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1.55ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 819632954

Shape and cutting style on the report: Round brilliant

Certificate IGI 819632954

Diamond specifications and retailer prices

From €3,021 EUR
As of November 4, 2026
Save €2,909 EUR (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €5,930 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 819632954. Listed at 16 retailers as of November 4, 2026, with prices from €3,021 to €5,930, a €2,909 spread on the same certified stone. NZ Jewellers lists it at €5,930. 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

1.55
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 819632954
Dimensions7.37 × 7.40 × 4.64 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.37 mm7.40 mm1.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 819632954
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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: €5,930 EUR|Low: €3,021 EUR|High: €6,234 EUR|Avg: €3,865 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
Retailer 15
Retailer 16
November 6, 2026
Retailer 7€3,021 EUR
Retailer 14€3,063 EUR
Retailer 5€3,142 EUR
Retailer 8€3,154 EUR
Retailer 4€3,256 EUR
Retailer 6€3,404 EUR
Retailer 16€3,404 EUR
Retailer 15€3,534 EUR
Retailer 9€3,566 EUR
Retailer 11€3,912 EUR
Retailer 3€3,927 EUR
Retailer 12€3,954 EUR
Retailer 2€4,043 EUR
Retailer 10€4,154 EUR
Retailer 13€5,677 EUR
NZ Jewellers€5,930 EUR

36 data points across 16 retailers

16 retailers€3,021 EUR to €5,930 EUR

A
Cheapest Retailer
-
€3,021 EUR
A
Retailer 2
-
€3,063 EUR
View
A
Retailer 3
-
€3,142 EUR
View
Final sale: no returns
A
Retailer 4
-
€3,154 EUR
View
A
Retailer 5
-
€3,256 EUR
View
B+
Retailer 6
-
€3,404 EUR
View
Retailer 7
-
€3,404 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€3,534 EUR
View
A
Retailer 9
-
€3,566 EUR
View
B+
Retailer 10
-
€3,912 EUR
View
B+
Retailer 11
-
€3,927 EUR
View
B+
Retailer 12
-
€3,954 EUR
View
B+
Retailer 13
-
€4,043 EUR
View
B+
Retailer 14
-
€4,154 EUR
View
B
Retailer 15
-
€5,677 EUR
View
Most Expensive
B
NZ Jewellers
e9241f48-9b2c-4d57-a740-646cbf1c56e5 · Nov 5
€5,930 EUR
$6,621 USD
View
15 more retailers have this diamond
Prices start from €3,021 EURSave up to €2,909 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
1.55ct Round
€3,021 EUR