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Round|Natural|IGI

0.30ct K SI1 Round Natural Diamond

VG • K/SI1 • IGI 815638728

Shape and cutting style on the report: Round brilliant

Certificate IGI 815638728

Diamond specifications and retailer prices

From $196 NZD
As of November 4, 2026
Save $1,098 NZD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,293 NZD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815638728. Listed at 16 retailers as of November 4, 2026, with prices from $196 to $1,293, a $1,098 spread on the same certified stone. NZ Jewellers lists it at $1,293. 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

0.30
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.7°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 815638728
Dimensions4.25 × 4.28 × 2.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
4.25 mm4.28 mm0.30 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 815638728
Side View
Table 56.0%Crown 33.7°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 61.4%

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: $573 NZD|Low: $196 NZD|High: $665 NZD|Avg: $424 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$196 NZD
Retailer 6$294 NZD
Retailer 9$318 NZD
Retailer 10$345 NZD
Retailer 2$384 NZD
Retailer 3$418 NZD
Retailer 5$443 NZD
Retailer 8$528 NZD
Retailer 1$573 NZD
Retailer 7$656 NZD

41 data points across 10 retailers

16 retailers$196 NZD to $1,293 NZD

A
Cheapest Retailer
-
$196 NZD
B+
Retailer 2
-
$285 NZD
View
B+
Retailer 3
-
$294 NZD
View
Retailer 4
-
$308 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$318 NZD
View
B+
Retailer 6
-
$345 NZD
View
B+
Retailer 7
-
$358 NZD
View
B+
Retailer 8
-
$384 NZD
View
B+
Retailer 9
-
$418 NZD
View
B+
Retailer 10
-
$443 NZD
View
B+
Retailer 11
-
$516 NZD
View
B+
Retailer 12
-
$528 NZD
View
B+
Retailer 13
-
$573 NZD
View
B
Retailer 14
-
$656 NZD
View
B
Retailer 15
-
$667 NZD
View
Most Expensive
C
NZ Jewellers
3c22a5fe-8b57-4ff8-b232-2a8df9a8565b · Nov 4
$1,293 NZD
$727 USD
View
15 more retailers have this diamond
Prices start from $196 NZDSave up to $1,098 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
0.30ct Round
$196 NZD