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0.98ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 818638647

Shape and cutting style on the report: Round brilliant

Certificate IGI 818638647

Diamond specifications and retailer prices

From $1,538 AUD
As of November 6, 2026
Save $3,114 AUD (67%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,653 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.98ct natural round diamond

This 0.98ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 818638647. Listed at 13 retailers as of November 5, 2026, with prices from $1,538 to $4,653, a $3,114 spread on the same certified stone. NZ Jewellers lists it at $4,653. 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

0.98
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 818638647
Dimensions6.26 × 6.32 × 3.95 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.26 mm6.32 mm0.98 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 818638647
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.7%

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 6
Current: $4,653 AUD|Low: $1,538 AUD|High: $4,653 AUD|Avg: $2,542 AUD
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
November 6, 2026
Retailer 2$1,538 AUD
Retailer 4$1,760 AUD
Retailer 9$1,907 AUD
Retailer 10$1,996 AUD
Retailer 5$2,080 AUD
Retailer 3$2,100 AUD
Retailer 13$2,201 AUD
Retailer 11$2,207 AUD
Retailer 7$2,693 AUD
Retailer 8$2,793 AUD
Retailer 12$3,494 AUD
Retailer 6$4,531 AUD
NZ Jewellers$4,653 AUD

14 data points across 13 retailers

13 retailers$1,538 AUD to $4,653 AUD

A
Cheapest Retailer
-
$1,538 AUD
A
Retailer 2
-
$1,760 AUD
View
Final sale: no returns
B+
Retailer 3
-
$1,907 AUD
View
B+
Retailer 4
-
$1,996 AUD
View
B+
Retailer 5
-
$2,080 AUD
View
B+
Retailer 6
-
$2,100 AUD
View
B+
Retailer 7
-
$2,201 AUD
View
B+
Retailer 8
-
$2,207 AUD
View
B+
Retailer 9
-
$2,693 AUD
View
B
Retailer 10
-
$2,793 AUD
View
B
Retailer 11
-
$3,494 AUD
View
B
Retailer 12
-
$4,531 AUD
View
Most Expensive
B
NZ Jewellers
361cc30a-026b-4e91-ae08-305eea2c7bad · Nov 5
$4,653 AUD
$3,257 USD
View
12 more retailers have this diamond
Prices start from $1,538 AUDSave up to $3,114 AUD

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
0.98ct Round
$1,538 AUD