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Round|Natural|IGI

1.23ct J VS1 Round Natural Diamond

GD • J/VS1 • IGI 782676152

Shape and cutting style on the report: Round brilliant

Certificate IGI 782676152

Diamond specifications and retailer prices

From $1,939 AUD
As of November 6, 2026
Save $4,353 AUD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,803 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI 782676152. Listed at 16 retailers as of November 5, 2026, with a 225% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.23
Carat
J
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle40.2°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 782676152
Dimensions6.45 × 6.53 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.45 mm6.53 mm1.23 ctJ / VS1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateIGI 782676152
Side View
Table 57.0%Crown 40.2°Girdle: Very ThickPavilion 39.7°Culet: NoneDepth 66.3%

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 6
Current: $6,292 AUD|Low: $1,939 AUD|High: $6,581 AUD|Avg: $3,212 AUD|-4.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,939 AUD
Retailer 6$2,241 AUD
Retailer 11$2,381 AUD
Retailer 9$2,547 AUD
Retailer 10$2,579 AUD
Retailer 3$2,601 AUD
Retailer 7$2,976 AUD
Retailer 4$3,148 AUD
Retailer 8$3,276 AUD
Retailer 5$4,506 AUD
NZ Jewellers$6,292 AUD

38 data points across 11 retailers

16 retailers$1,939 AUD to $6,292 AUD

A
Cheapest Retailer
-
$1,939 AUD
B+
Retailer 2
-
$2,241 AUD
View
B+
Retailer 3
-
$2,381 AUD
View
Final sale: no returns
B+
Retailer 4
-
$2,547 AUD
View
B+
Retailer 5
-
$2,579 AUD
View
Retailer 6
-
$2,601 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$2,789 AUD
View
Price last confirmed 39 days ago
Retailer 8
-
$2,823 AUD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$2,883 AUD
View
B+
Retailer 10
-
$2,976 AUD
View
Retailer 11
-
$3,113 AUD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$3,148 AUD
View
B+
Retailer 13
-
$3,276 AUD
View
B
Retailer 14
-
$4,506 AUD
View
B
Retailer 15
-
$6,292 AUD
View
Most Expensive
NZ Jewellers
935c2a5b-654b-4e3e-8f70-24237596aaf0 · Sep 28
$6,803 AUD
$4,674 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from $1,939 AUDSave up to $4,353 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
1.23ct Round
$1,939 AUD