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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6541494535

Certificate GIA 6541494535

Diamond specifications and retailer prices

From HK$19,758 HKD
As of November 6, 2026
Save HK$21,208 HKD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$44,140 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541494535. Listed at 19 retailers as of November 4, 2026, with a 107% 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

1.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541494535
Dimensions6.44 × 6.49 × 4.00 mm
L/W Ratio1.01
Top View
6.44 mm6.49 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541494535
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.9%

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$25,260 HKD|Low: HK$17,658 HKD|High: HK$42,878 HKD|Avg: HK$26,580 HKD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 17HK$19,758 HKD
Retailer 10HK$21,216 HKD
Retailer 14HK$22,313 HKD
Retailer 9HK$22,525 HKD
Retailer 2HK$22,674 HKD
Retailer 15HK$23,371 HKD
Retailer 3HK$23,395 HKD
Retailer 8HK$24,022 HKD
Retailer 1HK$25,260 HKD
Retailer 7HK$26,028 HKD
Retailer 18HK$26,122 HKD
Retailer 4HK$27,117 HKD
Retailer 6HK$27,164 HKD
Retailer 5HK$27,494 HKD
Retailer 11HK$28,536 HKD
Retailer 12HK$29,978 HKD
Retailer 16HK$39,524 HKD
Retailer 13HK$40,966 HKD

26 data points across 18 retailers

19 retailersHK$19,758 HKD to HK$40,966 HKD

A
Cheapest Retailer
-
HK$19,758 HKD
Retailer 2
-
HK$22,313 HKD
View
Price last confirmed 3 days ago
A
Retailer 3
-
HK$22,674 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$23,371 HKD
View
B+
Retailer 5
-
HK$23,395 HKD
View
Retailer 6
-
HK$24,022 HKD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
HK$25,260 HKD
View
Retailer 8
-
HK$26,028 HKD
View
Price last confirmed 45 days ago
Retailer 9
-
HK$26,028 HKD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
HK$26,067 HKD
View
B+
Retailer 11
-
HK$26,122 HKD
View
B+
Retailer 12
-
HK$27,117 HKD
View
Retailer 13
-
HK$27,164 HKD
View
Price last confirmed 34 days ago
B+
Retailer 14
-
HK$27,494 HKD
View
B+
Retailer 15
-
HK$28,536 HKD
View
B+
Retailer 16
-
HK$29,978 HKD
View
B
Retailer 17
-
HK$39,524 HKD
View
B
Retailer 18
-
HK$40,966 HKD
View
Most Expensive
NZ Jewellers
20ff54bb-8814-4b34-b9ed-4fb072bf2a3e · Sep 25
HK$44,140 HKD
$5,632 USD
View
Price last confirmed 42 days ago
18 more retailers have this diamond
Prices start from HK$19,758 HKDSave up to HK$21,208 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
1.05ct Round
HK$19,758 HKD