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Round|Natural|IGI

0.50ct K SI1 Round Natural Diamond

VG • K/SI1 • IGI 815637045

Shape and cutting style on the report: Round brilliant

Certificate IGI 815637045

Diamond specifications and retailer prices

From $544 NZD
As of November 4, 2026
Save $1,541 NZD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,085 NZD 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 very-good cut grade and certified by IGI 815637045. Listed at 16 retailers as of November 4, 2026, with prices from $544 to $2,085, a $1,541 spread on the same certified stone. NZ Jewellers lists it at $2,085. 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
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 815637045
Dimensions4.99 × 5.03 × 3.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
4.99 mm5.03 mm0.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 815637045
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.6%

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 4
Current: $699 NZD|Low: $578 NZD|High: $1,272 NZD|Avg: $784 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$578 NZD
Retailer 8$578 NZD
Retailer 10$607 NZD
Retailer 1$699 NZD
Retailer 3$712 NZD
Retailer 4$745 NZD
Retailer 7$838 NZD
Retailer 5$916 NZD
Retailer 6$943 NZD
Retailer 9$1,261 NZD

43 data points across 10 retailers

16 retailers$544 NZD to $2,085 NZD

A
Cheapest Retailer
-
$544 NZD
Retailer 2
-
$578 NZD
View
Price last confirmed 16 days ago
Retailer 3
-
$585 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$607 NZD
View
B+
Retailer 5
-
$699 NZD
View
B+
Retailer 6
-
$712 NZD
View
B+
Retailer 7
-
$731 NZD
View
B+
Retailer 8
-
$745 NZD
View
Retailer 9
-
$752 NZD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$776 NZD
View
Retailer 11
-
$838 NZD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$905 NZD
View
B+
Retailer 13
-
$916 NZD
View
B+
Retailer 14
-
$943 NZD
View
Retailer 15
-
$1,261 NZD
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
0393634c-e239-4a05-9dab-ce5cf1fd9e2b · Nov 4
$2,085 NZD
$1,172 USD
View
15 more retailers have this diamond
Prices start from $544 NZDSave up to $1,541 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
$544 NZD