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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 1553596973

Certificate GIA 1553596973

Diamond specifications and retailer prices

From HK$9,789 HKD
As of November 6, 2026
Save HK$9,938 HKD (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$27,063 HKD at NZ Jewellers · As of September 26, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553596973. Listed at 16 retailers as of November 1, 2026, with a 102% 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

1.00
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.83°
Pavilion angle38.79°
OriginNatural
Grading LabGIA
CertificateGIA 1553596973
Dimensions6.97 × 6.08 × 3.84 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle, Etch Channel
Top View
6.97 mm6.08 mm1.00 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553596973
Side View
Table 64.0%Crown 37.83°Girdle: Very ThickPavilion 38.79°Culet: NoneDepth 55.1%

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$9,789 HKD|Low: HK$7,916 HKD|High: HK$20,573 HKD|Avg: HK$12,997 HKD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1HK$9,789 HKD
Retailer 5HK$9,836 HKD
Retailer 6HK$10,432 HKD
Retailer 3HK$11,098 HKD
Retailer 10HK$11,270 HKD
Retailer 2HK$11,294 HKD
Retailer 8HK$11,670 HKD
Retailer 4HK$11,693 HKD
Retailer 9HK$12,007 HKD
Retailer 7HK$14,719 HKD
Retailer 11HK$19,727 HKD

35 data points across 11 retailers

16 retailersHK$9,789 HKD to HK$19,727 HKD

A
Cheapest Retailer
-
HK$9,789 HKD
Final sale: no returns
A
Retailer 2
-
HK$9,836 HKD
View
A
Retailer 3
-
HK$10,432 HKD
View
Retailer 4
-
HK$11,098 HKD
View
Price last confirmed 8 days ago
Retailer 5
-
HK$11,098 HKD
View
Price last confirmed 41 days ago
Retailer 6
-
HK$11,098 HKD
View
Price last confirmed 21 days ago
A
Retailer 7
-
HK$11,270 HKD
View
A
Retailer 8
-
HK$11,294 HKD
View
A
Retailer 9
-
HK$11,670 HKD
View
A
Retailer 10
-
HK$11,693 HKD
View
A
Retailer 11
-
HK$12,007 HKD
View
Retailer 12
-
HK$12,806 HKD
View
Price last confirmed 61 days ago
Retailer 13
-
HK$12,806 HKD
View
Price last confirmed 43 days ago
B+
Retailer 14
-
HK$14,719 HKD
View
B+
Retailer 15
-
HK$19,727 HKD
View
Most Expensive
NZ Jewellers
d70c30ee-10c2-461f-a977-d0efbba75e88 · Sep 26
HK$27,063 HKD
$3,453 USD
View
Price last confirmed 41 days ago
15 more retailers have this diamond
Prices start from HK$9,789 HKDSave up to HK$9,938 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$9,789 HKD