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Round|Natural|IGI

1.21ct J VS1 Round Natural Diamond

EX • J/VS1 • IGI 642424260

Shape and cutting style on the report: Round brilliant

Certificate IGI 642424260

Diamond specifications and retailer prices

From HK$15,659 HKD
As of November 5, 2026
Save HK$14,625 HKD (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$36,703 HKD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct 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 642424260. Listed at 17 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

1.21
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 642424260
Dimensions6.79 × 6.83 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.79 mm6.83 mm1.21 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 642424260
Side View
Table 55.0%Crown 34.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.2%

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 5
Current: HK$19,045 HKD|Low: HK$13,504 HKD|High: HK$31,906 HKD|Avg: HK$19,698 HKD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9HK$15,659 HKD
Retailer 11HK$16,208 HKD
Retailer 10HK$16,357 HKD
Retailer 8HK$17,438 HKD
Retailer 2HK$18,003 HKD
Retailer 3HK$18,003 HKD
Retailer 1HK$19,045 HKD
Retailer 4HK$19,907 HKD
Retailer 5HK$21,153 HKD
Retailer 6HK$21,498 HKD
Retailer 7HK$30,284 HKD

29 data points across 11 retailers

17 retailersHK$15,659 HKD to HK$30,284 HKD

A
Cheapest Retailer
-
HK$15,659 HKD
A
Retailer 2
-
HK$16,357 HKD
View
Retailer 3
-
HK$17,156 HKD
View
Price last confirmed 102 days ago
A
Retailer 4
-
HK$17,438 HKD
View
Retailer 5
-
HK$17,556 HKD
View
Price last confirmed 56 days ago
Retailer 6
-
HK$17,556 HKD
View
Price last confirmed 44 days ago
Retailer 7
-
HK$18,003 HKD
View
Price last confirmed 19 days ago
Retailer 8
-
HK$18,003 HKD
View
Price last confirmed 21 days ago
A
Retailer 9
-
HK$19,045 HKD
View
A
Retailer 10
-
HK$19,907 HKD
View
Retailer 11
-
HK$20,252 HKD
View
Price last confirmed 60 days ago
Retailer 12
-
HK$20,252 HKD
View
Price last confirmed 45 days ago
B+
Retailer 13
-
HK$21,153 HKD
View
B+
Retailer 14
-
HK$21,498 HKD
View
B
Retailer 15
-
HK$30,284 HKD
View
Retailer 16
-
HK$36,703 HKD
View
Price last confirmed 57 days ago
Most Expensive
NZ Jewellers
059d0d0d-9d10-4ba7-a3a4-3129d5ebbee9 · Sep 21
HK$36,703 HKD
$4,683 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from HK$15,659 HKDSave up to HK$14,625 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
1.21ct Round
HK$15,659 HKD