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Round|Natural|GIA

1.23ct J VS2 Round Natural Diamond

EX • J/VS2 • GIA 1558434257

Certificate GIA 1558434257

Diamond specifications and retailer prices

From HK$16,663 HKD
As of November 6, 2026
Save HK$21,496 HKD (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$48,727 HKD at NZ Jewellers · As of October 9, 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 1558434257. Listed at 9 retailers as of November 4, 2026, with a 129% 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
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1558434257
Dimensions6.77 × 6.83 × 4.26 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
6.77 mm6.83 mm1.23 ctJ / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558434257
Side View
Table 57.0%CrownGirdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.7%

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: HK$48,727 HKD|Low: HK$16,663 HKD|High: HK$49,621 HKD|Avg: HK$27,819 HKD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2HK$16,663 HKD
Retailer 7HK$20,617 HKD
Retailer 3HK$21,535 HKD
Retailer 4HK$23,237 HKD
Retailer 8HK$23,308 HKD
Retailer 9HK$24,650 HKD
Retailer 5HK$25,834 HKD
Retailer 10HK$29,623 HKD
Retailer 6HK$38,159 HKD
NZ JewellersHK$48,727 HKD

32 data points across 10 retailers

9 retailersHK$16,663 HKD to HK$38,159 HKD

A
Cheapest Retailer
-
HK$16,663 HKD
A
Retailer 2
-
HK$20,617 HKD
View
A
Retailer 3
-
HK$21,535 HKD
View
B+
Retailer 4
-
HK$23,237 HKD
View
Retailer 5
-
HK$23,308 HKD
View
Price last confirmed 30 days ago
Retailer 6
-
HK$24,650 HKD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
HK$25,834 HKD
View
B
Retailer 8
-
HK$38,159 HKD
View
Most Expensive
NZ Jewellers
b27948bc-0402-4d6f-9585-946ac0fff126 · Oct 9
HK$48,727 HKD
$6,211 USD
View
Price last confirmed 28 days ago
8 more retailers have this diamond
Prices start from HK$16,663 HKDSave up to HK$21,496 HKD

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
HK$16,663 HKD