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Round|Natural|GIA

0.50ct K I1 Round Natural Diamond

EX • K/I1 • GIA 6455170204

Certificate GIA 6455170204

Diamond specifications and retailer prices

From $423 NZD
As of November 5, 2026
Save $669 NZD (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,259 NZD at NZ Jewellers · As of September 24, 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 6455170204. Listed at 7 retailers as of November 5, 2026, with a 158% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.50
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6455170204
Dimensions5.04 × 5.07 × 3.18 mm
L/W Ratio1.01
Top View
5.04 mm5.07 mm0.50 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6455170204
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

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: $423 NZD|Low: $423 NZD|High: $1,099 NZD|Avg: $755 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 1$423 NZD
Retailer 3$633 NZD
Retailer 4$872 NZD
Retailer 2$1,092 NZD

38 data points across 4 retailers

7 retailers$423 NZD to $1,092 NZD

A
Cheapest Retailer
-
$423 NZD
Retailer 2
-
$589 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$658 NZD
View
Price last confirmed 38 days ago
Retailer 4
-
$793 NZD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
$872 NZD
View
B+
Retailer 6
-
$1,092 NZD
View
Most Expensive
NZ Jewellers
26c67e5a-c5d0-4fda-be7b-41622d386081 · Sep 24
$2,259 NZD
$1,270 USD
View
Price last confirmed 43 days ago
6 more retailers have this diamond
Prices start from $423 NZDSave up to $669 NZD

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
$423 NZD