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Heart|Natural|GIA

1.05ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 1192456428

Certificate GIA 1192456428

Diamond specifications and retailer prices

From HK$23,935 HKD
As of November 4, 2026
Save HK$6,348 HKD (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$30,284 HKD at Belgium Diamonds · As of November 5, 2026
View at Belgium Diamonds

About this 1.05ct natural heart diamond

This 1.05ct natural heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1192456428. Listed at 8 retailers as of November 4, 2026, with prices from HK$23,935 to HK$30,284, a HK$6,348 spread on the same certified stone. Belgium Diamonds lists it at HK$30,284. 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

1.05
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1192456428
Dimensions8.40 × 6.56 × 1.91 mm
L/W Ratio1.28
Key to symbols
Feather, Crystal, Cavity, Etch Channel
Top View
8.40 mm6.56 mm1.05 ctE / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceMedium
CertificateGIA 1192456428
Side View
Table 65.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$26,161 HKD|Low: HK$22,815 HKD|High: HK$38,544 HKD|Avg: HK$28,576 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7HK$23,935 HKD
Retailer 4HK$24,884 HKD
Retailer 6HK$25,981 HKD
Retailer 1HK$26,161 HKD
Retailer 3HK$26,968 HKD
Retailer 5HK$28,685 HKD
Retailer 2HK$29,610 HKD
Retailer 9HK$32,274 HKD
Retailer 8HK$38,544 HKD

40 data points across 9 retailers

8 retailersHK$23,935 HKD to HK$30,284 HKD

B+
Cheapest Retailer
-
HK$23,935 HKD
B+
Retailer 2
-
HK$24,884 HKD
View
Final sale: no returns
B
Retailer 3
-
HK$25,981 HKD
View
B+
Retailer 4
-
HK$26,161 HKD
View
Retailer 5
-
HK$26,968 HKD
View
Price last confirmed 8 days ago
Retailer 6
-
HK$28,685 HKD
View
Price last confirmed 37 days ago
B
Retailer 7
-
HK$29,610 HKD
View
Most Expensive
B
Belgium Diamonds
357011410 · Nov 5
HK$30,284 HKD
€3,680 EUR
View
7 more retailers have this diamond
Prices start from HK$23,935 HKDSave up to HK$6,348 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.

B+
1.05ct Heart
HK$23,935 HKD