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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1453131886

Certificate GIA 1453131886

Diamond specifications and retailer prices

From $694 AUD
As of November 4, 2026
Save $909 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,663 AUD at NZ Jewellers · As of September 24, 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 1453131886. Listed at 18 retailers as of November 2, 2026, with a 131% 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1453131886
Dimensions5.12 × 5.09 × 3.13 mm
L/W Ratio1.01
Key to symbols
Twinning Wisp
Top View
5.12 mm5.09 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1453131886
Side View
Table 57.0%Crown 34°Girdle: THN-STKPavilion 41°Culet: NoneDepth 61.2%

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 4
Current: $2,663 AUD|Low: $694 AUD|High: $2,663 AUD|Avg: $1,187 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 10$694 AUD
Retailer 7$707 AUD
Retailer 3$723 AUD
Retailer 4$850 AUD
Retailer 2$893 AUD
Retailer 8$986 AUD
Retailer 5$1,039 AUD
Retailer 6$1,077 AUD
Retailer 9$1,603 AUD
NZ Jewellers$2,663 AUD

39 data points across 10 retailers

18 retailers$694 AUD to $1,603 AUD

A
Cheapest Retailer
-
$694 AUD
Retailer 2
-
$694 AUD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$707 AUD
View
B+
Retailer 4
-
$723 AUD
View
B+
Retailer 5
-
$749 AUD
View
Retailer 6
-
$749 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$801 AUD
View
Retailer 8
-
$801 AUD
View
Price last confirmed 45 days ago
B+
Retailer 9
-
$850 AUD
View
B+
Retailer 10
-
$881 AUD
View
B+
Retailer 11
-
$893 AUD
View
B+
Retailer 12
-
$906 AUD
View
B
Retailer 13
-
$986 AUD
View
B
Retailer 14
-
$1,039 AUD
View
B+
Retailer 15
-
$1,077 AUD
View
B
Retailer 16
-
$1,603 AUD
View
Retailer 17
-
$2,663 AUD
View
Price under review
Most Expensive
NZ Jewellers
330fd32f-c173-494c-acba-a0e135a55120 · Sep 24
$2,663 AUD
$1,864 USD
View
Price under review
17 more retailers have this diamond
Prices start from $694 AUDSave up to $909 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
$694 AUD