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Radiant|Natural|GIA

1.00ct J SI2 Radiant Natural Diamond

VG • J/SI2 • GIA 6451364657

Certificate GIA 6451364657

Diamond specifications and retailer prices

From £1,539 GBP
As of November 4, 2026
Save £2,324 GBP (60%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,863 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6451364657. Listed at 12 retailers as of November 4, 2026, with prices from £1,539 to £3,863, a £2,324 spread on the same certified stone. NZ Jewellers lists it at £3,863. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6451364657
Dimensions7.07 × 5.24 × 3.64 mm
L/W Ratio1.35
Top View
7.07 mm5.24 mm1.00 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6451364657
Side View
Table 70.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,954 GBP|Low: £1,539 GBP|High: £3,275 GBP|Avg: £2,111 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 5£1,539 GBP
Retailer 6£1,751 GBP
Retailer 2£1,841 GBP
Retailer 1£1,954 GBP
Retailer 3£2,294 GBP
Retailer 4£3,228 GBP

42 data points across 6 retailers

12 retailers£1,539 GBP to £3,863 GBP

B
Cheapest Retailer
-
£1,539 GBP
B
Retailer 2
-
£1,629 GBP
View
B
Retailer 3
-
£1,674 GBP
View
Retailer 4
-
£1,674 GBP
View
Price last confirmed 9 days ago
B
Retailer 5
-
£1,712 GBP
View
B
Retailer 6
-
£1,751 GBP
View
B
Retailer 7
-
£1,841 GBP
View
B
Retailer 8
-
£1,931 GBP
View
B
Retailer 9
-
£1,954 GBP
View
B
Retailer 10
-
£2,294 GBP
View
C
Retailer 11
-
£3,228 GBP
View
Most Expensive
C
NZ Jewellers
858b2ddd-ae62-461d-8e57-75a7c314639a · Nov 5
£3,863 GBP
$5,170 USD
View
11 more retailers have this diamond
Prices start from £1,539 GBPSave up to £2,324 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
£1,539 GBP