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Round|Natural|IGI

1.23ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 613369271

Shape and cutting style on the report: Round brilliant

Certificate IGI 613369271

Diamond specifications and retailer prices

From $3,106 AUD
As of November 4, 2026
Save $2,902 AUD (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,453 AUD at NZ Jewellers · As of October 20, 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 top-tier cut grade and certified by IGI 613369271. Listed at 15 retailers as of November 4, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 613369271
Dimensions6.87 × 6.84 × 4.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.87 mm6.84 mm1.23 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 613369271
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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 4
Current: $7,453 AUD|Low: $3,106 AUD|High: $7,453 AUD|Avg: $4,314 AUD|+2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$3,106 AUD
Retailer 9$3,222 AUD
Retailer 8$3,435 AUD
Retailer 10$3,481 AUD
Retailer 2$3,780 AUD
Retailer 3$3,946 AUD
Retailer 5$4,197 AUD
Retailer 4$4,261 AUD
Retailer 7$6,008 AUD
NZ Jewellers$7,453 AUD

29 data points across 10 retailers

15 retailers$3,106 AUD to $6,008 AUD

A
Cheapest Retailer
-
$3,106 AUD
A
Retailer 2
-
$3,222 AUD
View
Retailer 3
-
$3,387 AUD
View
Price last confirmed 102 days ago
A
Retailer 4
-
$3,435 AUD
View
Retailer 5
-
$3,481 AUD
View
Price last confirmed 44 days ago
Retailer 6
-
$3,481 AUD
View
Price last confirmed 15 days ago
Retailer 7
-
$3,564 AUD
View
Price last confirmed 21 days ago
A
Retailer 8
-
$3,780 AUD
View
B+
Retailer 9
-
$3,946 AUD
View
Retailer 10
-
$4,017 AUD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
$4,197 AUD
View
B+
Retailer 12
-
$4,261 AUD
View
B
Retailer 13
-
$6,008 AUD
View
Retailer 14
-
$7,277 AUD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
a4acdb90-10ba-4c17-92fa-a52541d8be25 · Oct 20
$7,453 AUD
$5,121 USD
View
Price last confirmed 17 days ago
14 more retailers have this diamond
Prices start from $3,106 AUDSave up to $2,902 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
$3,106 AUD