CaratHunter
Plans
Radiant|Natural|GIA

1.05ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 6555860333

Certificate GIA 6555860333

Diamond specifications and retailer prices

From £991 GBP
As of November 6, 2026
Save £1,629 GBP (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,619 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.05ct natural radiant diamond

This 1.05ct 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 6555860333. Listed at 13 retailers as of November 5, 2026, with prices from £991 to £2,619, a £1,629 spread on the same certified stone. NZ Jewellers lists it at £2,619. 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

1.05
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555860333
Dimensions6.70 × 5.09 × 3.50 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.70 mm5.09 mm1.05 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555860333
Side View
Table 67.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.9%

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: £2,619 GBP|Low: £991 GBP|High: £2,619 GBP|Avg: £1,313 GBP
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
November 7, 2026
Retailer 5£991 GBP
Retailer 3£995 GBP
Retailer 7£1,070 GBP
Retailer 9£1,074 GBP
Retailer 12£1,074 GBP
Retailer 6£1,124 GBP
Retailer 2£1,186 GBP
Retailer 13£1,204 GBP
Retailer 4£1,212 GBP
Retailer 11£1,239 GBP
Retailer 8£1,389 GBP
Retailer 10£1,877 GBP
NZ Jewellers£2,619 GBP

29 data points across 13 retailers

13 retailers£991 GBP to £2,619 GBP

A
Cheapest Retailer
-
£991 GBP
Final sale: no returns
A
Retailer 2
-
£995 GBP
View
A
Retailer 3
-
£1,070 GBP
View
A
Retailer 4
-
£1,074 GBP
View
Retailer 5
-
£1,074 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£1,124 GBP
View
A
Retailer 7
-
£1,186 GBP
View
A
Retailer 8
-
£1,204 GBP
View
A
Retailer 9
-
£1,212 GBP
View
A
Retailer 10
-
£1,239 GBP
View
B+
Retailer 11
-
£1,389 GBP
View
B+
Retailer 12
-
£1,877 GBP
View
Most Expensive
B
NZ Jewellers
f8468bdf-b497-4f96-ae09-48197bea22c4 · Nov 5
£2,619 GBP
$3,506 USD
View
12 more retailers have this diamond
Prices start from £991 GBPSave up to £1,629 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
1.05ct Radiant
£991 GBP