retailer 7
-
£1,144 GBP
View
Retailer 8
-
£1,179 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£1,218 GBP
View
B+
Retailer 10
-
£1,240 GBP
View
B+
Retailer 11
-
£1,265 GBP
View
B+
Retailer 12
-
£1,281 GBP
View
B+
Retailer 13
-
£1,284 GBP
View
B+
Retailer 14
-
£1,301 GBP
View
B+
Retailer 15
-
£1,304 GBP
View
B+
Retailer 16
-
£1,307 GBP
View
B+
Retailer 17
-
£1,439 GBP
View
Retailer 18
-
£1,538 GBP
View
Price last confirmed 33 days ago
B+
Retailer 19
-
£1,602 GBP
View
B
Retailer 20
-
£1,781 GBP
View
Most Expensive
B
MOH London
69ECC1AB7 · Nov 4
£2,061 GBP
View
20 more retailers have this diamond
Prices start from £925 GBPSave up to £1,136 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
1.01ct Cushion
£925 GBP