Round|Natural|IGI

0.28ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 818693033

Shape and cutting style on the report: Round brilliant

Certificate IGI 818693033

Diamond specifications and retailer prices

From €70 EUR
As of November 6, 2026
Save €213 EUR (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €283 EUR 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 818693033. Listed at 5 retailers as of November 6, 2026, with prices from €70 to €283, a €213 spread on the same certified stone. B2C Jewels lists it at €283. 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
FluorescenceNone
Crown angle35.6°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 818693033
Dimensions4.18 × 4.21 × 2.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
4.18 mm4.21 mm0.28 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 818693033
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

Caratlytics Score

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

Last verified: Nov 6
Current: €283 EUR|Low: €70 EUR|High: €283 EUR|Avg: €188 EUR
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2€70 EUR
Retailer 4€130 EUR
Retailer 3€216 EUR
Retailer 5€241 EUR
B2C Jewels€283 EUR

36 data points across 5 retailers

5 retailers€70 EUR to €283 EUR

A
Cheapest Retailer
-
€70 EUR
B+
Retailer 2
-
€130 EUR
View
B+
Retailer 3
-
€216 EUR
View
B+
Retailer 4
-
€241 EUR
View
Most Expensive
B
B2C Jewels
36862197 · Nov 6
€283 EUR
$318 USD
View
4 more retailers have this diamond
Prices start from €70 EURSave up to €213 EUR

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
€70 EUR