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Radiant|Natural|GIA

1.00ct J SI2 Radiant Natural Diamond

GD • J/SI2 • GIA 7508227806

Certificate GIA 7508227806

Diamond specifications and retailer prices

From £1,326 GBP
As of November 4, 2026
Save £2,142 GBP (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,468 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7508227806. Listed at 18 retailers as of November 4, 2026, with prices from £1,326 to £3,468, a £2,142 spread on the same certified stone. NZ Jewellers lists it at £3,468. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7508227806
Dimensions6.92 × 5.10 × 3.43 mm
L/W Ratio1.36
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.92 mm5.10 mm1.00 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7508227806
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,468 GBP|Low: £1,326 GBP|High: £3,468 GBP|Avg: £1,949 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7£1,326 GBP
Retailer 3£1,449 GBP
Retailer 9£1,503 GBP
Retailer 10£1,503 GBP
Retailer 8£1,572 GBP
Retailer 11£1,734 GBP
Retailer 2£1,802 GBP
Retailer 5£2,115 GBP
Retailer 4£2,167 GBP
Retailer 6£2,898 GBP
NZ Jewellers£3,468 GBP

43 data points across 11 retailers

18 retailers£1,326 GBP to £3,468 GBP

B+
Cheapest Retailer
-
£1,326 GBP
B+
Retailer 2
-
£1,358 GBP
View
B+
Retailer 3
-
£1,362 GBP
View
B
Retailer 4
-
£1,449 GBP
View
Retailer 5
-
£1,503 GBP
View
Price last confirmed 9 days ago
B
Retailer 6
-
£1,503 GBP
View
B
Retailer 7
-
£1,572 GBP
View
B
Retailer 8
-
£1,625 GBP
View
B
Retailer 9
-
£1,734 GBP
View
B
Retailer 10
-
£1,748 GBP
View
B
Retailer 11
-
£1,748 GBP
View
B
Retailer 12
-
£1,802 GBP
View
B
Retailer 13
-
£1,808 GBP
View
B
Retailer 14
-
£1,911 GBP
View
B
Retailer 15
-
£2,115 GBP
View
C
Retailer 16
-
£2,167 GBP
View
C
Retailer 17
-
£2,898 GBP
View
Most Expensive
C
NZ Jewellers
d9a33814-d1f5-414f-a188-86fd2c7e3593 · Nov 5
£3,468 GBP
$4,642 USD
View
17 more retailers have this diamond
Prices start from £1,326 GBPSave up to £2,142 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 Radiant
£1,326 GBP