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Round|Natural|GIA

1.05ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1555614721

Certificate GIA 1555614721

Diamond specifications and retailer prices

From HK$17,793 HKD
As of November 6, 2026
Save HK$27,654 HKD (61%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$45,447 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 1555614721. Listed at 21 retailers as of November 5, 2026, with prices from HK$17,793 to HK$45,447, a HK$27,654 spread on the same certified stone. NZ Jewellers lists it at HK$45,447. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555614721
Dimensions6.51 × 6.53 × 4.04 mm
L/W Ratio1.00
Girdle conditionSlightly Thick
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Cloud
Top View
6.51 mm6.53 mm1.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555614721
Side View
Table 56.0%Crown 35°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$45,447 HKD|Low: HK$16,663 HKD|High: HK$45,447 HKD|Avg: HK$24,240 HKD
NZ Jewellers
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
November 6, 2026
Retailer 7HK$17,793 HKD
Retailer 5HK$17,809 HKD
Retailer 6HK$18,177 HKD
Retailer 14HK$19,691 HKD
Retailer 16HK$19,691 HKD
Retailer 15HK$20,601 HKD
Retailer 9HK$20,782 HKD
Retailer 4HK$22,335 HKD
Retailer 3HK$22,728 HKD
Retailer 2HK$22,735 HKD
Retailer 8HK$24,352 HKD
Retailer 13HK$25,371 HKD
Retailer 10HK$25,599 HKD
Retailer 11HK$26,532 HKD
Retailer 12HK$37,986 HKD
NZ JewellersHK$45,447 HKD

31 data points across 16 retailers

21 retailersHK$17,793 HKD to HK$45,447 HKD

A
Cheapest Retailer
-
HK$17,793 HKD
A
Retailer 2
-
HK$17,809 HKD
View
A
Retailer 3
-
HK$18,177 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$18,962 HKD
View
A
Retailer 5
-
HK$19,691 HKD
View
Retailer 6
-
HK$19,691 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$20,029 HKD
View
B+
Retailer 8
-
HK$20,601 HKD
View
B+
Retailer 9
-
HK$20,609 HKD
View
B+
Retailer 10
-
HK$20,782 HKD
View
B+
Retailer 11
-
HK$22,335 HKD
View
B+
Retailer 12
-
HK$22,728 HKD
View
B+
Retailer 13
-
HK$22,735 HKD
View
B+
Retailer 14
-
HK$24,320 HKD
View
Retailer 15
-
HK$24,352 HKD
View
Price last confirmed 30 days ago
B+
Retailer 16
-
HK$24,814 HKD
View
B+
Retailer 17
-
HK$25,371 HKD
View
B+
Retailer 18
-
HK$25,599 HKD
View
B
Retailer 19
-
HK$26,532 HKD
View
B
Retailer 20
-
HK$37,986 HKD
View
Most Expensive
B
NZ Jewellers
e8e9a1de-dcce-42c5-84ec-6cec898aa17c · Nov 5
HK$45,447 HKD
$5,793 USD
View
20 more retailers have this diamond
Prices start from HK$17,793 HKDSave up to HK$27,654 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$17,793 HKD