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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 $705 AUD
$495 USD
As of November 1, 2026
Save $1,690 AUD (71%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,394 AUD 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 $705 to $2,394, a $1,690 spread on the same certified stone. NZ Jewellers lists it at $2,394. 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: $2,394 AUD|Low: $705 AUD|High: $2,457 AUD|Avg: $1,116 AUD|-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$705 AUD
Retailer 4$732 AUD
Retailer 7$763 AUD
Retailer 11$823 AUD
Retailer 12$823 AUD
Retailer 5$905 AUD
Retailer 2$1,027 AUD
Retailer 9$1,046 AUD
Retailer 3$1,163 AUD
Retailer 10$1,179 AUD
Retailer 8$1,761 AUD
NZ Jewellers$2,394 AUD

30 data points across 12 retailers

12 retailers$705 AUD to $2,394 AUD

A
Cheapest Retailer
-
$705 AUD
$495 USD
A
Retailer 2
-
$732 AUD
$514 USD
View
Final sale: no returns
A
Retailer 3
-
$763 AUD
$536 USD
View
A
Retailer 4
-
$823 AUD
$578 USD
View
A
Retailer 5
-
$823 AUD
$578 USD
View
B+
Retailer 6
-
$905 AUD
£501 GBP
View
B+
Retailer 7
-
$1,027 AUD
€687 EUR
View
B
Retailer 8
-
$1,046 AUD
$735 USD
View
B+
Retailer 9
-
$1,163 AUD
$817 USD
View
B+
Retailer 10
-
$1,179 AUD
ZAR 13,374 ZAR
View
B
Retailer 11
-
$1,761 AUD
£974 GBP
View
Most Expensive
B
NZ Jewellers
0f5c49ae-7748-4dfc-b3b5-53886f3852f4 · Oct 30
$2,394 AUD
$1,682 USD
View
11 more retailers have this diamond
Prices start from $705 AUDSave up to $1,690 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
0.51ct Radiant
$705 AUD