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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7398147226

Certificate GIA 7398147226

Diamond specifications and retailer prices

From $509 AUD
As of November 5, 2026
Save $1,093 AUD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,663 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7398147226. Listed at 19 retailers as of November 4, 2026, with a 215% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7398147226
Dimensions5.08 × 5.05 × 3.16 mm
L/W Ratio1.01
Top View
5.08 mm5.05 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7398147226
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.3%

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 5
Current: $2,663 AUD|Low: $509 AUD|High: $2,663 AUD|Avg: $1,151 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$509 AUD
Retailer 8$700 AUD
Retailer 3$723 AUD
Retailer 5$850 AUD
Retailer 2$893 AUD
Retailer 4$937 AUD
Retailer 10$986 AUD
Retailer 7$1,077 AUD
Retailer 9$1,601 AUD
NZ Jewellers$2,663 AUD

36 data points across 10 retailers

19 retailers$509 AUD to $1,601 AUD

A
Cheapest Retailer
-
$509 AUD
A
Retailer 2
-
$657 AUD
View
A
Retailer 3
-
$694 AUD
View
Retailer 4
-
$694 AUD
View
Price last confirmed 43 days ago
A
Retailer 5
-
$700 AUD
View
B+
Retailer 6
-
$723 AUD
View
B+
Retailer 7
-
$749 AUD
View
Retailer 8
-
$749 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$801 AUD
View
Retailer 10
-
$801 AUD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
$850 AUD
View
B+
Retailer 12
-
$893 AUD
View
B+
Retailer 13
-
$906 AUD
View
B+
Retailer 14
-
$937 AUD
View
B
Retailer 15
-
$986 AUD
View
B+
Retailer 16
-
$1,077 AUD
View
B
Retailer 17
-
$1,601 AUD
View
Retailer 18
-
$2,663 AUD
View
Price under review
Most Expensive
NZ Jewellers
9570dfb4-41ea-49e6-8f3a-bc9b883c8020 · Nov 4
$2,663 AUD
$1,864 USD
View
Price under review
18 more retailers have this diamond
Prices start from $509 AUDSave up to $1,093 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
$509 AUD