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Radiant|Natural|IGI

0.51ct E SI2 Radiant Natural Diamond

VG • E/SI2 • IGI 692555295

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

Certificate IGI 692555295

Diamond specifications and retailer prices

From $490 AUD
As of November 6, 2026
Save $2,084 AUD (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,575 AUD at NZ Jewellers · As of November 5, 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 692555295. Listed at 7 retailers as of November 5, 2026, with prices from $490 to $2,575, a $2,084 spread on the same certified stone. NZ Jewellers lists it at $2,575. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.2°
Pavilion angle31.1°
OriginNatural
Grading LabIGI
CertificateIGI 692555295
Dimensions5.17 × 3.85 × 2.75 mm
L/W Ratio1.34
Culet sizePointed
Top View
5.17 mm3.85 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 692555295
Side View
Table 62.0%Crown 45.2°Girdle: MED-THKPavilion 31.1°Culet: NoneDepth 71.4%

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 6
Current: $2,575 AUD|Low: $490 AUD|High: $2,666 AUD|Avg: $1,160 AUD|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3$490 AUD
Retailer 8$768 AUD
Retailer 5$841 AUD
Retailer 7$862 AUD
Retailer 6$943 AUD
Retailer 4$1,009 AUD
Retailer 2$1,543 AUD
NZ Jewellers$2,575 AUD

44 data points across 8 retailers

7 retailers$490 AUD to $2,575 AUD

A
Cheapest Retailer
-
$490 AUD
A
Retailer 2
-
$841 AUD
View
B+
Retailer 3
-
$862 AUD
View
B+
Retailer 4
-
$943 AUD
View
B+
Retailer 5
-
$1,009 AUD
View
B
Retailer 6
-
$1,543 AUD
View
Most Expensive
C
NZ Jewellers
7ef74ef2-1288-43ed-beae-3ddb104ffe56 · Nov 5
$2,575 AUD
$1,769 USD
View
6 more retailers have this diamond
Prices start from $490 AUDSave up to $2,084 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
$490 AUD