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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2546459773

Certificate GIA 2546459773

Diamond specifications and retailer prices

From HK$21,827 HKD
As of November 4, 2026
Save HK$11,576 HKD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$49,517 HKD at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2546459773. Listed at 19 retailers as of November 4, 2026, with a 53% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2546459773
Dimensions6.75 × 6.79 × 4.21 mm
L/W Ratio1.01
Top View
6.75 mm6.79 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2546459773
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$32,995 HKD|Low: HK$22,086 HKD|High: HK$48,098 HKD|Avg: HK$31,247 HKD|+14.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7HK$22,086 HKD
Retailer 3HK$22,587 HKD
Retailer 8HK$25,754 HKD
Retailer 4HK$30,440 HKD
Retailer 2HK$31,067 HKD
Retailer 9HK$32,196 HKD
Retailer 1HK$32,995 HKD
Retailer 5HK$34,265 HKD
Retailer 6HK$48,098 HKD

40 data points across 9 retailers

19 retailersHK$21,827 HKD to HK$33,403 HKD

B+
Cheapest Retailer
-
HK$21,827 HKD
B+
Retailer 2
-
HK$22,086 HKD
View
B+
Retailer 3
-
HK$22,399 HKD
View
B
Retailer 4
-
HK$22,587 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$23,700 HKD
View
Retailer 6
-
HK$25,754 HKD
View
Price last confirmed 37 days ago
B
Retailer 7
-
HK$26,326 HKD
View
Retailer 8
-
HK$26,741 HKD
View
Price last confirmed 39 days ago
B
Retailer 9
-
HK$27,987 HKD
View
B
Retailer 10
-
HK$27,987 HKD
View
Retailer 11
-
HK$29,712 HKD
View
Price last confirmed 39 days ago
Retailer 12
-
HK$30,440 HKD
View
Price last confirmed 36 days ago
B
Retailer 13
-
HK$31,067 HKD
View
Retailer 14
-
HK$32,196 HKD
View
Price last confirmed 37 days ago
B
Retailer 15
-
HK$32,995 HKD
View
B
Retailer 16
-
HK$33,403 HKD
View
Retailer 17
-
HK$34,265 HKD
View
Price last confirmed 38 days ago
Retailer 18
-
HK$48,098 HKD
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
bcf9dc78-1694-4342-af5e-fb6a715fbc54 · Sep 28
HK$49,517 HKD
$6,318 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from HK$21,827 HKDSave up to HK$11,576 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.

B+
1.20ct Round
HK$21,827 HKD