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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 5426197929

Certificate GIA 5426197929

Diamond specifications and retailer prices

From HK$22,572 HKD
As of November 6, 2026
Save HK$39,415 HKD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$61,987 HKD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 5426197929. Listed at 19 retailers as of November 5, 2026, with prices from HK$22,572 to HK$61,987, a HK$39,415 spread on the same certified stone. Diamond Quarter lists it at HK$61,987. 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 angle32°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5426197929
Dimensions6.55 × 6.54 × 4.02 mm
L/W Ratio1.00
Top View
6.55 mm6.54 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5426197929
Side View
Table 60.0%Crown 32°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.5%

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$36,961 HKD|Low: HK$21,145 HKD|High: HK$51,257 HKD|Avg: HK$30,927 HKD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6HK$22,572 HKD
Retailer 2HK$23,348 HKD
Retailer 8HK$25,315 HKD
Retailer 7HK$25,785 HKD
Retailer 10HK$28,489 HKD
Retailer 4HK$30,480 HKD
Retailer 9HK$32,439 HKD
Retailer 3HK$35,166 HKD
Retailer 1HK$36,961 HKD
Retailer 5HK$50,653 HKD

43 data points across 10 retailers

19 retailersHK$22,572 HKD to HK$61,987 HKD

A
Cheapest Retailer
-
HK$22,572 HKD
B+
Retailer 2
-
HK$25,315 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$25,769 HKD
View
B+
Retailer 4
-
HK$25,785 HKD
View
Retailer 5
-
HK$27,439 HKD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$27,439 HKD
View
B+
Retailer 7
-
HK$28,489 HKD
View
B+
Retailer 8
-
HK$30,480 HKD
View
B+
Retailer 9
-
HK$30,856 HKD
View
B+
Retailer 10
-
HK$31,036 HKD
View
B+
Retailer 11
-
HK$31,036 HKD
View
B+
Retailer 12
-
HK$31,655 HKD
View
B+
Retailer 13
-
HK$32,133 HKD
View
Retailer 14
-
HK$32,439 HKD
View
Price last confirmed 30 days ago
B
Retailer 15
-
HK$35,166 HKD
View
B
Retailer 16
-
HK$36,961 HKD
View
B
Retailer 17
-
HK$50,653 HKD
View
B
Retailer 18
-
HK$52,761 HKD
View
Most Expensive
B
Diamond Quarter
1.05SI1F5429FE07N · Nov 5
HK$61,987 HKD
£6,228 GBP
View
18 more retailers have this diamond
Prices start from HK$22,572 HKDSave up to HK$39,415 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$22,572 HKD