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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7496000425

Certificate GIA 7496000425

Diamond specifications and retailer prices

From HK$15,063 HKD
As of November 6, 2026
Save HK$27,317 HKD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$42,380 HKD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7496000425. Listed at 18 retailers as of November 5, 2026, with prices from HK$15,063 to HK$42,380, a HK$27,317 spread on the same certified stone. NZ Jewellers lists it at HK$42,380. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7496000425
Dimensions6.61 × 6.57 × 3.94 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Indented Natural, Needle
Top View
6.61 mm6.57 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7496000425
Side View
Table 59.0%Crown 32.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 59.7%

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$19,393 HKD|Low: HK$15,063 HKD|High: HK$35,947 HKD|Avg: HK$21,528 HKD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7HK$15,063 HKD
Retailer 10HK$15,439 HKD
Retailer 8HK$16,593 HKD
Retailer 2HK$18,358 HKD
Retailer 1HK$19,393 HKD
Retailer 3HK$21,323 HKD
Retailer 9HK$22,712 HKD
Retailer 6HK$22,751 HKD
Retailer 4HK$24,744 HKD
Retailer 5HK$35,413 HKD

38 data points across 10 retailers

18 retailersHK$15,063 HKD to HK$42,380 HKD

A
Cheapest Retailer
-
HK$15,063 HKD
A
Retailer 2
-
HK$15,439 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$16,593 HKD
View
A
Retailer 4
-
HK$18,358 HKD
View
A
Retailer 5
-
HK$18,366 HKD
View
Retailer 6
-
HK$18,366 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$19,213 HKD
View
A
Retailer 8
-
HK$19,393 HKD
View
B+
Retailer 9
-
HK$21,182 HKD
View
B+
Retailer 10
-
HK$21,182 HKD
View
B+
Retailer 11
-
HK$21,190 HKD
View
B+
Retailer 12
-
HK$21,323 HKD
View
B+
Retailer 13
-
HK$21,888 HKD
View
Retailer 14
-
HK$22,712 HKD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
HK$22,751 HKD
View
B+
Retailer 16
-
HK$24,744 HKD
View
B
Retailer 17
-
HK$35,413 HKD
View
Most Expensive
B
NZ Jewellers
aacb2e51-d5c4-41d4-a85f-c2cbc8c4d6c6 · Nov 5
HK$42,380 HKD
$5,402 USD
View
17 more retailers have this diamond
Prices start from HK$15,063 HKDSave up to HK$27,317 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$15,063 HKD