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Round|Natural|GIA

1.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 1565410290

Certificate GIA 1565410290

Diamond specifications and retailer prices

From HK$18,857 HKD
As of November 6, 2026
Save HK$24,617 HKD (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$43,474 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 1565410290. Listed at 24 retailers as of November 5, 2026, with prices from HK$18,857 to HK$43,474, a HK$24,617 spread on the same certified stone. NZ Jewellers lists it at HK$43,474. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1565410290
Dimensions6.39 × 6.41 × 3.92 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.39 mm6.41 mm1.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565410290
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

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$43,474 HKD|Low: HK$18,653 HKD|High: HK$43,474 HKD|Avg: HK$28,346 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
Retailer 17
Retailer 18
November 6, 2026
Retailer 3HK$18,857 HKD
Retailer 2HK$19,539 HKD
Retailer 15HK$21,921 HKD
Retailer 17HK$22,807 HKD
Retailer 10HK$23,034 HKD
Retailer 4HK$23,081 HKD
Retailer 11HK$23,881 HKD
Retailer 5HK$24,954 HKD
Retailer 7HK$24,954 HKD
Retailer 13HK$25,660 HKD
Retailer 6HK$25,918 HKD
Retailer 12HK$26,153 HKD
Retailer 9HK$28,795 HKD
Retailer 16HK$29,022 HKD
Retailer 14HK$30,456 HKD
Retailer 8HK$41,554 HKD
Retailer 18HK$41,734 HKD
NZ JewellersHK$43,474 HKD

21 data points across 18 retailers

24 retailersHK$18,857 HKD to HK$43,474 HKD

A
Cheapest Retailer
-
HK$18,857 HKD
A
Retailer 2
-
HK$19,539 HKD
View
A
Retailer 3
-
HK$21,921 HKD
View
B+
Retailer 4
-
HK$22,360 HKD
View
B+
Retailer 5
-
HK$22,768 HKD
View
B+
Retailer 6
-
HK$22,807 HKD
View
B+
Retailer 7
-
HK$23,034 HKD
View
Final sale: no returns
B+
Retailer 8
-
HK$23,081 HKD
View
B+
Retailer 9
-
HK$23,081 HKD
View
B+
Retailer 10
-
HK$23,881 HKD
View
B+
Retailer 11
-
HK$24,954 HKD
View
Retailer 12
-
HK$24,954 HKD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
HK$25,236 HKD
View
B+
Retailer 14
-
HK$25,660 HKD
View
B+
Retailer 15
-
HK$25,918 HKD
View
B+
Retailer 16
-
HK$26,075 HKD
View
B+
Retailer 17
-
HK$26,153 HKD
View
Retailer 18
-
HK$26,757 HKD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
HK$28,795 HKD
View
B+
Retailer 20
-
HK$29,022 HKD
View
B+
Retailer 21
-
HK$30,456 HKD
View
Retailer 22
-
HK$41,554 HKD
View
Price last confirmed 10 days ago
B
Retailer 23
-
HK$41,734 HKD
View
Most Expensive
B
NZ Jewellers
825c2c48-2507-4220-9faf-f08f54ee642f · Nov 5
HK$43,474 HKD
$5,547 USD
View
23 more retailers have this diamond
Prices start from HK$18,857 HKDSave up to HK$24,617 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$18,857 HKD