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Round|Natural|GIA

0.50ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6435442707

Certificate GIA 6435442707

Diamond specifications and retailer prices

From $337 AUD
As of November 5, 2026
Save $433 AUD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,791 AUD at NZ Jewellers · As of September 28, 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 GIA 6435442707. Listed at 8 retailers as of November 5, 2026, with a 128% 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

0.50
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6435442707
Dimensions5.08 × 5.09 × 3.15 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
5.08 mm5.09 mm0.50 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435442707
Side View
Table 57.0%Crown 33.5°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 62.0%

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 5
Current: $770 AUD|Low: $337 AUD|High: $786 AUD|Avg: $537 AUD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 2$337 AUD
Retailer 4$401 AUD
Retailer 5$503 AUD
Retailer 3$641 AUD
Retailer 1$770 AUD

44 data points across 5 retailers

8 retailers$337 AUD to $770 AUD

A
Cheapest Retailer
-
$337 AUD
A
Retailer 2
-
$401 AUD
View
Retailer 3
-
$467 AUD
View
Price last confirmed 36 days ago
Retailer 4
-
$521 AUD
View
Price last confirmed 38 days ago
Retailer 5
-
$629 AUD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$641 AUD
View
B
Retailer 7
-
$770 AUD
View
Most Expensive
NZ Jewellers
d8dbd034-d1b7-4a65-b90b-9af808c9b190 · Sep 28
$1,791 AUD
$1,254 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from $337 AUDSave up to $433 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
$337 AUD