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Round|Natural|IGI

0.50ct M SI2 Round Natural Diamond

EX • M/SI2 • IGI 508145636

Shape and cutting style on the report: Round brilliant

Certificate IGI 508145636

Diamond specifications and retailer prices

From $307 AUD
As of November 4, 2026
Save $1,086 AUD (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,393 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 508145636. Listed at 7 retailers as of November 4, 2026, with prices from $307 to $1,393, a $1,086 spread on the same certified stone. NZ Jewellers lists it at $1,393. 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

0.50
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 508145636
Dimensions5.04 × 5.09 × 3.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.04 mm5.09 mm0.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 508145636
Side View
Table 58.5%Crown 36°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.9%

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 4
Current: $1,393 AUD|Low: $204 AUD|High: $1,393 AUD|Avg: $513 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10$204 AUD
Retailer 4$307 AUD
Retailer 6$331 AUD
Retailer 3$343 AUD
Retailer 5$414 AUD
Retailer 9$461 AUD
Retailer 8$493 AUD
Retailer 2$543 AUD
Retailer 7$610 AUD
NZ Jewellers$1,393 AUD

15 data points across 10 retailers

7 retailers$307 AUD to $1,393 AUD

A
Cheapest Retailer
-
$307 AUD
Retailer 2
-
$331 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$343 AUD
View
B+
Retailer 4
-
$414 AUD
View
B+
Retailer 5
-
$493 AUD
View
B+
Retailer 6
-
$543 AUD
View
Most Expensive
C
NZ Jewellers
56be40c1-fcae-4308-8e3e-bb96fec8cd29 · Nov 4
$1,393 AUD
$975 USD
View
6 more retailers have this diamond
Prices start from $307 AUDSave up to $1,086 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
0.50ct Round
$307 AUD