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1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 651482131

Shape and cutting style on the report: Round brilliant

Certificate IGI 651482131

Diamond specifications and retailer prices

From €1,217 EUR
As of November 6, 2026
Save €2,578 EUR (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €3,795 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 651482131. Listed at 19 retailers as of November 5, 2026, with prices from €1,217 to €3,795, a €2,578 spread on the same certified stone. NZ Jewellers lists it at €3,795. 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

1.30
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 651482131
Dimensions6.95 × 6.91 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.95 mm6.91 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 651482131
Side View
Table 59.0%Crown 33.8°Girdle: MED-STKPavilion 41.8°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 6
Current: €1,217 EUR|Low: €1,217 EUR|High: €2,758 EUR|Avg: €1,888 EUR|-3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1€1,217 EUR
Retailer 7€1,350 EUR
Retailer 2€1,472 EUR
Retailer 8€1,648 EUR
Retailer 4€1,745 EUR
Retailer 3€1,899 EUR
Retailer 6€2,066 EUR
Retailer 5€2,717 EUR

33 data points across 8 retailers

19 retailers€1,217 EUR to €3,795 EUR

A
Cheapest Retailer
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€1,217 EUR
A
Retailer 2
-
€1,350 EUR
View
A
Retailer 3
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€1,418 EUR
View
A
Retailer 4
-
€1,472 EUR
View
A
Retailer 5
-
€1,556 EUR
View
Retailer 6
-
€1,556 EUR
View
Price last confirmed 12 days ago
A
Retailer 7
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€1,613 EUR
View
A
Retailer 8
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€1,628 EUR
View
A
Retailer 9
-
€1,648 EUR
View
A
Retailer 10
-
€1,678 EUR
View
A
Retailer 11
-
€1,716 EUR
View
A
Retailer 12
-
€1,745 EUR
View
B+
Retailer 13
-
€1,795 EUR
View
A
Retailer 14
-
€1,899 EUR
View
A
Retailer 15
-
€2,066 EUR
View
B+
Retailer 16
-
€2,344 EUR
View
B+
Retailer 17
-
€2,575 EUR
View
B+
Retailer 18
-
€2,717 EUR
View
Most Expensive
B
NZ Jewellers
e921917e-3950-4f9e-82a3-5d889092efa1 · Nov 5
€3,795 EUR
$4,259 USD
View
18 more retailers have this diamond
Prices start from €1,217 EURSave up to €2,578 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
1.30ct Round
€1,217 EUR