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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6542820378

Certificate GIA 6542820378

Diamond specifications and retailer prices

From HK$16,874 HKD
As of November 6, 2026
Save HK$30,072 HKD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$46,946 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542820378. Listed at 17 retailers as of November 5, 2026, with prices from HK$16,874 to HK$46,946, a HK$30,072 spread on the same certified stone. NZ Jewellers lists it at HK$46,946. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542820378
Dimensions6.78 × 6.76 × 4.24 mm
L/W Ratio1.00
Top View
6.78 mm6.76 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542820378
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°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$46,946 HKD|Low: HK$16,874 HKD|High: HK$46,946 HKD|Avg: HK$25,280 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 9HK$16,874 HKD
Retailer 3HK$17,634 HKD
Retailer 13HK$18,771 HKD
Retailer 4HK$20,346 HKD
Retailer 6HK$20,346 HKD
Retailer 15HK$21,286 HKD
Retailer 14HK$22,062 HKD
Retailer 5HK$23,473 HKD
Retailer 2HK$23,630 HKD
Retailer 12HK$26,247 HKD
Retailer 8HK$26,420 HKD
Retailer 7HK$26,718 HKD
Retailer 11HK$32,353 HKD
Retailer 10HK$37,549 HKD
NZ JewellersHK$46,946 HKD

39 data points across 15 retailers

17 retailersHK$16,874 HKD to HK$46,946 HKD

A
Cheapest Retailer
-
HK$16,874 HKD
B+
Retailer 2
-
HK$17,634 HKD
View
B+
Retailer 3
-
HK$18,214 HKD
View
B+
Retailer 4
-
HK$18,771 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$20,346 HKD
View
Retailer 6
-
HK$20,346 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$21,286 HKD
View
B
Retailer 8
-
HK$22,062 HKD
View
B+
Retailer 9
-
HK$23,277 HKD
View
B+
Retailer 10
-
HK$23,277 HKD
View
B+
Retailer 11
-
HK$23,473 HKD
View
B+
Retailer 12
-
HK$23,630 HKD
View
B
Retailer 13
-
HK$24,061 HKD
View
B
Retailer 14
-
HK$26,420 HKD
View
B
Retailer 15
-
HK$32,353 HKD
View
B
Retailer 16
-
HK$37,549 HKD
View
Most Expensive
B
NZ Jewellers
3e49ae64-05b7-42ad-913f-fde23ded4821 · Nov 5
HK$46,946 HKD
$5,990 USD
View
16 more retailers have this diamond
Prices start from HK$16,874 HKDSave up to HK$30,072 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
1.20ct Round
HK$16,874 HKD