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Round|Natural|IGI

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 815638123

Shape and cutting style on the report: Round brilliant

Certificate IGI 815638123

Diamond specifications and retailer prices

From $1,057 NZD
As of November 6, 2026
Save $139 NZD (12%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,077 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 815638123. Listed at 9 retailers as of November 2, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.55
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 815638123
Dimensions5.31 × 5.34 × 3.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.31 mm5.34 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815638123
Side View
Table 60.0%Crown 32.8°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,077 NZD|Low: $803 NZD|High: $3,077 NZD|Avg: $1,368 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5$803 NZD
Retailer 4$864 NZD
Retailer 2$1,041 NZD
Retailer 8$1,057 NZD
Retailer 9$1,178 NZD
Retailer 7$1,182 NZD
Retailer 6$1,196 NZD
Retailer 3$1,854 NZD
NZ Jewellers$3,077 NZD

25 data points across 9 retailers

9 retailers$1,057 NZD to $1,196 NZD

Retailer 1
-
$803 NZD
Price last confirmed 9 days ago
Retailer 2
-
$864 NZD
View
Price last confirmed 9 days ago
Retailer 3
-
$1,041 NZD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$1,057 NZD
View
B+
Retailer 5
-
$1,178 NZD
View
Retailer 6
-
$1,182 NZD
View
Price last confirmed 4 days ago
B+
Retailer 7
-
$1,196 NZD
View
Retailer 8
-
$1,854 NZD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
acccbea3-923f-4cf0-bcdc-3f6ec6a8bf14 · Oct 30
$3,077 NZD
$1,706 USD
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from $1,057 NZDSave up to $139 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.

B+
0.55ct Round
$1,057 NZD