Round|Natural|GIA

0.50ct K SI2 Round Natural Diamond

GD • K/SI2 • GIA 6301959433

Certificate GIA 6301959433

Diamond specifications and retailer prices

From $345 USD
As of November 4, 2026
Save $592 USD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,556 USD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a standard cut grade and certified by GIA 6301959433. Listed at 14 retailers as of November 1, 2026, with a 172% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
K
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6301959433
Dimensions4.89 × 4.85 × 3.21 mm
L/W Ratio1.01
Top View
4.89 mm4.85 mm0.50 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6301959433
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.9%

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: Nov 4
Current: $1,556 USD|Low: $281 USD|High: $1,556 USD|Avg: $531 USD|+20.2%
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
November 2, 2026
Retailer 15$345 USD
Retailer 7$389 USD
Retailer 16$406 USD
Retailer 4$424 USD
Retailer 2$430 USD
Retailer 3$437 USD
Retailer 5$437 USD
Retailer 12$468 USD
Retailer 6$497 USD
Retailer 9$528 USD
Retailer 14$536 USD
Retailer 8$559 USD
Retailer 13$565 USD
Retailer 11$652 USD
Retailer 10$937 USD
NZ Jewellers$1,556 USD

25 data points across 16 retailers

14 retailers$345 USD to $937 USD

B+
Cheapest Retailer
-
$345 USD
B+
Retailer 2
-
$406 USD
View
Retailer 3
-
$424 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$430 USD
View
B+
Retailer 5
-
$437 USD
View
Retailer 6
-
$437 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$468 USD
View
B+
Retailer 8
-
$497 USD
View
B
Retailer 9
-
$528 USD
View
B
Retailer 10
-
$536 USD
View
B
Retailer 11
-
$565 USD
View
B
Retailer 12
-
$652 USD
View
C
Retailer 13
-
$937 USD
View
Most Expensive
NZ Jewellers
b838cf58-c598-4252-a4b5-8b0977bec4e8 · Oct 30
$1,556 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from $345 USDSave up to $592 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.

B+
0.50ct Round
$345 USD