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Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6545229748

Certificate GIA 6545229748

Diamond specifications and retailer prices

From HK$15,448 HKD
As of November 6, 2026
Save HK$20,040 HKD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$42,463 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545229748. Listed at 21 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545229748
Dimensions6.85 × 6.81 × 4.16 mm
L/W Ratio1.01
Top View
6.85 mm6.81 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545229748
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.0%

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$16,004 HKD|Low: HK$15,448 HKD|High: HK$35,966 HKD|Avg: HK$22,568 HKD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2HK$15,448 HKD
Retailer 1HK$16,004 HKD
Retailer 9HK$17,995 HKD
Retailer 3HK$19,437 HKD
Retailer 5HK$21,365 HKD
Retailer 4HK$21,459 HKD
Retailer 6HK$23,787 HKD
Retailer 8HK$24,790 HKD
Retailer 7HK$25,158 HKD
Retailer 10HK$35,488 HKD

26 data points across 10 retailers

21 retailersHK$15,448 HKD to HK$35,488 HKD

A
Cheapest Retailer
-
HK$15,448 HKD
A
Retailer 2
-
HK$16,004 HKD
View
B+
Retailer 3
-
HK$17,995 HKD
View
B+
Retailer 4
-
HK$18,998 HKD
View
B+
Retailer 5
-
HK$19,108 HKD
View
B+
Retailer 6
-
HK$19,123 HKD
View
B+
Retailer 7
-
HK$19,437 HKD
View
Retailer 8
-
HK$20,315 HKD
View
Price last confirmed 39 days ago
Retailer 9
-
HK$20,315 HKD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
HK$20,769 HKD
View
Retailer 11
-
HK$21,247 HKD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
HK$21,365 HKD
View
B
Retailer 13
-
HK$21,412 HKD
View
B
Retailer 14
-
HK$21,459 HKD
View
Retailer 15
-
HK$23,434 HKD
View
Price last confirmed 38 days ago
B+
Retailer 16
-
HK$23,787 HKD
View
B
Retailer 17
-
HK$24,790 HKD
View
B+
Retailer 18
-
HK$25,158 HKD
View
B
Retailer 19
-
HK$35,488 HKD
View
Retailer 20
-
HK$42,463 HKD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
7345e70d-e7af-4eb5-af27-664b25f58f0f · Oct 3
HK$42,463 HKD
$5,418 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from HK$15,448 HKDSave up to HK$20,040 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$15,448 HKD