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0.28ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 818693167

Shape and cutting style on the report: Round brilliant

Certificate IGI 818693167

Diamond specifications and retailer prices

From $137 NZD
As of November 6, 2026
Save $425 NZD (76%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $562 NZD at B2C Jewels · As of November 6, 2026
View at B2C Jewels

About this 0.28ct natural round diamond

This 0.28ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 818693167. Listed at 5 retailers as of November 6, 2026, with prices from $137 to $562, a $425 spread on the same certified stone. B2C Jewels lists it at $562. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.28
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.8°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 818693167
Dimensions4.20 × 4.23 × 2.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT Faint Brown
Top View
4.20 mm4.23 mm0.28 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 818693167
Side View
Table 58.0%Crown 33.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $562 NZD|Low: $137 NZD|High: $562 NZD|Avg: $372 NZD
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$137 NZD
Retailer 4$256 NZD
Retailer 3$425 NZD
Retailer 5$480 NZD
B2C Jewels$562 NZD

37 data points across 5 retailers

5 retailers$137 NZD to $562 NZD

A
Cheapest Retailer
-
$137 NZD
B+
Retailer 2
-
$256 NZD
View
B+
Retailer 3
-
$425 NZD
View
B+
Retailer 4
-
$480 NZD
View
Most Expensive
B
B2C Jewels
36867921 · Nov 6
$562 NZD
$316 USD
View
4 more retailers have this diamond
Prices start from $137 NZDSave up to $425 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
0.28ct Round
$137 NZD