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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2564538320

Certificate GIA 2564538320

Diamond specifications and retailer prices

From $563 AUD
As of November 5, 2026
Save $1,736 AUD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,298 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 2564538320. Listed at 17 retailers as of November 4, 2026, with prices from $563 to $2,298, a $1,736 spread on the same certified stone. NZ Jewellers lists it at $2,298. 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
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2564538320
Dimensions5.15 × 5.11 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
5.15 mm5.11 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564538320
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.0%

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: $2,298 AUD|Low: $563 AUD|High: $2,298 AUD|Avg: $1,029 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$563 AUD
Retailer 9$707 AUD
Retailer 3$733 AUD
Retailer 11$789 AUD
Retailer 12$789 AUD
Retailer 4$846 AUD
Retailer 5$904 AUD
Retailer 2$943 AUD
Retailer 6$1,089 AUD
Retailer 8$1,136 AUD
Retailer 10$1,691 AUD
NZ Jewellers$2,298 AUD

26 data points across 12 retailers

17 retailers$563 AUD to $2,298 AUD

A
Cheapest Retailer
-
$563 AUD
A
Retailer 2
-
$621 AUD
View
A
Retailer 3
-
$657 AUD
View
A
Retailer 4
-
$707 AUD
View
A
Retailer 5
-
$733 AUD
View
B+
Retailer 6
-
$789 AUD
View
Retailer 7
-
$789 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$846 AUD
View
B+
Retailer 9
-
$904 AUD
View
B+
Retailer 10
-
$920 AUD
View
B+
Retailer 11
-
$937 AUD
View
B+
Retailer 12
-
$943 AUD
View
B
Retailer 13
-
$1,021 AUD
View
B+
Retailer 14
-
$1,089 AUD
View
B
Retailer 15
-
$1,136 AUD
View
B
Retailer 16
-
$1,691 AUD
View
Most Expensive
B
NZ Jewellers
4b735c9f-ad37-46e8-926f-56435415096d · Nov 4
$2,298 AUD
$1,609 USD
View
16 more retailers have this diamond
Prices start from $563 AUDSave up to $1,736 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
$563 AUD