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Round|Natural|GIA

0.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1529293923

Certificate GIA 1529293923

Diamond specifications and retailer prices

From $627 AUD
As of November 6, 2026
Save $2,063 AUD (77%) vs most expensive(unlock to see where)
35 retailers carry this diamond
Most expensive: $2,771 AUD at NZ Jewellers · As of October 20, 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 1529293923. Listed at 35 retailers as of November 4, 2026, with a 329% 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 angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1529293923
Dimensions5.10 × 5.07 × 3.19 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
5.10 mm5.07 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529293923
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.6%

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: $627 AUD|Low: $627 AUD|High: $2,638 AUD|Avg: $1,187 AUD|-6.0%
Retailer 1
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
November 6, 2026
Retailer 1$627 AUD
Retailer 8$749 AUD
Retailer 6$790 AUD
Retailer 5$811 AUD
Retailer 3$857 AUD
Retailer 13$857 AUD
Retailer 9$919 AUD
Retailer 2$924 AUD
Retailer 16$924 AUD
Retailer 7$1,016 AUD
Retailer 10$1,037 AUD
Retailer 15$1,046 AUD
Retailer 12$1,060 AUD
Retailer 11$1,149 AUD
Retailer 14$1,977 AUD
Retailer 4$2,611 AUD

30 data points across 16 retailers

35 retailers$627 AUD to $2,690 AUD

A
Cheapest Retailer
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$627 AUD
A
Retailer 2
-
$749 AUD
View
A
Retailer 3
-
$790 AUD
View
Final sale: no returns
A
Retailer 4
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$811 AUD
View
A
Retailer 5
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$857 AUD
View
A
Retailer 6
-
$857 AUD
View
Retailer 7
-
$884 AUD
View
Price last confirmed 17 days ago
Retailer 8
-
$884 AUD
View
Price last confirmed 50 days ago
Retailer 9
-
$884 AUD
View
Price last confirmed 29 days ago
Retailer 10
-
$884 AUD
View
Price last confirmed 36 days ago
Retailer 11
-
$884 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$919 AUD
View
Retailer 13
-
$924 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
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$924 AUD
View
A
Retailer 15
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$924 AUD
View
Retailer 16
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$951 AUD
View
Price last confirmed 22 days ago
Retailer 17
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$951 AUD
View
Price last confirmed 21 days ago
Retailer 18
-
$951 AUD
View
Price last confirmed 26 days ago
B+
Retailer 19
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$990 AUD
View
B+
Retailer 20
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$1,016 AUD
View
Retailer 21
-
$1,020 AUD
View
Price last confirmed 49 days ago
Retailer 22
-
$1,020 AUD
View
Price last confirmed 17 days ago
Retailer 23
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$1,020 AUD
View
Price last confirmed 29 days ago
Retailer 24
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$1,020 AUD
View
Price last confirmed 33 days ago
B+
Retailer 25
-
$1,037 AUD
View
B+
Retailer 26
-
$1,046 AUD
View
B+
Retailer 27
-
$1,060 AUD
View
B+
Retailer 28
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$1,149 AUD
View
B
Retailer 29
-
$1,977 AUD
View
Retailer 30
-
$2,611 AUD
View
Price last confirmed 9 days ago
B
Retailer 31
-
$2,690 AUD
View
Retailer 32
-
$2,771 AUD
View
Price last confirmed 48 days ago
Retailer 33
-
$2,771 AUD
View
Price last confirmed 34 days ago
Retailer 34
-
$2,771 AUD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
c9b812a1-e545-4aa2-8e8a-0512ff2ee6a5 · Oct 20
$2,771 AUD
$1,940 USD
View
Price last confirmed 17 days ago
34 more retailers have this diamond
Prices start from $627 AUDSave up to $2,063 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
$627 AUD