CaratHunter
Plans
Radiant|Natural|IGI

0.51ct J IF Radiant Natural Diamond

VG • J/IF • IGI 774682658

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

Certificate IGI 774682658

Diamond specifications and retailer prices

From £369 GBP
$495 USD
As of November 1, 2026
Save £886 GBP (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,255 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 774682658. Listed at 12 retailers as of October 30, 2026, with prices from £369 to £1,255, a £886 spread on the same certified stone. NZ Jewellers lists it at £1,255. 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

0.51
Carat
J
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.3°
Pavilion angle36.5°
OriginNatural
Grading LabIGI
CertificateIGI 774682658
Dimensions5.71 × 3.97 × 2.71 mm
L/W Ratio1.44
Culet sizePointed
Top View
5.71 mm3.97 mm0.51 ctJ / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 774682658
Side View
Table 67.0%Crown 34.3°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 68.3%

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: £1,255 GBP|Low: £369 GBP|High: £1,288 GBP|Avg: £585 GBP|-2.5%
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 2, 2026
Retailer 6£369 GBP
Retailer 4£384 GBP
Retailer 7£400 GBP
Retailer 11£431 GBP
Retailer 12£431 GBP
Retailer 5£474 GBP
Retailer 2£538 GBP
Retailer 9£549 GBP
Retailer 3£610 GBP
Retailer 10£618 GBP
Retailer 8£923 GBP
NZ Jewellers£1,255 GBP

30 data points across 12 retailers

12 retailers£369 GBP to £1,255 GBP

A
Cheapest Retailer
-
£369 GBP
$495 USD
A
Retailer 2
-
£384 GBP
$514 USD
View
Final sale: no returns
A
Retailer 3
-
£400 GBP
$536 USD
View
A
Retailer 4
-
£431 GBP
$578 USD
View
A
Retailer 5
-
£431 GBP
$578 USD
View
B+
Retailer 6
-
£474 GBP
View
B+
Retailer 7
-
£538 GBP
€687 EUR
View
B
Retailer 8
-
£549 GBP
$735 USD
View
B+
Retailer 9
-
£610 GBP
$817 USD
View
B+
Retailer 10
-
£618 GBP
ZAR 13,374 ZAR
View
B
Retailer 11
-
£923 GBP
View
Most Expensive
B
NZ Jewellers
0f5c49ae-7748-4dfc-b3b5-53886f3852f4 · Oct 30
£1,255 GBP
$1,682 USD
View
11 more retailers have this diamond
Prices start from £369 GBPSave up to £886 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
0.51ct Radiant
£369 GBP