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Round|Natural|IGI

0.53ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 815686500

Shape and cutting style on the report: Round brilliant

Certificate IGI 815686500

Diamond specifications and retailer prices

From $309 AUD
As of November 6, 2026
Save $673 AUD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,751 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 0.53ct natural round diamond

This 0.53ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 815686500. Listed at 10 retailers as of November 1, 2026, with a 218% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.53
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 815686500
Dimensions5.18 × 5.22 × 3.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.18 mm5.22 mm0.53 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815686500
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 41°Culet: NoneDepth 61.3%

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 6
Current: $309 AUD|Low: $309 AUD|High: $1,079 AUD|Avg: $611 AUD|-12.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$309 AUD
Retailer 6$466 AUD
Retailer 7$503 AUD
Retailer 4$580 AUD
Retailer 2$604 AUD
Retailer 3$714 AUD
Retailer 5$981 AUD

42 data points across 7 retailers

10 retailers$309 AUD to $981 AUD

A
Cheapest Retailer
-
$309 AUD
Retailer 2
-
$457 AUD
View
Price last confirmed 36 days ago
Retailer 3
-
$466 AUD
View
Price last confirmed 8 days ago
Retailer 4
-
$513 AUD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$580 AUD
View
A
Retailer 6
-
$604 AUD
View
Retailer 7
-
$616 AUD
View
Price last confirmed 35 days ago
A
Retailer 8
-
$714 AUD
View
B+
Retailer 9
-
$981 AUD
View
Most Expensive
NZ Jewellers
b7294b10-3c03-44c8-b30b-2c0b72bcdc6a · Oct 3
$1,751 AUD
$1,226 USD
View
Price last confirmed 34 days ago
9 more retailers have this diamond
Prices start from $309 AUDSave up to $673 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
0.53ct Round
$309 AUD