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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 $4,711 CAD
As of November 4, 2026
Save $4,536 CAD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,247 CAD 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 $4,711 to $9,247, a $4,536 spread on the same certified stone. NZ Jewellers lists it at $9,247. 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
Color
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: $9,247 CAD|Low: $4,711 CAD|High: $9,720 CAD|Avg: $6,026 CAD
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$4,711 CAD
Retailer 14$4,776 CAD
Retailer 5$4,899 CAD
Retailer 8$4,917 CAD
Retailer 4$5,077 CAD
Retailer 6$5,307 CAD
Retailer 16$5,307 CAD
Retailer 15$5,511 CAD
Retailer 9$5,560 CAD
Retailer 11$6,100 CAD
Retailer 3$6,124 CAD
Retailer 12$6,166 CAD
Retailer 2$6,304 CAD
Retailer 10$6,477 CAD
Retailer 13$8,852 CAD
NZ Jewellers$9,247 CAD

36 data points across 16 retailers

16 retailers$4,711 CAD to $9,247 CAD

A
Cheapest Retailer
-
$4,711 CAD
A
Retailer 2
-
$4,776 CAD
View
A
Retailer 3
-
$4,899 CAD
View
Final sale: no returns
A
Retailer 4
-
$4,917 CAD
View
A
Retailer 5
-
$5,077 CAD
View
B+
Retailer 6
-
$5,307 CAD
View
Retailer 7
-
$5,307 CAD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$5,511 CAD
View
A
Retailer 9
-
$5,560 CAD
View
B+
Retailer 10
-
$6,100 CAD
View
B+
Retailer 11
-
$6,124 CAD
View
B+
Retailer 12
-
$6,166 CAD
View
B+
Retailer 13
-
$6,304 CAD
View
B+
Retailer 14
-
$6,477 CAD
View
B
Retailer 15
-
$8,852 CAD
View
Most Expensive
B
NZ Jewellers
e9241f48-9b2c-4d57-a740-646cbf1c56e5 · Nov 5
$9,247 CAD
$6,621 USD
View
15 more retailers have this diamond
Prices start from $4,711 CADSave up to $4,536 CAD

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
$4,711 CAD