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Radiant|Natural|IGI

1.21ct J IF Radiant Natural Diamond

VG • J/IF • IGI 809693857

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

Certificate IGI 809693857

Diamond specifications and retailer prices

From £1,165 GBP
As of November 2, 2026
Save £2,007 GBP (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,203 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 809693857. Listed at 8 retailers as of November 2, 2026, with a 172% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
J
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle52.7°
Pavilion angle35.5°
OriginNatural
Grading LabIGI
CertificateIGI 809693857
Dimensions6.91 × 5.32 × 3.71 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
6.91 mm5.32 mm1.21 ctJ / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 809693857
Side View
Table 73.0%Crown 52.7°Girdle: Slightly ThickPavilion 35.5°CuletDepth 69.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £3,172 GBP|Low: £1,164 GBP|High: £3,203 GBP|Avg: £1,724 GBP|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 3£1,165 GBP
Retailer 6£1,301 GBP
Retailer 5£1,304 GBP
Retailer 7£1,315 GBP
Retailer 2£1,360 GBP
Retailer 4£2,278 GBP
NZ Jewellers£3,172 GBP

38 data points across 7 retailers

8 retailers£1,165 GBP to £3,172 GBP

A
Cheapest Retailer
-
£1,165 GBP
B+
Retailer 2
-
£1,301 GBP
View
A
Retailer 3
-
£1,304 GBP
View
B+
Retailer 4
-
£1,315 GBP
View
B+
Retailer 5
-
£1,360 GBP
View
B+
Retailer 6
-
£2,278 GBP
View
B
Retailer 7
-
£3,172 GBP
View
Most Expensive
NZ Jewellers
a4d3a254-7e75-4c34-b6ee-7ad2b23f7a25 · Sep 20
£3,203 GBP
$4,287 USD
View
Price last confirmed 47 days ago
7 more retailers have this diamond
Prices start from £1,165 GBPSave up to £2,007 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
1.21ct Radiant
£1,165 GBP