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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 $6,085 NZD
As of November 4, 2026
Save $5,859 NZD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $11,944 NZD 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 $6,085 to $11,944, a $5,859 spread on the same certified stone. NZ Jewellers lists it at $11,944. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $11,944 NZD|Low: $6,085 NZD|High: $12,555 NZD|Avg: $7,784 NZD
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$6,085 NZD
Retailer 14$6,169 NZD
Retailer 5$6,328 NZD
Retailer 8$6,352 NZD
Retailer 4$6,557 NZD
Retailer 6$6,855 NZD
Retailer 16$6,855 NZD
Retailer 15$7,118 NZD
Retailer 9$7,181 NZD
Retailer 11$7,879 NZD
Retailer 3$7,910 NZD
Retailer 12$7,964 NZD
Retailer 2$8,143 NZD
Retailer 10$8,366 NZD
Retailer 13$11,433 NZD
NZ Jewellers$11,944 NZD

36 data points across 16 retailers

16 retailers$6,085 NZD to $11,944 NZD

A
Cheapest Retailer
-
$6,085 NZD
A
Retailer 2
-
$6,169 NZD
View
A
Retailer 3
-
$6,328 NZD
View
Final sale: no returns
A
Retailer 4
-
$6,352 NZD
View
A
Retailer 5
-
$6,557 NZD
View
B+
Retailer 6
-
$6,855 NZD
View
Retailer 7
-
$6,855 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$7,118 NZD
View
A
Retailer 9
-
$7,181 NZD
View
B+
Retailer 10
-
$7,879 NZD
View
B+
Retailer 11
-
$7,910 NZD
View
B+
Retailer 12
-
$7,964 NZD
View
B+
Retailer 13
-
$8,143 NZD
View
B+
Retailer 14
-
$8,366 NZD
View
B
Retailer 15
-
$11,433 NZD
View
Most Expensive
B
NZ Jewellers
e9241f48-9b2c-4d57-a740-646cbf1c56e5 · Nov 5
$11,944 NZD
$6,621 USD
View
15 more retailers have this diamond
Prices start from $6,085 NZDSave up to $5,859 NZD

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
$6,085 NZD