Round|Natural|IGI

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 800674294

Shape and cutting style on the report: Round brilliant

Certificate IGI 800674294

Diamond specifications and retailer prices

From €228 EUR
As of November 4, 2026
Save €806 EUR (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,034 EUR at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct 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 800674294. Listed at 13 retailers as of November 4, 2026, with prices from €228 to €1,034, a €806 spread on the same certified stone. NZ Jewellers lists it at €1,034. 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

0.45
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 800674294
Dimensions4.88 × 4.91 × 3.08 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
4.88 mm4.91 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 800674294
Side View
Table 57.0%Crown 34°Girdle: MediumPavilion 41.7°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €1,034 EUR|Low: €228 EUR|High: €1,034 EUR|Avg: €388 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 5€228 EUR
Retailer 9€233 EUR
Retailer 4€238 EUR
Retailer 14€246 EUR
Retailer 12€254 EUR
Retailer 13€307 EUR
Retailer 7€323 EUR
Retailer 3€345 EUR
Retailer 8€356 EUR
Retailer 6€390 EUR
Retailer 2€442 EUR
Retailer 11€468 EUR
Retailer 10€527 EUR
NZ Jewellers€1,034 EUR

29 data points across 14 retailers

13 retailers€228 EUR to €1,034 EUR

A
Cheapest Retailer
-
€228 EUR
A
Retailer 2
-
€233 EUR
View
Retailer 3
-
€242 EUR
View
Price last confirmed 43 days ago
Retailer 4
-
€246 EUR
View
Price last confirmed 8 days ago
A
Retailer 5
-
€254 EUR
View
B+
Retailer 6
-
€307 EUR
View
B+
Retailer 7
-
€323 EUR
View
B+
Retailer 8
-
€345 EUR
View
A
Retailer 9
-
€356 EUR
View
B+
Retailer 10
-
€390 EUR
View
B+
Retailer 11
-
€442 EUR
View
B
Retailer 12
-
€527 EUR
View
Most Expensive
C
NZ Jewellers
c8024f03-3694-47a2-beab-bb6651a5c213 · Nov 4
€1,034 EUR
$1,155 USD
View
12 more retailers have this diamond
Prices start from €228 EURSave up to €806 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
0.45ct Round
€228 EUR