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Round|Natural|GIA

0.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2397485223

Certificate GIA 2397485223

Diamond specifications and retailer prices

From $401 AUD
As of November 6, 2026
Save $409 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,814 AUD at NZ Jewellers · As of October 26, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2397485223. Listed at 15 retailers as of November 6, 2026, with a 102% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2397485223
Dimensions5.15 × 5.13 × 3.10 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.15 mm5.13 mm0.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2397485223
Side View
Table 61.0%Crown 32.5°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 60.2%

Caratlytics Score

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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: $1,814 AUD|Low: $459 AUD|High: $1,814 AUD|Avg: $834 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$460 AUD
Retailer 2$497 AUD
Retailer 8$509 AUD
Retailer 7$529 AUD
Retailer 9$729 AUD
Retailer 4$776 AUD
Retailer 3$810 AUD
Retailer 6$1,096 AUD
NZ Jewellers$1,814 AUD

43 data points across 9 retailers

15 retailers$401 AUD to $810 AUD

A
Cheapest Retailer
-
$401 AUD
A
Retailer 2
-
$460 AUD
View
Retailer 3
-
$473 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$497 AUD
View
Retailer 5
-
$500 AUD
View
Price last confirmed 16 days ago
Retailer 6
-
$510 AUD
View
Price last confirmed 12 days ago
Retailer 7
-
$529 AUD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$599 AUD
View
Retailer 9
-
$637 AUD
View
Price last confirmed 10 days ago
Retailer 10
-
$660 AUD
View
Price last confirmed 12 days ago
Retailer 11
-
$729 AUD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$776 AUD
View
B+
Retailer 13
-
$810 AUD
View
Retailer 14
-
$1,096 AUD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
710d5dfe-f343-48a6-8018-a5cc2b709748 · Oct 26
$1,814 AUD
$1,270 USD
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $401 AUDSave up to $409 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
$401 AUD