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Round|Natural|GIA

0.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6502912503

Certificate GIA 6502912503

Diamond specifications and retailer prices

From $853 AUD
$599 USD
As of November 2, 2026
Save $1,015 AUD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,197 AUD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6502912503. Listed at 16 retailers as of November 1, 2026, with a 119% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6502912503
Dimensions5.09 × 5.06 × 3.16 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.09 mm5.06 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6502912503
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.3%

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 2
Current: $1,206 AUD|Low: $853 AUD|High: $1,868 AUD|Avg: $1,180 AUD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 3$853 AUD
Retailer 10$924 AUD
Retailer 2$961 AUD
Retailer 12$995 AUD
Retailer 11$1,080 AUD
Retailer 5$1,125 AUD
Retailer 6$1,125 AUD
Retailer 13$1,145 AUD
Retailer 1$1,206 AUD
Retailer 8$1,218 AUD
Retailer 14$1,284 AUD
Retailer 7$1,441 AUD
Retailer 4$1,546 AUD
Retailer 9$1,868 AUD

7 data points across 14 retailers

16 retailers$853 AUD to $1,868 AUD

A
Cheapest Retailer
-
$853 AUD
$599 USD
Final sale: no returns
A
Retailer 2
-
$924 AUD
$649 USD
View
B+
Retailer 3
-
$961 AUD
$675 USD
View
B+
Retailer 4
-
$995 AUD
$699 USD
View
B+
Retailer 5
-
$1,066 AUD
$749 USD
View
B+
Retailer 6
-
$1,080 AUD
$758 USD
View
B+
Retailer 7
-
$1,125 AUD
$790 USD
View
B+
Retailer 8
-
$1,125 AUD
$790 USD
View
B+
Retailer 9
-
$1,145 AUD
$804 USD
View
B+
Retailer 10
-
$1,167 AUD
$820 USD
View
B+
Retailer 11
-
$1,206 AUD
£667 GBP
View
B+
Retailer 12
-
$1,218 AUD
£673 GBP
View
B+
Retailer 13
-
$1,284 AUD
£710 GBP
View
B
Retailer 14
-
$1,441 AUD
€964 EUR
View
B
Retailer 15
-
$1,868 AUD
£1,033 GBP
View
Most Expensive
NZ Jewellers
07fa4f46-aa76-4211-b36b-68fa8ef509da · Oct 30
$3,197 AUD
$2,246 USD
View
Price under review
15 more retailers have this diamond
Prices start from $853 AUDSave up to $1,015 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
$853 AUD