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Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2556151106

Certificate GIA 2556151106

Diamond specifications and retailer prices

From HK$15,549 HKD
As of November 6, 2026
Save HK$20,228 HKD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$44,144 HKD at Queensmith · As of October 28, 2026
View at Queensmith

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 2556151106. Listed at 19 retailers as of November 4, 2026, with a 130% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556151106
Dimensions6.74 × 6.79 × 4.26 mm
L/W Ratio1.01
Top View
6.74 mm6.79 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556151106
Side View
Table 57.0%Crown 36.5°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 62.9%

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$44,144 HKD|Low: HK$15,448 HKD|High: HK$44,293 HKD|Avg: HK$24,022 HKD|+3.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3HK$15,549 HKD
Retailer 2HK$16,192 HKD
Retailer 8HK$18,136 HKD
Retailer 12HK$18,896 HKD
Retailer 4HK$20,691 HKD
Retailer 11HK$20,926 HKD
Retailer 6HK$21,537 HKD
Retailer 10HK$21,576 HKD
Retailer 5HK$21,631 HKD
Retailer 7HK$25,370 HKD
Retailer 9HK$35,778 HKD
QueensmithHK$44,144 HKD

36 data points across 12 retailers

19 retailersHK$15,549 HKD to HK$35,778 HKD

A
Cheapest Retailer
-
HK$15,549 HKD
A
Retailer 2
-
HK$16,192 HKD
View
A
Retailer 3
-
HK$18,136 HKD
View
A
Retailer 4
-
HK$18,896 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$19,264 HKD
View
Retailer 6
-
HK$20,691 HKD
View
Price last confirmed 39 days ago
Retailer 7
-
HK$20,691 HKD
View
Price last confirmed 21 days ago
Retailer 8
-
HK$20,691 HKD
View
Price last confirmed 17 days ago
A
Retailer 9
-
HK$20,926 HKD
View
Retailer 10
-
HK$21,482 HKD
View
Price last confirmed 38 days ago
A
Retailer 11
-
HK$21,537 HKD
View
B+
Retailer 12
-
HK$21,576 HKD
View
B+
Retailer 13
-
HK$21,631 HKD
View
Retailer 14
-
HK$23,873 HKD
View
Price last confirmed 38 days ago
B+
Retailer 15
-
HK$25,370 HKD
View
B
Retailer 16
-
HK$35,778 HKD
View
Retailer 17
-
HK$43,247 HKD
View
Price last confirmed 20 days ago
Retailer 18
-
HK$43,247 HKD
View
Price last confirmed 39 days ago
Most Expensive
Queensmith
2556151106 · Oct 28
HK$44,144 HKD
£4,435 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from HK$15,549 HKDSave up to HK$20,228 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$15,549 HKD