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Round|Natural|GIA

0.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1186652488

Certificate GIA 1186652488

Diamond specifications and retailer prices

From $1,076 AUD
As of October 30, 2026
Save $46 AUD (4%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,380 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1186652488. Listed at 16 retailers as of October 30, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1186652488
Dimensions5.09 × 5.05 × 3.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1186652488
Top View
5.09 mm5.05 mm0.50 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1186652488
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,380 AUD|Low: $900 AUD|High: $3,380 AUD|Avg: $1,428 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 7$900 AUD
Retailer 3$977 AUD
Retailer 10$977 AUD
Retailer 8$1,014 AUD
Retailer 9$1,076 AUD
Retailer 2$1,121 AUD
Retailer 11$1,127 AUD
Retailer 6$1,351 AUD
Retailer 4$1,401 AUD
Retailer 5$1,977 AUD
NZ Jewellers$3,380 AUD

38 data points across 11 retailers

16 retailers$1,076 AUD to $1,121 AUD

Retailer 1
-
$891 AUD
Price last confirmed 10 days ago
Retailer 2
-
$977 AUD
View
Price last confirmed 12 days ago
Retailer 3
-
$977 AUD
View
Price last confirmed 12 days ago
Retailer 4
-
$986 AUD
View
Price last confirmed 12 days ago
Retailer 5
-
$1,014 AUD
View
Price last confirmed 12 days ago
B
Retailer 6
-
$1,076 AUD
View
B+
Retailer 7
-
$1,121 AUD
View
Retailer 8
-
$1,127 AUD
View
Price last confirmed 10 days ago
Retailer 9
-
$1,240 AUD
View
Price last confirmed 11 days ago
Retailer 10
-
$1,296 AUD
View
Price last confirmed 9 days ago
Retailer 11
-
$1,351 AUD
View
Price last confirmed 11 days ago
Retailer 12
-
$1,401 AUD
View
Price last confirmed 7 days ago
Retailer 13
-
$1,508 AUD
View
Price last confirmed 11 days ago
Retailer 14
-
$1,977 AUD
View
Price last confirmed 11 days ago
Retailer 15
-
$3,110 AUD
View
Price under review
Most Expensive
NZ Jewellers
bc62ce9a-131a-4946-9f68-65edb1d5b57e · Oct 26
$3,380 AUD
$2,366 USD
View
Price under review
15 more retailers have this diamond
Prices start from $1,076 AUDSave up to $46 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.

B+
0.50ct Round
$1,076 AUD