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 $110 USD
As of November 4, 2026
Save $617 USD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $727 USD 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 $110 to $727, a $617 spread on the same certified stone. NZ Jewellers lists it at $727. 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
Color
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: $322 USD|Low: $110 USD|High: $374 USD|Avg: $238 USD|-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$110 USD
Retailer 6$165 USD
Retailer 9$179 USD
Retailer 10$194 USD
Retailer 2$216 USD
Retailer 3$235 USD
Retailer 5$249 USD
Retailer 8$297 USD
Retailer 1$322 USD
Retailer 7$369 USD

41 data points across 10 retailers

16 retailers$110 USD to $727 USD

A
Cheapest Retailer
-
$110 USD
B+
Retailer 2
-
$160 USD
View
B+
Retailer 3
-
$165 USD
View
Retailer 4
-
$173 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$179 USD
View
B+
Retailer 6
-
$194 USD
View
B+
Retailer 7
-
$201 USD
View
B+
Retailer 8
-
$216 USD
View
B+
Retailer 9
-
$235 USD
View
B+
Retailer 10
-
$249 USD
View
B+
Retailer 11
-
$290 USD
View
B+
Retailer 12
-
$297 USD
View
B+
Retailer 13
-
$322 USD
View
B
Retailer 14
-
$369 USD
View
B
Retailer 15
-
$375 USD
View
Most Expensive
C
NZ Jewellers
3c22a5fe-8b57-4ff8-b232-2a8df9a8565b · Nov 4
$727 USD
View
15 more retailers have this diamond
Prices start from $110 USDSave up to $617 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
0.30ct Round
$110 USD