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Round|Natural|GIA

1.23ct J VS2 Round Natural Diamond

EX • J/VS2 • GIA 1557769838

Certificate GIA 1557769838

Diamond specifications and retailer prices

From $3,156 AUD
As of November 1, 2026
Save $3,867 AUD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,780 AUD at NZ Jewellers · As of October 30, 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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1557769838. Listed at 15 retailers as of November 1, 2026, with a 123% 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
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1557769838
Dimensions6.87 × 6.84 × 4.28 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.87 mm6.84 mm1.23 ctJ / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1557769838
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.4%

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 1
Current: $4,463 AUD|Low: $3,148 AUD|High: $7,107 AUD|Avg: $4,503 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 4$3,156 AUD
Retailer 8$3,330 AUD
Retailer 10$3,760 AUD
Retailer 7$4,100 AUD
Retailer 2$4,361 AUD
Retailer 1$4,463 AUD
Retailer 3$4,600 AUD
Retailer 9$4,723 AUD
Retailer 6$5,161 AUD
Retailer 5$7,023 AUD

36 data points across 10 retailers

15 retailers$3,156 AUD to $7,023 AUD

A
Cheapest Retailer
-
$3,156 AUD
A
Retailer 2
-
$3,760 AUD
View
B+
Retailer 3
-
$4,100 AUD
View
B+
Retailer 4
-
$4,200 AUD
View
Retailer 5
-
$4,200 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$4,361 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,414 AUD
View
B+
Retailer 8
-
$4,463 AUD
View
B+
Retailer 9
-
$4,600 AUD
View
Retailer 10
-
$4,723 AUD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
$4,767 AUD
View
B
Retailer 12
-
$4,845 AUD
View
B
Retailer 13
-
$5,161 AUD
View
B
Retailer 14
-
$7,023 AUD
View
Most Expensive
NZ Jewellers
1fa6b5cb-4984-4abe-b225-51e42daf8969 · Oct 30
$8,780 AUD
$6,146 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from $3,156 AUDSave up to $3,867 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
$3,156 AUD