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Round|Natural|GIA

0.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6551115273

Certificate GIA 6551115273

Diamond specifications and retailer prices

From $933 AUD
As of November 4, 2026
Save $1,110 AUD (54%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,503 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551115273. Listed at 24 retailers as of November 4, 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551115273
Dimensions5.12 × 3.08 × 3.08 mm
L/W Ratio1.66
Top View
5.12 mm3.08 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551115273
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.0%

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 4
Current: $1,314 AUD|Low: $933 AUD|High: $2,830 AUD|Avg: $1,504 AUD|+3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$933 AUD
Retailer 6$950 AUD
Retailer 8$993 AUD
Retailer 9$1,011 AUD
Retailer 1$1,314 AUD
Retailer 2$1,414 AUD
Retailer 3$1,568 AUD
Retailer 4$2,043 AUD
Retailer 5$2,820 AUD

41 data points across 9 retailers

24 retailers$933 AUD to $2,043 AUD

A
Cheapest Retailer
-
$933 AUD
Final sale: no returns
A
Retailer 2
-
$943 AUD
View
A
Retailer 3
-
$950 AUD
View
B+
Retailer 4
-
$993 AUD
View
Retailer 5
-
$1,011 AUD
View
Price last confirmed 62 days ago
Retailer 6
-
$1,011 AUD
View
Price last confirmed 29 days ago
Retailer 7
-
$1,011 AUD
View
Price last confirmed 50 days ago
Retailer 8
-
$1,011 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
$1,050 AUD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$1,164 AUD
View
Retailer 11
-
$1,167 AUD
View
Price last confirmed 45 days ago
Retailer 12
-
$1,167 AUD
View
Price last confirmed 28 days ago
Retailer 13
-
$1,167 AUD
View
Price last confirmed 60 days ago
B
Retailer 14
-
$1,229 AUD
View
B
Retailer 15
-
$1,229 AUD
View
B
Retailer 16
-
$1,271 AUD
View
B+
Retailer 17
-
$1,314 AUD
View
B+
Retailer 18
-
$1,414 AUD
View
B
Retailer 19
-
$1,568 AUD
View
B
Retailer 20
-
$2,043 AUD
View
Retailer 21
-
$2,820 AUD
View
Price last confirmed 9 days ago
Retailer 22
-
$3,503 AUD
View
Price under review
Retailer 23
-
$3,503 AUD
View
Price under review
Most Expensive
NZ Jewellers
b1bea2c6-789a-4639-98e1-2f446abd6b50 · Sep 24
$3,503 AUD
$2,452 USD
View
Price under review
23 more retailers have this diamond
Prices start from $933 AUDSave up to $1,110 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
$933 AUD