Round|Natural|IGI

1.54ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 635477901

Shape and cutting style on the report: Round brilliant

Certificate IGI 635477901

Diamond specifications and retailer prices

From €1,403 EUR
As of November 7, 2026
Save €755 EUR (35%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,314 EUR at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 635477901. Listed at 14 retailers as of November 5, 2026, with a 54% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.54
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 635477901
Dimensions7.36 × 7.29 × 4.63 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.36 mm7.29 mm1.54 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 635477901
Side View
Table 58.0%Crown 35.7°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 7
Current: €1,724 EUR|Low: €1,403 EUR|High: €3,136 EUR|Avg: €2,104 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2€1,403 EUR
Retailer 5€1,598 EUR
Retailer 1€1,724 EUR
Retailer 3€1,938 EUR
Retailer 4€1,943 EUR
Retailer 6€2,159 EUR
Retailer 7€3,115 EUR

31 data points across 7 retailers

14 retailers€1,403 EUR to €2,159 EUR

A
Cheapest Retailer
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€1,403 EUR
A
Retailer 2
-
€1,598 EUR
View
A
Retailer 3
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€1,720 EUR
View
A
Retailer 4
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€1,724 EUR
View
Retailer 5
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€1,769 EUR
View
Price last confirmed 37 days ago
A
Retailer 6
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€1,805 EUR
View
Retailer 7
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€1,850 EUR
View
Price last confirmed 39 days ago
A
Retailer 8
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€1,892 EUR
View
A
Retailer 9
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€1,938 EUR
View
A
Retailer 10
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€1,943 EUR
View
Retailer 11
-
€2,041 EUR
View
Price last confirmed 39 days ago
A
Retailer 12
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€2,159 EUR
View
Retailer 13
-
€3,115 EUR
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
19c76719-e8be-4156-8aaf-56823ce27e86 · Sep 28
€4,314 EUR
$4,817 USD
View
Price last confirmed 40 days ago
13 more retailers have this diamond
Prices start from €1,403 EURSave up to €755 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
1.54ct Round
€1,403 EUR