Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5566279707

Certificate GIA 5566279707

Diamond specifications and retailer prices

From HK$19,562 HKD
As of November 6, 2026
Save HK$23,928 HKD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$48,523 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566279707. Listed at 22 retailers as of November 2, 2026, with a 122% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5566279707
Dimensions6.75 × 6.70 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural, Extra Facet
Top View
6.75 mm6.70 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5566279707
Side View
Table 59.0%Crown 35.5°Girdle: MED-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$48,523 HKD|Low: HK$19,562 HKD|High: HK$48,673 HKD|Avg: HK$30,771 HKD|+2.7%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9HK$19,562 HKD
Retailer 4HK$20,330 HKD
Retailer 7HK$22,862 HKD
Retailer 10HK$24,061 HKD
Retailer 5HK$24,884 HKD
Retailer 2HK$26,749 HKD
Retailer 3HK$30,386 HKD
Retailer 6HK$31,741 HKD
Retailer 8HK$43,490 HKD
QueensmithHK$48,523 HKD

25 data points across 10 retailers

22 retailersHK$19,562 HKD to HK$43,490 HKD

A
Cheapest Retailer
-
HK$19,562 HKD
A
Retailer 2
-
HK$20,330 HKD
View
A
Retailer 3
-
HK$22,862 HKD
View
B+
Retailer 4
-
HK$23,285 HKD
View
B+
Retailer 5
-
HK$23,998 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$24,061 HKD
View
B+
Retailer 7
-
HK$24,061 HKD
View
B+
Retailer 8
-
HK$24,884 HKD
View
Retailer 9
-
HK$26,012 HKD
View
Price last confirmed 20 days ago
Retailer 10
-
HK$26,012 HKD
View
Price last confirmed 26 days ago
B+
Retailer 11
-
HK$26,255 HKD
View
B+
Retailer 12
-
HK$26,749 HKD
View
Retailer 13
-
HK$27,008 HKD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
HK$27,133 HKD
View
B+
Retailer 15
-
HK$27,258 HKD
View
Retailer 16
-
HK$27,885 HKD
View
Price last confirmed 34 days ago
Retailer 17
-
HK$30,009 HKD
View
Price last confirmed 20 days ago
B
Retailer 18
-
HK$30,386 HKD
View
B+
Retailer 19
-
HK$31,741 HKD
View
B
Retailer 20
-
HK$43,490 HKD
View
Retailer 21
-
HK$45,316 HKD
View
Price last confirmed 21 days ago
Most Expensive
Queensmith
5566279707 · Oct 28
HK$48,523 HKD
£4,875 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from HK$19,562 HKDSave up to HK$23,928 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$19,562 HKD