Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1439457358

Certificate GIA 1439457358

Diamond specifications and retailer prices

From HK$19,805 HKD
As of November 4, 2026
Save HK$40,086 HKD (67%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$59,891 HKD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1439457358. Listed at 21 retailers as of November 4, 2026, with prices from HK$19,805 to HK$59,891, a HK$40,086 spread on the same certified stone. Diamond Quarter lists it at HK$59,891. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1439457358
Dimensions6.79 × 6.75 × 4.25 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
6.79 mm6.75 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1439457358
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°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 4
Current: HK$28,160 HKD|Low: HK$17,995 HKD|High: HK$43,694 HKD|Avg: HK$25,921 HKD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6HK$20,260 HKD
Retailer 9HK$20,268 HKD
Retailer 7HK$21,592 HKD
Retailer 3HK$23,387 HKD
Retailer 10HK$23,888 HKD
Retailer 8HK$24,288 HKD
Retailer 11HK$25,393 HKD
Retailer 4HK$26,561 HKD
Retailer 2HK$26,984 HKD
Retailer 1HK$28,160 HKD
Retailer 5HK$43,059 HKD

41 data points across 11 retailers

21 retailersHK$19,805 HKD to HK$59,891 HKD

A
Cheapest Retailer
-
HK$19,805 HKD
A
Retailer 2
-
HK$20,260 HKD
View
A
Retailer 3
-
HK$20,268 HKD
View
A
Retailer 4
-
HK$20,338 HKD
View
A
Retailer 5
-
HK$21,592 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$21,592 HKD
View
Retailer 7
-
HK$23,387 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$23,387 HKD
View
B+
Retailer 9
-
HK$23,888 HKD
View
B+
Retailer 10
-
HK$24,288 HKD
View
B+
Retailer 11
-
HK$25,393 HKD
View
B+
Retailer 12
-
HK$26,561 HKD
View
B+
Retailer 13
-
HK$26,569 HKD
View
B+
Retailer 14
-
HK$26,569 HKD
View
B+
Retailer 15
-
HK$26,984 HKD
View
B+
Retailer 16
-
HK$27,509 HKD
View
B+
Retailer 17
-
HK$28,160 HKD
View
Retailer 18
-
HK$29,939 HKD
View
Price last confirmed 14 days ago
B
Retailer 19
-
HK$43,059 HKD
View
B
Retailer 20
-
HK$44,979 HKD
View
Most Expensive
B
Diamond Quarter
1.2SI2H14589FD0N · Nov 5
HK$59,891 HKD
£6,017 GBP
View
20 more retailers have this diamond
Prices start from HK$19,805 HKDSave up to HK$40,086 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$19,805 HKD