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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 1559494856

Certificate GIA 1559494856

Diamond specifications and retailer prices

From HK$10,442 HKD
As of November 6, 2026
Save HK$22,704 HKD (68%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$33,146 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1559494856. Listed at 20 retailers as of November 5, 2026, with prices from HK$10,442 to HK$33,146, a HK$22,704 spread on the same certified stone. NZ Jewellers lists it at HK$33,146. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1559494856
Dimensions6.18 × 6.24 × 3.98 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Needle, Indented Natural, Natural
Top View
6.18 mm6.24 mm1.00 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559494856
Side View
Table 59.0%Crown 38°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.1%

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 6
Current: HK$10,505 HKD|Low: HK$10,442 HKD|High: HK$24,100 HKD|Avg: HK$15,122 HKD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10HK$10,442 HKD
Retailer 1HK$10,505 HKD
Retailer 2HK$12,537 HKD
Retailer 7HK$12,725 HKD
Retailer 11HK$13,541 HKD
Retailer 4HK$14,576 HKD
Retailer 5HK$14,992 HKD
Retailer 3HK$15,133 HKD
Retailer 6HK$15,785 HKD
Retailer 8HK$17,848 HKD
Retailer 9HK$23,740 HKD

32 data points across 11 retailers

20 retailersHK$10,442 HKD to HK$33,146 HKD

A
Cheapest Retailer
-
HK$10,442 HKD
A
Retailer 2
-
HK$10,505 HKD
View
B+
Retailer 3
-
HK$12,380 HKD
View
B+
Retailer 4
-
HK$12,537 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$12,725 HKD
View
B+
Retailer 6
-
HK$13,541 HKD
View
B+
Retailer 7
-
HK$13,588 HKD
View
Retailer 8
-
HK$13,588 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$14,216 HKD
View
B+
Retailer 10
-
HK$14,576 HKD
View
B+
Retailer 11
-
HK$14,663 HKD
View
B+
Retailer 12
-
HK$14,804 HKD
View
B+
Retailer 13
-
HK$14,992 HKD
View
B+
Retailer 14
-
HK$15,133 HKD
View
B+
Retailer 15
-
HK$15,683 HKD
View
B+
Retailer 16
-
HK$15,785 HKD
View
B
Retailer 17
-
HK$17,848 HKD
View
B
Retailer 18
-
HK$20,241 HKD
View
B
Retailer 19
-
HK$23,740 HKD
View
Most Expensive
C
NZ Jewellers
487f54e0-6499-4d20-a69f-4a5bfdf0dac6 · Nov 5
HK$33,146 HKD
$4,225 USD
View
19 more retailers have this diamond
Prices start from HK$10,442 HKDSave up to HK$22,704 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