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Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 3415985694

Certificate GIA 3415985694

Diamond specifications and retailer prices

From HK$34,641 HKD
As of November 4, 2026
Save HK$18,841 HKD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$69,625 HKD at MOH London · As of November 4, 2026
View at MOH London

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 3415985694. Listed at 19 retailers as of November 4, 2026, with a 54% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3415985694
Dimensions5.88 × 5.67 × 4.12 mm
L/W Ratio1.04
Top View
5.88 mm5.67 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3415985694
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$69,625 HKD|Low: HK$34,916 HKD|High: HK$70,660 HKD|Avg: HK$47,088 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8HK$34,916 HKD
Retailer 11HK$35,707 HKD
Retailer 12HK$36,648 HKD
Retailer 4HK$37,298 HKD
Retailer 10HK$39,712 HKD
Retailer 6HK$42,095 HKD
Retailer 2HK$42,526 HKD
Retailer 3HK$43,897 HKD
Retailer 5HK$49,329 HKD
Retailer 7HK$53,482 HKD
Retailer 9HK$63,154 HKD
MOH LondonHK$69,625 HKD

35 data points across 12 retailers

19 retailersHK$34,641 HKD to HK$53,482 HKD

B
Cheapest Retailer
-
HK$34,641 HKD
B
Retailer 2
-
HK$34,916 HKD
View
B
Retailer 3
-
HK$35,707 HKD
View
B
Retailer 4
-
HK$36,648 HKD
View
Final sale: no returns
B
Retailer 5
-
HK$37,298 HKD
View
B
Retailer 6
-
HK$37,345 HKD
View
B
Retailer 7
-
HK$39,328 HKD
View
Retailer 8
-
HK$39,712 HKD
View
Price last confirmed 8 days ago
B
Retailer 9
-
HK$42,095 HKD
View
B
Retailer 10
-
HK$42,526 HKD
View
B
Retailer 11
-
HK$42,792 HKD
View
B
Retailer 12
-
HK$42,792 HKD
View
Retailer 13
-
HK$43,897 HKD
View
Price last confirmed 28 days ago
B
Retailer 14
-
HK$44,203 HKD
View
Retailer 15
-
HK$48,365 HKD
View
Price last confirmed 22 days ago
B
Retailer 16
-
HK$49,329 HKD
View
B
Retailer 17
-
HK$53,482 HKD
View
Retailer 18
-
HK$63,154 HKD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
8BE0C30AB · Nov 4
HK$69,625 HKD
£6,995 GBP
View
Price under review
18 more retailers have this diamond
Prices start from HK$34,641 HKDSave up to HK$18,841 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.

B
1.20ct Heart
HK$34,641 HKD