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Heart|Natural|GIA

1.55ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6555797191

Certificate GIA 6555797191

Diamond specifications and retailer prices

From HK$30,292 HKD
As of November 6, 2026
Save HK$38,772 HKD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$69,063 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded H 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 6555797191. Listed at 10 retailers as of November 5, 2026, with prices from HK$30,292 to HK$69,063, a HK$38,772 spread on the same certified stone. NZ Jewellers lists it at HK$69,063. 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

1.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle36.87°
OriginNatural
Grading LabGIA
CertificateGIA 6555797191
Dimensions7.28 × 7.95 × 4.10 mm
L/W Ratio1.09
Key to symbols
Crystal, Cloud, Needle
Top View
7.28 mm7.95 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555797191
Side View
Table 62.0%CrownGirdle: STK-VTKPavilion 36.87°Culet: NoneDepth 56.3%

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$69,063 HKD|Low: HK$30,292 HKD|High: HK$75,795 HKD|Avg: HK$46,959 HKD|-8.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8HK$30,292 HKD
Retailer 4HK$34,955 HKD
Retailer 7HK$36,350 HKD
Retailer 9HK$39,297 HKD
Retailer 5HK$41,287 HKD
Retailer 6HK$41,287 HKD
Retailer 2HK$47,158 HKD
Retailer 3HK$65,583 HKD
NZ JewellersHK$69,063 HKD

41 data points across 9 retailers

10 retailersHK$30,292 HKD to HK$69,063 HKD

A
Cheapest Retailer
-
HK$30,292 HKD
A
Retailer 2
-
HK$34,955 HKD
View
A
Retailer 3
-
HK$36,350 HKD
View
Retailer 4
-
HK$39,297 HKD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
HK$41,287 HKD
View
B+
Retailer 6
-
HK$41,287 HKD
View
B+
Retailer 7
-
HK$44,101 HKD
View
B+
Retailer 8
-
HK$47,158 HKD
View
B
Retailer 9
-
HK$65,583 HKD
View
Most Expensive
B
NZ Jewellers
6cb629f5-aa1b-47e8-bb9b-7983ae7fefb7 · Nov 5
HK$69,063 HKD
$8,812 USD
View
9 more retailers have this diamond
Prices start from HK$30,292 HKDSave up to HK$38,772 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
1.55ct Heart
HK$30,292 HKD