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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6395991628

Certificate GIA 6395991628

Diamond specifications and retailer prices

From HK$34,116 HKD
As of November 6, 2026
Save HK$40,927 HKD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$75,043 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6395991628. Listed at 17 retailers as of November 5, 2026, with prices from HK$34,116 to HK$75,043, a HK$40,927 spread on the same certified stone. NZ Jewellers lists it at HK$75,043. 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6395991628
Dimensions7.21 × 7.86 × 4.42 mm
L/W Ratio1.09
Top View
7.21 mm7.86 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6395991628
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 56.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$42,479 HKD|Low: HK$33,928 HKD|High: HK$70,576 HKD|Avg: HK$45,806 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3HK$34,116 HKD
Retailer 6HK$34,876 HKD
Retailer 1HK$42,479 HKD
Retailer 5HK$44,869 HKD
Retailer 2HK$50,489 HKD
Retailer 4HK$69,549 HKD

43 data points across 6 retailers

17 retailersHK$34,116 HKD to HK$75,043 HKD

A
Cheapest Retailer
-
HK$34,116 HKD
B+
Retailer 2
-
HK$34,876 HKD
View
B+
Retailer 3
-
HK$36,993 HKD
View
B+
Retailer 4
-
HK$36,993 HKD
View
B+
Retailer 5
-
HK$37,964 HKD
View
B+
Retailer 6
-
HK$38,247 HKD
View
B+
Retailer 7
-
HK$39,132 HKD
View
B+
Retailer 8
-
HK$42,479 HKD
View
B
Retailer 9
-
HK$44,305 HKD
View
Retailer 10
-
HK$44,869 HKD
View
Price last confirmed 9 days ago
B
Retailer 11
-
HK$44,869 HKD
View
B
Retailer 12
-
HK$44,869 HKD
View
B
Retailer 13
-
HK$46,076 HKD
View
B+
Retailer 14
-
HK$50,489 HKD
View
B
Retailer 15
-
HK$51,766 HKD
View
B
Retailer 16
-
HK$69,549 HKD
View
Most Expensive
B
NZ Jewellers
1fc45747-6b72-4cb9-9f11-25bbf6aa3c05 · Nov 5
HK$75,043 HKD
$9,575 USD
View
16 more retailers have this diamond
Prices start from HK$34,116 HKDSave up to HK$40,927 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$34,116 HKD