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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 1439777400

Certificate GIA 1439777400

Diamond specifications and retailer prices

From HK$21,067 HKD
As of November 6, 2026
Save HK$26,919 HKD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$47,986 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1439777400. Listed at 16 retailers as of November 4, 2026, with prices from HK$21,067 to HK$47,986, a HK$26,919 spread on the same certified stone. MOH London lists it at HK$47,986. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.26°
Pavilion angle55.01°
OriginNatural
Grading LabGIA
CertificateGIA 1439777400
Dimensions6.39 × 6.34 × 4.43 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
6.39 mm6.34 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1439777400
Side View
Table 62.0%Crown 42.26°Girdle: MED-STKPavilion 55.01°Culet: NoneDepth 69.8%

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$47,986 HKD|Low: HK$21,067 HKD|High: HK$48,693 HKD|Avg: HK$30,734 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
November 6, 2026
Retailer 10HK$21,067 HKD
Retailer 8HK$24,116 HKD
Retailer 11HK$26,553 HKD
Retailer 2HK$27,008 HKD
Retailer 4HK$27,149 HKD
Retailer 6HK$29,351 HKD
Retailer 9HK$29,790 HKD
Retailer 3HK$30,817 HKD
Retailer 5HK$33,489 HKD
Retailer 7HK$35,119 HKD
MOH LondonHK$47,986 HKD

34 data points across 11 retailers

16 retailersHK$21,067 HKD to HK$47,986 HKD

A
Cheapest Retailer
-
HK$21,067 HKD
A
Retailer 2
-
HK$24,116 HKD
View
A
Retailer 3
-
HK$25,346 HKD
View
A
Retailer 4
-
HK$25,542 HKD
View
B+
Retailer 5
-
HK$26,553 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$27,008 HKD
View
A
Retailer 7
-
HK$27,149 HKD
View
B+
Retailer 8
-
HK$27,588 HKD
View
B+
Retailer 9
-
HK$29,351 HKD
View
A
Retailer 10
-
HK$29,790 HKD
View
B+
Retailer 11
-
HK$29,908 HKD
View
Retailer 12
-
HK$30,817 HKD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
HK$33,489 HKD
View
B+
Retailer 14
-
HK$35,119 HKD
View
B
Retailer 15
-
HK$40,817 HKD
View
Most Expensive
B
MOH London
C664DE5D8 · Nov 4
HK$47,986 HKD
£4,821 GBP
View
15 more retailers have this diamond
Prices start from HK$21,067 HKDSave up to HK$26,919 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
1.51ct Heart
HK$21,067 HKD