Round|Natural|GIA

0.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1553573912

Certificate GIA 1553573912

Diamond specifications and retailer prices

From $363 USD
As of November 6, 2026
Save $771 USD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,892 USD at NZ Jewellers · As of November 4, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553573912. Listed at 19 retailers as of November 4, 2026, with a 212% 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1553573912
Dimensions5.06 × 5.03 × 3.20 mm
L/W Ratio1.01
Top View
5.06 mm5.03 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553573912
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NDepth 63.4%

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 6
Current: $1,892 USD|Low: $363 USD|High: $1,918 USD|Avg: $691 USD|-1.4%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 10$363 USD
Retailer 7$422 USD
Retailer 16$494 USD
Retailer 8$527 USD
Retailer 5$529 USD
Retailer 9$539 USD
Retailer 13$570 USD
Retailer 15$605 USD
Retailer 12$625 USD
Retailer 11$635 USD
Retailer 14$668 USD
Retailer 6$677 USD
Retailer 2$683 USD
Retailer 4$695 USD
Retailer 17$762 USD
Retailer 3$1,134 USD
NZ Jewellers$1,892 USD

21 data points across 17 retailers

19 retailers$363 USD to $1,134 USD

A
Cheapest Retailer
-
$363 USD
A
Retailer 2
-
$422 USD
View
Retailer 3
-
$430 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$494 USD
View
Retailer 5
-
$527 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$529 USD
View
Retailer 7
-
$539 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$570 USD
View
B+
Retailer 9
-
$605 USD
View
B+
Retailer 10
-
$625 USD
View
B+
Retailer 11
-
$635 USD
View
B+
Retailer 12
-
$668 USD
View
B
Retailer 13
-
$677 USD
View
B+
Retailer 14
-
$683 USD
View
B
Retailer 15
-
$695 USD
View
Retailer 16
-
$759 USD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
$762 USD
View
B
Retailer 18
-
$1,134 USD
View
Most Expensive
NZ Jewellers
adcef4de-dd2a-4de0-8e03-3f099f5bc2ce · Nov 4
$1,892 USD
View
Price under review
18 more retailers have this diamond
Prices start from $363 USDSave up to $771 USD

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
$363 USD