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Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 7442234987

Certificate GIA 7442234987

Diamond specifications and retailer prices

From HK$16,216 HKD
As of November 6, 2026
Save HK$5,862 HKD (27%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$31,622 HKD at MOH London · As of October 29, 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 J 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 7442234987. Listed at 11 retailers as of November 6, 2026, with a 36% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7442234987
Dimensions6.25 × 5.75 × 3.96 mm
L/W Ratio1.09
Top View
6.25 mm5.75 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7442234987
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.8%

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 6
Current: HK$31,622 HKD|Low: HK$13,504 HKD|High: HK$31,831 HKD|Avg: HK$20,817 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2HK$16,412 HKD
Retailer 7HK$17,415 HKD
Retailer 5HK$17,979 HKD
Retailer 8HK$17,987 HKD
Retailer 4HK$21,906 HKD
Retailer 3HK$22,078 HKD
Retailer 6HK$22,101 HKD
MOH LondonHK$31,622 HKD

46 data points across 8 retailers

11 retailersHK$16,216 HKD to HK$22,078 HKD

B+
Cheapest Retailer
-
HK$16,216 HKD
B+
Retailer 2
-
HK$16,412 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$17,415 HKD
View
B+
Retailer 4
-
HK$17,979 HKD
View
B
Retailer 5
-
HK$17,987 HKD
View
B
Retailer 6
-
HK$18,112 HKD
View
B
Retailer 7
-
HK$19,037 HKD
View
B
Retailer 8
-
HK$21,906 HKD
View
B
Retailer 9
-
HK$22,078 HKD
View
Retailer 10
-
HK$22,101 HKD
View
Price last confirmed 30 days ago
Most Expensive
MOH London
CFEA340F3 · Oct 29
HK$31,622 HKD
£3,177 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from HK$16,216 HKDSave up to HK$5,862 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$16,216 HKD