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Cushion|Natural|GIA

1.01ct J SI1 Cushion Natural Diamond

ID • J/SI1 • GIA 5241007259

Certificate GIA 5241007259

Diamond specifications and retailer prices

From £908 GBP
As of November 6, 2026
Save £1,187 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,096 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 5241007259. Listed at 22 retailers as of November 4, 2026, with prices from £908 to £2,096, a £1,187 spread on the same certified stone. MOH London lists it at £2,096. 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
OriginNatural
Grading LabGIA
CertificateGIA 5241007259
Dimensions6.93 × 5.32 × 3.55 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
6.93 mm5.32 mm1.01 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241007259
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.7%

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: £2,096 GBP|Low: £898 GBP|High: £2,197 GBP|Avg: £1,296 GBP|-4.6%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 6£908 GBP
Retailer 10£911 GBP
Retailer 12£965 GBP
Retailer 9£1,003 GBP
Retailer 17£1,010 GBP
Retailer 16£1,063 GBP
Retailer 4£1,098 GBP
Retailer 3£1,112 GBP
Retailer 11£1,124 GBP
Retailer 20£1,158 GBP
Retailer 2£1,163 GBP
Retailer 14£1,193 GBP
Retailer 8£1,207 GBP
Retailer 19£1,222 GBP
Retailer 5£1,314 GBP
Retailer 15£1,464 GBP
Retailer 13£1,629 GBP
Retailer 18£1,841 GBP
Retailer 7£1,890 GBP
MOH London£2,096 GBP

22 data points across 20 retailers

22 retailers£908 GBP to £2,096 GBP

A
Cheapest Retailer
-
£908 GBP
A
Retailer 2
-
£911 GBP
View
A
Retailer 3
-
£1,003 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,010 GBP
View
A
Retailer 5
-
£1,063 GBP
View
A
Retailer 6
-
£1,098 GBP
View
B+
Retailer 7
-
£1,112 GBP
View
B+
Retailer 8
-
£1,124 GBP
View
B+
Retailer 9
-
£1,158 GBP
View
B+
Retailer 10
-
£1,163 GBP
View
B+
Retailer 11
-
£1,193 GBP
View
B+
Retailer 12
-
£1,207 GBP
View
Retailer 13
-
£1,210 GBP
View
Price last confirmed 30 days ago
B+
Retailer 14
-
£1,222 GBP
View
B+
Retailer 15
-
£1,290 GBP
View
B+
Retailer 16
-
£1,314 GBP
View
B+
Retailer 17
-
£1,464 GBP
View
Retailer 18
-
£1,586 GBP
View
Price last confirmed 33 days ago
B+
Retailer 19
-
£1,629 GBP
View
B
Retailer 20
-
£1,841 GBP
View
B
Retailer 21
-
£1,890 GBP
View
Most Expensive
B
MOH London
A426CEF9A · Nov 4
£2,096 GBP
View
21 more retailers have this diamond
Prices start from £908 GBPSave up to £1,187 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
£908 GBP