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1.03ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 825677309

Shape and cutting style on the report: Round brilliant

Certificate IGI 825677309

Diamond specifications and retailer prices

From $2,764 NZD
As of November 5, 2026
Save $4,631 NZD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,394 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 825677309. Listed at 14 retailers as of November 5, 2026, with prices from $2,764 to $7,394, a $4,631 spread on the same certified stone. NZ Jewellers lists it at $7,394. 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

1.03
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 825677309
Dimensions6.43 × 6.46 × 4.02 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.43 mm6.46 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825677309
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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 5
Current: $2,861 NZD|Low: $2,796 NZD|High: $5,374 NZD|Avg: $3,677 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$2,796 NZD
Retailer 1$2,861 NZD
Retailer 2$3,402 NZD
Retailer 3$3,527 NZD
Retailer 5$3,700 NZD
Retailer 4$4,107 NZD
Retailer 6$5,296 NZD

34 data points across 7 retailers

14 retailers$2,764 NZD to $7,394 NZD

A
Cheapest Retailer
-
$2,764 NZD
A
Retailer 2
-
$2,796 NZD
View
Final sale: no returns
A
Retailer 3
-
$2,861 NZD
View
Retailer 4
-
$3,032 NZD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$3,032 NZD
View
A
Retailer 6
-
$3,157 NZD
View
B+
Retailer 7
-
$3,171 NZD
View
B+
Retailer 8
-
$3,402 NZD
View
B+
Retailer 9
-
$3,498 NZD
View
B+
Retailer 10
-
$3,527 NZD
View
B+
Retailer 11
-
$3,700 NZD
View
B+
Retailer 12
-
$4,107 NZD
View
B
Retailer 13
-
$5,296 NZD
View
Most Expensive
B
NZ Jewellers
e61d0523-7643-42e5-af4a-3b1fe5f5a3ac · Nov 5
$7,394 NZD
$4,099 USD
View
13 more retailers have this diamond
Prices start from $2,764 NZDSave up to $4,631 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
1.03ct Round
$2,764 NZD