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Cushion|Natural|IGI

1.03ct J SI2 Cushion Natural Diamond

GD • J/SI2 • IGI 788644178

Shape and cutting style on the report: Cushion antique cut

Certificate IGI 788644178

Diamond specifications and retailer prices

From $1,710 AUD
As of November 6, 2026
Save $2,765 AUD (62%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,475 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI 788644178. Listed at 9 retailers as of November 5, 2026, with prices from $1,710 to $4,475, a $2,765 spread on the same certified stone. NZ Jewellers lists it at $4,475. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.03
Carat
J
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle36.3°
Pavilion angle39.8°
OriginNatural
Grading LabIGI
CertificateIGI 788644178
Dimensions6.70 × 5.15 × 3.64 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeLarge
Top View
6.70 mm5.15 mm1.03 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 788644178
Side View
Table 51.0%Crown 36.3°Girdle: THK-ETKPavilion 39.8°Culet: LargeDepth 70.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $4,475 AUD|Low: $1,551 AUD|High: $4,475 AUD|Avg: $2,346 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$1,710 AUD
Retailer 8$1,774 AUD
Retailer 6$1,835 AUD
Retailer 2$1,924 AUD
Retailer 9$1,927 AUD
Retailer 5$2,118 AUD
Retailer 4$2,553 AUD
Retailer 7$2,634 AUD
NZ Jewellers$4,475 AUD

19 data points across 9 retailers

9 retailers$1,710 AUD to $4,475 AUD

B+
Cheapest Retailer
-
$1,710 AUD
Final sale: no returns
B+
Retailer 2
-
$1,774 AUD
View
B+
Retailer 3
-
$1,835 AUD
View
B+
Retailer 4
-
$1,924 AUD
View
B+
Retailer 5
-
$1,927 AUD
View
B
Retailer 6
-
$2,118 AUD
View
B
Retailer 7
-
$2,553 AUD
View
B
Retailer 8
-
$2,634 AUD
View
Most Expensive
C
NZ Jewellers
917ba01c-c227-4c62-88a6-571a47ca8e8e · Nov 5
$4,475 AUD
$3,075 USD
View
8 more retailers have this diamond
Prices start from $1,710 AUDSave up to $2,765 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.

B+
1.03ct Cushion
$1,710 AUD