CaratHunter
Plans
Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1557218523

Certificate GIA 1557218523

Diamond specifications and retailer prices

From HK$15,448 HKD
As of November 6, 2026
Save HK$20,409 HKD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$42,902 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 1557218523. Listed at 20 retailers as of November 4, 2026, with a 132% 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
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1557218523
Dimensions6.77 × 6.80 × 4.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Indented Natural
Top View
6.77 mm6.80 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1557218523
Side View
Table 57.0%Crown 36°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 62.8%

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$25,573 HKD|Low: HK$15,448 HKD|High: HK$36,334 HKD|Avg: HK$22,586 HKD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9HK$15,448 HKD
Retailer 2HK$16,004 HKD
Retailer 7HK$17,995 HKD
Retailer 3HK$19,633 HKD
Retailer 4HK$21,459 HKD
Retailer 5HK$21,584 HKD
Retailer 6HK$25,048 HKD
Retailer 1HK$25,573 HKD
Retailer 8HK$35,856 HKD

27 data points across 9 retailers

20 retailersHK$15,448 HKD to HK$35,856 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$19,108 HKD
View
B+
Retailer 5
-
HK$19,123 HKD
View
B+
Retailer 6
-
HK$19,123 HKD
View
B+
Retailer 7
-
HK$19,633 HKD
View
Retailer 8
-
HK$20,518 HKD
View
Price last confirmed 39 days ago
Retailer 9
-
HK$20,518 HKD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
HK$21,004 HKD
View
Retailer 11
-
HK$21,310 HKD
View
Price last confirmed 38 days ago
B
Retailer 12
-
HK$21,459 HKD
View
B+
Retailer 13
-
HK$21,584 HKD
View
B
Retailer 14
-
HK$21,623 HKD
View
Retailer 15
-
HK$23,677 HKD
View
Price last confirmed 38 days ago
B
Retailer 16
-
HK$25,048 HKD
View
B
Retailer 17
-
HK$25,573 HKD
View
B
Retailer 18
-
HK$35,856 HKD
View
Retailer 19
-
HK$42,902 HKD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
91146f89-0f16-4898-9c1f-0dc4da1ab6cd · Oct 3
HK$42,902 HKD
$5,474 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from HK$15,448 HKDSave up to HK$20,409 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