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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

ID • I/SI1 • GIA 029

Certificate GIA 029

Diamond specifications and retailer prices

From $569 AUD
As of November 6, 2026
Save $1,851 AUD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,420 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 17 retailers as of November 4, 2026, with a 325% 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 029
Dimensions5.13 × 5.14 × 3.14 mm
L/W Ratio1.00
Top View
5.13 mm5.14 mm0.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 029
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.9%

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 6
Current: $2,420 AUD|Low: $546 AUD|High: $2,464 AUD|Avg: $994 AUD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2$569 AUD
Retailer 12$652 AUD
Retailer 13$659 AUD
Retailer 3$710 AUD
Retailer 9$771 AUD
Retailer 6$811 AUD
Retailer 8$831 AUD
Retailer 7$891 AUD
Retailer 11$1,039 AUD
Retailer 10$1,071 AUD
Retailer 4$1,291 AUD
Retailer 5$1,358 AUD
NZ Jewellers$2,420 AUD

18 data points across 13 retailers

17 retailers$569 AUD to $2,420 AUD

A
Cheapest Retailer
-
$569 AUD
A
Retailer 2
-
$652 AUD
View
A
Retailer 3
-
$659 AUD
View
A
Retailer 4
-
$710 AUD
View
Final sale: no returns
A
Retailer 5
-
$771 AUD
View
Retailer 6
-
$771 AUD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$811 AUD
View
A
Retailer 8
-
$831 AUD
View
Retailer 9
-
$831 AUD
View
Price last confirmed 12 days ago
A
Retailer 10
-
$891 AUD
View
Retailer 11
-
$891 AUD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$1,039 AUD
View
Retailer 13
-
$1,071 AUD
View
Price last confirmed 11 days ago
Retailer 14
-
$1,291 AUD
View
Price last confirmed 16 days ago
B+
Retailer 15
-
$1,358 AUD
View
B
Retailer 16
-
$2,420 AUD
View
Most Expensive
NZ Jewellers
f485ba37-cdda-491a-a342-b36c0c4ed4cc · Oct 26
$2,420 AUD
$1,663 USD
View
Price last confirmed 10 days ago
16 more retailers have this diamond
Prices start from $569 AUDSave up to $1,851 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
$569 AUD