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Round|Natural|GIA

0.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1545727521

Certificate GIA 1545727521

Diamond specifications and retailer prices

From $660 AUD
As of November 5, 2026
Save $1,407 AUD (68%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,954 AUD at NZ Jewellers · As of September 11, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1545727521. Listed at 22 retailers as of November 4, 2026, with a 213% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1545727521
Dimensions5.07 × 5.09 × 3.11 mm
L/W Ratio1.00
Key to symbols
Feather, Twinning Wisp
Top View
5.07 mm5.09 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545727521
Side View
Table 58.0%Crown 34°Girdle: VTK-VTKPavilion 40.8°Culet: NoneDepth 61.3%

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 5
Current: $2,811 AUD|Low: $660 AUD|High: $2,831 AUD|Avg: $1,149 AUD|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 13$660 AUD
Retailer 5$749 AUD
Retailer 6$826 AUD
Retailer 9$849 AUD
Retailer 8$863 AUD
Retailer 3$897 AUD
Retailer 4$929 AUD
Retailer 17$966 AUD
Retailer 18$966 AUD
Retailer 7$1,034 AUD
Retailer 10$1,077 AUD
Retailer 16$1,084 AUD
Retailer 11$1,087 AUD
Retailer 12$1,106 AUD
Retailer 2$1,153 AUD
Retailer 14$1,191 AUD
Retailer 15$2,067 AUD
NZ Jewellers$2,811 AUD

22 data points across 18 retailers

22 retailers$660 AUD to $2,067 AUD

A
Cheapest Retailer
-
$660 AUD
A
Retailer 2
-
$749 AUD
View
A
Retailer 3
-
$826 AUD
View
Final sale: no returns
A
Retailer 4
-
$849 AUD
View
A
Retailer 5
-
$863 AUD
View
Retailer 6
-
$897 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$897 AUD
View
A
Retailer 8
-
$929 AUD
View
Retailer 9
-
$966 AUD
View
Price last confirmed 8 days ago
Retailer 10
-
$966 AUD
View
Price last confirmed 9 days ago
Retailer 11
-
$1,034 AUD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$1,077 AUD
View
B+
Retailer 13
-
$1,084 AUD
View
Retailer 14
-
$1,087 AUD
View
Price last confirmed 60 days ago
B+
Retailer 15
-
$1,087 AUD
View
B+
Retailer 16
-
$1,106 AUD
View
B+
Retailer 17
-
$1,153 AUD
View
B+
Retailer 18
-
$1,191 AUD
View
B
Retailer 19
-
$2,067 AUD
View
Retailer 20
-
$2,811 AUD
View
Price last confirmed 11 days ago
Retailer 21
-
$2,811 AUD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
c37556e1-65eb-46b2-9c16-fc722d77a7a1 · Sep 11
$2,954 AUD
$2,068 USD
View
Price last confirmed 56 days ago
21 more retailers have this diamond
Prices start from $660 AUDSave up to $1,407 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
$660 AUD