Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6505375298

Certificate GIA 6505375298

Diamond specifications and retailer prices

From $574 CAD
As of November 5, 2026
Save $1,883 CAD (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,457 CAD 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505375298. Listed at 19 retailers as of November 4, 2026, with prices from $574 to $2,457, a $1,883 spread on the same certified stone. NZ Jewellers lists it at $2,457. 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
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6505375298
Dimensions5.08 × 5.06 × 3.17 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.08 mm5.06 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6505375298
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.5%

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 5
Current: $2,457 CAD|Low: $574 CAD|High: $2,457 CAD|Avg: $1,245 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$574 CAD
Retailer 7$789 CAD
Retailer 2$816 CAD
Retailer 5$945 CAD
Retailer 4$1,047 CAD
Retailer 9$1,054 CAD
Retailer 6$1,208 CAD
Retailer 8$1,807 CAD
NZ Jewellers$2,457 CAD

38 data points across 9 retailers

19 retailers$574 CAD to $2,457 CAD

A
Cheapest Retailer
-
$574 CAD
B+
Retailer 2
-
$742 CAD
View
B+
Retailer 3
-
$783 CAD
View
Retailer 4
-
$783 CAD
View
Price last confirmed 43 days ago
B+
Retailer 5
-
$789 CAD
View
B+
Retailer 6
-
$816 CAD
View
Retailer 7
-
$844 CAD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$844 CAD
View
B+
Retailer 9
-
$904 CAD
View
Retailer 10
-
$904 CAD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
$945 CAD
View
B
Retailer 12
-
$966 CAD
View
B
Retailer 13
-
$1,028 CAD
View
B+
Retailer 14
-
$1,047 CAD
View
B
Retailer 15
-
$1,054 CAD
View
B
Retailer 16
-
$1,208 CAD
View
B
Retailer 17
-
$1,807 CAD
View
Retailer 18
-
$2,457 CAD
View
Price last confirmed 43 days ago
Most Expensive
B
NZ Jewellers
405abf71-43c0-4f79-85d8-3369ef7c483a · Nov 4
$2,457 CAD
$1,759 USD
View
18 more retailers have this diamond
Prices start from $574 CADSave up to $1,883 CAD

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
$574 CAD