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Heart|Natural|GIA

1.20ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6305303260

Certificate GIA 6305303260

Diamond specifications and retailer prices

From HK$18,481 HKD
As of November 4, 2026
Save HK$21,443 HKD (54%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$39,923 HKD at MOH London · As of November 2, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6305303260. Listed at 4 retailers as of November 2, 2026, with prices from HK$18,481 to HK$39,923, a HK$21,443 spread on the same certified stone. MOH London lists it at HK$39,923. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6305303260
Dimensions6.08 × 7.31 × 4.32 mm
L/W Ratio1.20
Top View
6.08 mm7.31 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6305303260
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$39,923 HKD|Low: HK$23,638 HKD|High: HK$40,411 HKD|Avg: HK$29,169 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3HK$23,638 HKD
Retailer 2HK$24,915 HKD
Retailer 4HK$27,306 HKD
MOH LondonHK$39,923 HKD

37 data points across 4 retailers

4 retailersHK$18,481 HKD to HK$39,923 HKD

B+
Cheapest Retailer
-
HK$18,481 HKD
B
Retailer 2
-
HK$23,638 HKD
View
B
Retailer 3
-
HK$24,915 HKD
View
Most Expensive
B
MOH London
39260F071 · Nov 2
HK$39,923 HKD
£4,011 GBP
View
3 more retailers have this diamond
Prices start from HK$18,481 HKDSave up to HK$21,443 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$18,481 HKD