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Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 6541270102

Certificate GIA 6541270102

Diamond specifications and retailer prices

From HK$14,585 HKD
As of November 6, 2026
Save HK$20,017 HKD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$34,602 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541270102. Listed at 17 retailers as of November 5, 2026, with prices from HK$14,585 to HK$34,602, a HK$20,017 spread on the same certified stone. NZ Jewellers lists it at HK$34,602. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.92°
OriginNatural
Grading LabGIA
CertificateGIA 6541270102
Dimensions7.45 × 6.15 × 4.27 mm
L/W Ratio1.21
Top View
7.45 mm6.15 mm1.20 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6541270102
Side View
Table 65.0%Crown 34°Girdle: Extremely ThickPavilion 41.92°Culet: NoneDepth 57.4%

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$34,602 HKD|Low: HK$14,585 HKD|High: HK$35,652 HKD|Avg: HK$19,785 HKD|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 8HK$14,585 HKD
Retailer 6HK$15,275 HKD
Retailer 9HK$15,651 HKD
Retailer 5HK$16,357 HKD
Retailer 3HK$16,553 HKD
Retailer 15HK$16,733 HKD
Retailer 2HK$16,756 HKD
Retailer 7HK$17,054 HKD
Retailer 4HK$17,313 HKD
Retailer 11HK$17,532 HKD
Retailer 12HK$18,622 HKD
Retailer 13HK$20,197 HKD
Retailer 10HK$21,913 HKD
Retailer 14HK$28,912 HKD
NZ JewellersHK$34,602 HKD

28 data points across 15 retailers

17 retailersHK$14,585 HKD to HK$34,602 HKD

A
Cheapest Retailer
-
HK$14,585 HKD
A
Retailer 2
-
HK$15,275 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$15,651 HKD
View
A
Retailer 4
-
HK$16,357 HKD
View
A
Retailer 5
-
HK$16,553 HKD
View
A
Retailer 6
-
HK$16,733 HKD
View
A
Retailer 7
-
HK$16,756 HKD
View
A
Retailer 8
-
HK$16,850 HKD
View
Retailer 9
-
HK$17,054 HKD
View
Price last confirmed 8 days ago
A
Retailer 10
-
HK$17,313 HKD
View
A
Retailer 11
-
HK$17,532 HKD
View
A
Retailer 12
-
HK$18,622 HKD
View
B+
Retailer 13
-
HK$20,197 HKD
View
Retailer 14
-
HK$20,965 HKD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
HK$21,913 HKD
View
B
Retailer 16
-
HK$28,912 HKD
View
Most Expensive
B
NZ Jewellers
4380634e-7ea0-4409-b831-d3ffec60d129 · Nov 5
HK$34,602 HKD
$4,415 USD
View
16 more retailers have this diamond
Prices start from HK$14,585 HKDSave up to HK$20,017 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 Heart
HK$14,585 HKD