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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2554750922

Certificate GIA 2554750922

Diamond specifications and retailer prices

From HK$12,814 HKD
As of November 6, 2026
Save HK$17,861 HKD (58%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$37,040 HKD at NZ Jewellers · As of October 3, 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 2554750922. Listed at 21 retailers as of November 4, 2026, with a 139% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554750922
Dimensions6.69 × 6.73 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.69 mm6.73 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554750922
Side View
Table 56.0%Crown 36°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$14,225 HKD|Low: HK$12,736 HKD|High: HK$31,412 HKD|Avg: HK$18,148 HKD|-1.0%
Retailer 1
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
Retailer 16
November 6, 2026
Retailer 6HK$12,814 HKD
Retailer 7HK$13,331 HKD
Retailer 4HK$13,339 HKD
Retailer 1HK$14,225 HKD
Retailer 13HK$14,546 HKD
Retailer 3HK$14,640 HKD
Retailer 5HK$14,883 HKD
Retailer 9HK$16,639 HKD
Retailer 8HK$18,128 HKD
Retailer 2HK$18,340 HKD
Retailer 15HK$18,340 HKD
Retailer 11HK$18,786 HKD
Retailer 10HK$18,888 HKD
Retailer 14HK$21,224 HKD
Retailer 12HK$22,141 HKD
Retailer 16HK$30,676 HKD

27 data points across 16 retailers

21 retailersHK$12,814 HKD to HK$30,676 HKD

A
Cheapest Retailer
-
HK$12,814 HKD
Retailer 2
-
HK$13,331 HKD
View
Price last confirmed 22 days ago
A
Retailer 3
-
HK$13,339 HKD
View
A
Retailer 4
-
HK$14,225 HKD
View
A
Retailer 5
-
HK$14,546 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$14,640 HKD
View
A
Retailer 7
-
HK$14,883 HKD
View
A
Retailer 8
-
HK$16,639 HKD
View
Retailer 9
-
HK$17,556 HKD
View
Price last confirmed 21 days ago
Retailer 10
-
HK$17,720 HKD
View
Price last confirmed 29 days ago
Retailer 11
-
HK$18,128 HKD
View
Price last confirmed 21 days ago
B+
Retailer 12
-
HK$18,340 HKD
View
B+
Retailer 13
-
HK$18,340 HKD
View
Retailer 14
-
HK$18,363 HKD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
HK$18,786 HKD
View
B+
Retailer 16
-
HK$18,888 HKD
View
Retailer 17
-
HK$20,252 HKD
View
Price last confirmed 21 days ago
B+
Retailer 18
-
HK$21,224 HKD
View
B+
Retailer 19
-
HK$22,141 HKD
View
B
Retailer 20
-
HK$30,676 HKD
View
Most Expensive
NZ Jewellers
e55c1379-2256-414d-a26b-5ea956badb91 · Oct 3
HK$37,040 HKD
$4,726 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from HK$12,814 HKDSave up to HK$17,861 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$12,814 HKD