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Round|Natural|GIA

1.00ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1559065480

Certificate GIA 1559065480

Diamond specifications and retailer prices

From HK$10,442 HKD
As of November 4, 2026
Save HK$13,808 HKD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$34,103 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1559065480. Listed at 20 retailers as of November 2, 2026, with a 132% 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

1.00
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1559065480
Dimensions6.33 × 6.38 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Indented Natural, Natural
Top View
6.33 mm6.38 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559065480
Side View
Table 58.0%Crown 34.5°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 63.1%

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 4
Current: HK$11,313 HKD|Low: HK$10,442 HKD|High: HK$24,783 HKD|Avg: HK$15,391 HKD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 9HK$10,442 HKD
Retailer 7HK$11,023 HKD
Retailer 1HK$11,313 HKD
Retailer 4HK$13,313 HKD
Retailer 11HK$13,509 HKD
Retailer 3HK$13,964 HKD
Retailer 2HK$14,914 HKD
Retailer 5HK$15,298 HKD
Retailer 10HK$16,851 HKD
Retailer 6HK$18,821 HKD
Retailer 8HK$24,250 HKD

28 data points across 11 retailers

20 retailersHK$10,442 HKD to HK$24,250 HKD

A
Cheapest Retailer
-
HK$10,442 HKD
A
Retailer 2
-
HK$11,023 HKD
View
A
Retailer 3
-
HK$11,313 HKD
View
B+
Retailer 4
-
HK$13,172 HKD
View
B+
Retailer 5
-
HK$13,180 HKD
View
A
Retailer 6
-
HK$13,313 HKD
View
B+
Retailer 7
-
HK$13,509 HKD
View
B+
Retailer 8
-
HK$13,964 HKD
View
Retailer 9
-
HK$13,980 HKD
View
Price last confirmed 39 days ago
Retailer 10
-
HK$13,980 HKD
View
Price last confirmed 36 days ago
Retailer 11
-
HK$14,561 HKD
View
Price last confirmed 10 days ago
Retailer 12
-
HK$14,631 HKD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
HK$14,914 HKD
View
B+
Retailer 14
-
HK$15,298 HKD
View
Retailer 15
-
HK$16,138 HKD
View
Price last confirmed 39 days ago
Retailer 16
-
HK$16,138 HKD
View
Price last confirmed 38 days ago
Retailer 17
-
HK$16,851 HKD
View
Price last confirmed 11 days ago
B
Retailer 18
-
HK$18,821 HKD
View
B
Retailer 19
-
HK$24,250 HKD
View
Most Expensive
NZ Jewellers
5a5dec67-3276-44b6-9378-734f69422a74 · Sep 28
HK$34,103 HKD
$4,347 USD
View
Price last confirmed 39 days ago
19 more retailers have this diamond
Prices start from HK$10,442 HKDSave up to HK$13,808 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
1.00ct Round
HK$10,442 HKD