CaratHunter
Plans
Radiant|Natural|IGI

0.63ct J SI1 Radiant Natural Diamond

EX • J/SI1 • IGI 774682276

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 774682276

Diamond specifications and retailer prices

From £362 GBP
As of November 1, 2026
Save £866 GBP (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,228 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.63ct natural radiant diamond

This 0.63ct natural radiant sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 774682276. Listed at 12 retailers as of November 1, 2026, with prices from £362 to £1,228, a £866 spread on the same certified stone. NZ Jewellers lists it at £1,228. 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

0.63
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.2°
Pavilion angle34°
OriginNatural
Grading LabIGI
CertificateIGI 774682276
Dimensions6.24 × 4.25 × 2.80 mm
L/W Ratio1.47
Culet sizePointed
Top View
6.24 mm4.25 mm0.63 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 774682276
Side View
Table 64.0%Crown 36.2°Girdle: MED-STKPavilion 34°Culet: NoneDepth 65.9%

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 1
Current: £1,228 GBP|Low: £362 GBP|High: £1,266 GBP|Avg: £579 GBP|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 11£362 GBP
Retailer 9£391 GBP
Retailer 4£393 GBP
Retailer 10£423 GBP
Retailer 3£424 GBP
Retailer 2£456 GBP
Retailer 6£525 GBP
Retailer 7£538 GBP
Retailer 8£586 GBP
Retailer 5£591 GBP
Retailer 12£905 GBP
NZ Jewellers£1,228 GBP

31 data points across 12 retailers

12 retailers£362 GBP to £1,228 GBP

A
Cheapest Retailer
-
£362 GBP
A
Retailer 2
-
£391 GBP
View
A
Retailer 3
-
£393 GBP
View
Final sale: no returns
A
Retailer 4
-
£423 GBP
View
Retailer 5
-
£424 GBP
View
Price last confirmed 9 days ago
A
Retailer 6
-
£456 GBP
View
B+
Retailer 7
-
£525 GBP
View
B+
Retailer 8
-
£538 GBP
View
B+
Retailer 9
-
£586 GBP
View
B+
Retailer 10
-
£591 GBP
View
B
Retailer 11
-
£905 GBP
View
Most Expensive
B
NZ Jewellers
28b49dfb-86ec-4cdf-bc00-ca1aaf6698a9 · Nov 3
£1,228 GBP
$1,644 USD
View
11 more retailers have this diamond
Prices start from £362 GBPSave up to £866 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
0.63ct Radiant
£362 GBP