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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2564538320

Certificate GIA 2564538320

Diamond specifications and retailer prices

From $394 USD
As of November 5, 2026
Save $1,215 USD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,609 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564538320. Listed at 17 retailers as of November 4, 2026, with prices from $394 to $1,609, a $1,215 spread on the same certified stone. NZ Jewellers lists it at $1,609. 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
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2564538320
Dimensions5.15 × 5.11 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
5.15 mm5.11 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564538320
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.0%

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 5
Current: $1,609 USD|Low: $394 USD|High: $1,609 USD|Avg: $721 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$394 USD
Retailer 9$495 USD
Retailer 3$513 USD
Retailer 11$552 USD
Retailer 12$552 USD
Retailer 4$592 USD
Retailer 5$633 USD
Retailer 2$660 USD
Retailer 6$762 USD
Retailer 8$795 USD
Retailer 10$1,184 USD
NZ Jewellers$1,609 USD

26 data points across 12 retailers

17 retailers$394 USD to $1,609 USD

A
Cheapest Retailer
-
$394 USD
A
Retailer 2
-
$435 USD
View
A
Retailer 3
-
$460 USD
View
A
Retailer 4
-
$495 USD
View
A
Retailer 5
-
$513 USD
View
B+
Retailer 6
-
$552 USD
View
Retailer 7
-
$552 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$592 USD
View
B+
Retailer 9
-
$633 USD
View
B+
Retailer 10
-
$644 USD
View
B+
Retailer 11
-
$656 USD
View
B+
Retailer 12
-
$660 USD
View
B
Retailer 13
-
$715 USD
View
B+
Retailer 14
-
$762 USD
View
B
Retailer 15
-
$795 USD
View
B
Retailer 16
-
$1,184 USD
View
Most Expensive
B
NZ Jewellers
4b735c9f-ad37-46e8-926f-56435415096d · Nov 4
$1,609 USD
View
16 more retailers have this diamond
Prices start from $394 USDSave up to $1,215 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
$394 USD