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Round|Natural|GIA

1.20ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6555412535

Certificate GIA 6555412535

Diamond specifications and retailer prices

From HK$12,113 HKD
As of November 6, 2026
Save HK$17,942 HKD (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$30,055 HKD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555412535. Listed at 9 retailers as of November 5, 2026, with prices from HK$12,113 to HK$30,055, a HK$17,942 spread on the same certified stone. NZ Jewellers lists it at HK$30,055. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555412535
Dimensions6.71 × 6.76 × 4.20 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Cavity, Feather, Needle, Natural
Top View
6.71 mm6.76 mm1.20 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555412535
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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$30,055 HKD|Low: HK$12,105 HKD|High: HK$30,055 HKD|Avg: HK$15,606 HKD|+0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2HK$12,113 HKD
Retailer 5HK$12,325 HKD
Retailer 7HK$12,325 HKD
Retailer 8HK$12,890 HKD
Retailer 9HK$12,984 HKD
Retailer 6HK$14,216 HKD
Retailer 4HK$15,039 HKD
Retailer 3HK$16,695 HKD
NZ JewellersHK$30,055 HKD

40 data points across 9 retailers

9 retailersHK$12,113 HKD to HK$30,055 HKD

A
Cheapest Retailer
-
HK$12,113 HKD
A
Retailer 2
-
HK$12,325 HKD
View
Retailer 3
-
HK$12,325 HKD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
HK$12,890 HKD
View
B+
Retailer 5
-
HK$12,984 HKD
View
B+
Retailer 6
-
HK$14,216 HKD
View
B+
Retailer 7
-
HK$15,039 HKD
View
B+
Retailer 8
-
HK$16,695 HKD
View
Most Expensive
C
NZ Jewellers
54b1ff15-49cf-4bc5-b5df-5bc48f4b0db9 · Nov 5
HK$30,055 HKD
$3,831 USD
View
8 more retailers have this diamond
Prices start from HK$12,113 HKDSave up to HK$17,942 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$12,113 HKD