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Radiant|Natural|GIA

1.00ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 7551332657

Certificate GIA 7551332657

Diamond specifications and retailer prices

From £829 GBP
As of November 6, 2026
Save £1,909 GBP (70%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,738 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551332657. Listed at 15 retailers as of November 5, 2026, with prices from £829 to £2,738, a £1,909 spread on the same certified stone. NZ Jewellers lists it at £2,738. 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551332657
Dimensions7.15 × 4.94 × 3.28 mm
L/W Ratio1.45
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Natural
Top View
7.15 mm4.94 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551332657
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.4%

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: £2,738 GBP|Low: £829 GBP|High: £2,944 GBP|Avg: £1,374 GBP|-7.0%
NZ Jewellers
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
November 7, 2026
Retailer 9£829 GBP
Retailer 8£874 GBP
Retailer 4£988 GBP
Retailer 14£1,040 GBP
Retailer 13£1,123 GBP
Retailer 7£1,165 GBP
Retailer 6£1,193 GBP
Retailer 10£1,224 GBP
Retailer 2£1,229 GBP
Retailer 5£1,233 GBP
Retailer 12£1,284 GBP
Retailer 11£1,439 GBP
Retailer 3£1,961 GBP
NZ Jewellers£2,738 GBP

22 data points across 14 retailers

15 retailers£829 GBP to £2,738 GBP

A
Cheapest Retailer
-
£829 GBP
A
Retailer 2
-
£874 GBP
View
Final sale: no returns
A
Retailer 3
-
£988 GBP
View
A
Retailer 4
-
£1,040 GBP
View
A
Retailer 5
-
£1,123 GBP
View
A
Retailer 6
-
£1,165 GBP
View
Retailer 7
-
£1,193 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£1,224 GBP
View
B+
Retailer 9
-
£1,229 GBP
View
B+
Retailer 10
-
£1,233 GBP
View
B+
Retailer 11
-
£1,284 GBP
View
Retailer 12
-
£1,377 GBP
View
Price last confirmed 62 days ago
B+
Retailer 13
-
£1,439 GBP
View
B
Retailer 14
-
£1,961 GBP
View
Most Expensive
B
NZ Jewellers
08b6e644-1bbb-4b96-a50f-9d75462d9df2 · Nov 5
£2,738 GBP
$3,665 USD
View
14 more retailers have this diamond
Prices start from £829 GBPSave up to £1,909 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 Radiant
£829 GBP