CaratHunter
Plans
Round|Natural|IGI

1.23ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 670478960

Shape and cutting style on the report: Round brilliant

Certificate IGI 670478960

Diamond specifications and retailer prices

From HK$16,600 HKD
As of November 6, 2026
Save HK$14,648 HKD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$38,247 HKD 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 670478960. Listed at 14 retailers as of November 2, 2026, with a 88% 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 angle34.9°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 670478960
Dimensions6.84 × 6.80 × 4.29 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.84 mm6.80 mm1.23 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670478960
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.9%

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 6
Current: HK$38,247 HKD|Low: HK$16,122 HKD|High: HK$38,247 HKD|Avg: HK$22,237 HKD|+2.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6HK$16,537 HKD
Retailer 5HK$16,600 HKD
Retailer 3HK$16,999 HKD
Retailer 8HK$17,838 HKD
Retailer 4HK$19,805 HKD
Retailer 7HK$20,448 HKD
Retailer 9HK$21,529 HKD
Retailer 10HK$22,141 HKD
Retailer 2HK$31,248 HKD
NZ JewellersHK$38,247 HKD

26 data points across 10 retailers

14 retailersHK$16,600 HKD to HK$31,248 HKD

Retailer 1
-
HK$16,537 HKD
Price last confirmed 13 days ago
A
Retailer 2
-
HK$16,600 HKD
View
A
Retailer 3
-
HK$16,999 HKD
View
Retailer 4
-
HK$17,407 HKD
View
Price last confirmed 102 days ago
Retailer 5
-
HK$17,838 HKD
View
Price last confirmed 44 days ago
Retailer 6
-
HK$17,838 HKD
View
Price last confirmed 15 days ago
Retailer 7
-
HK$18,292 HKD
View
Price last confirmed 21 days ago
A
Retailer 8
-
HK$19,805 HKD
View
A
Retailer 9
-
HK$20,448 HKD
View
Retailer 10
-
HK$20,589 HKD
View
Price last confirmed 45 days ago
Retailer 11
-
HK$21,529 HKD
View
Price last confirmed 15 days ago
B
Retailer 12
-
HK$31,248 HKD
View
Retailer 13
-
HK$37,298 HKD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
92be908b-536e-4fb8-a6af-c096640deb34 · Oct 20
HK$38,247 HKD
$4,880 USD
View
Price last confirmed 17 days ago
13 more retailers have this diamond
Prices start from HK$16,600 HKDSave up to HK$14,648 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$16,600 HKD