Radiant|Natural|IGI

0.31ct J IF Radiant Natural Diamond

VG • J/IF • IGI 831668590

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

Certificate IGI 831668590

Diamond specifications and retailer prices

From $491 AUD
$345 USD
As of November 1, 2026
Save $764 AUD (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,084 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural radiant diamond

This 0.31ct natural radiant sits in the sub-half-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 831668590. Listed at 13 retailers as of November 1, 2026, with a 155% 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

0.31
Carat
J
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle21.1°
Pavilion angle37.6°
OriginNatural
Grading LabIGI
CertificateIGI 831668590
Dimensions4.75 × 3.42 × 2.35 mm
L/W Ratio1.39
Top View
4.75 mm3.42 mm0.31 ctJ / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 831668590
Side View
Table 64.0%Crown 21.1°Girdle: Slightly ThickPavilion 37.6°Culet: NoneDepth 68.7%

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: $2,084 AUD|Low: $491 AUD|High: $2,123 AUD|Avg: $856 AUD|-1.8%
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 2, 2026
Retailer 7$491 AUD
Retailer 5$544 AUD
Retailer 10$575 AUD
Retailer 3$587 AUD
Retailer 4$608 AUD
Retailer 6$690 AUD
Retailer 11$732 AUD
Retailer 12$764 AUD
Retailer 13$843 AUD
Retailer 2$883 AUD
Retailer 8$991 AUD
Retailer 9$1,255 AUD
NZ Jewellers$2,084 AUD

23 data points across 13 retailers

13 retailers$491 AUD to $1,255 AUD

A
Cheapest Retailer
-
$491 AUD
$345 USD
B+
Retailer 2
-
$544 AUD
$382 USD
View
B+
Retailer 3
-
$575 AUD
SGD 546 SGD
View
B+
Retailer 4
-
$587 AUD
$412 USD
View
B+
Retailer 5
-
$608 AUD
$427 USD
View
B
Retailer 6
-
$690 AUD
£382 GBP
View
B
Retailer 7
-
$732 AUD
$514 USD
View
B+
Retailer 8
-
$764 AUD
$537 USD
View
B
Retailer 9
-
$843 AUD
ZAR 9,567 ZAR
View
B
Retailer 10
-
$883 AUD
€591 EUR
View
B
Retailer 11
-
$991 AUD
£548 GBP
View
B
Retailer 12
-
$1,255 AUD
£694 GBP
View
Most Expensive
NZ Jewellers
8da9cf63-8ee3-4be3-aad4-93071c630ffb · Oct 30
$2,084 AUD
$1,464 USD
View
Price under review
12 more retailers have this diamond
Prices start from $491 AUDSave up to $764 AUD

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
0.31ct Radiant
$491 AUD