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Heart|Natural|GIA

1.00ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6551331596

Certificate GIA 6551331596

Diamond specifications and retailer prices

From HK$9,475 HKD
As of November 6, 2026
Save HK$21,130 HKD (69%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$30,605 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I 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 6551331596. Listed at 13 retailers as of November 5, 2026, with prices from HK$9,475 to HK$30,605, a HK$21,130 spread on the same certified stone. NZ Jewellers lists it at HK$30,605. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551331596
Dimensions5.97 × 6.92 × 4.05 mm
L/W Ratio1.16
Girdle conditionVery Thick
Top View
5.97 mm6.92 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551331596
Side View
Table 54.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 58.5%

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$30,605 HKD|Low: HK$9,475 HKD|High: HK$30,605 HKD|Avg: HK$14,924 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2HK$9,475 HKD
Retailer 11HK$10,016 HKD
Retailer 12HK$11,631 HKD
Retailer 10HK$11,639 HKD
Retailer 5HK$12,171 HKD
Retailer 3HK$12,375 HKD
Retailer 4HK$13,614 HKD
Retailer 7HK$13,911 HKD
Retailer 8HK$15,306 HKD
Retailer 6HK$17,039 HKD
Retailer 9HK$21,913 HKD
NZ JewellersHK$30,605 HKD

25 data points across 12 retailers

13 retailersHK$9,475 HKD to HK$30,605 HKD

A
Cheapest Retailer
-
HK$9,475 HKD
A
Retailer 2
-
HK$10,016 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$11,631 HKD
View
A
Retailer 4
-
HK$11,639 HKD
View
A
Retailer 5
-
HK$12,171 HKD
View
A
Retailer 6
-
HK$12,375 HKD
View
B+
Retailer 7
-
HK$13,614 HKD
View
B+
Retailer 8
-
HK$13,911 HKD
View
B+
Retailer 9
-
HK$15,306 HKD
View
B+
Retailer 10
-
HK$17,039 HKD
View
Retailer 11
-
HK$17,109 HKD
View
Price last confirmed 33 days ago
B
Retailer 12
-
HK$21,913 HKD
View
Most Expensive
B
NZ Jewellers
78097f80-a556-4d92-a4a2-3b91b4f8b8e4 · Nov 5
HK$30,605 HKD
$3,905 USD
View
12 more retailers have this diamond
Prices start from HK$9,475 HKDSave up to HK$21,130 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
1.00ct Heart
HK$9,475 HKD