Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1559567941

Certificate GIA 1559567941

Diamond specifications and retailer prices

From HK$15,188 HKD
As of November 6, 2026
22 retailers carry this diamond
Most expensive: HK$31,153 HKD at NZ Jewellers · As of October 11, 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 top-tier cut grade and certified by GIA 1559567941. Listed at 22 retailers as of November 6, 2026. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559567941
Dimensions6.34 × 6.38 × 3.94 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.34 mm6.38 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559567941
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.6°Culet: NDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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$31,153 HKD|Low: HK$12,466 HKD|High: HK$31,153 HKD|Avg: HK$16,225 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
October 26, 2026
Retailer 15HK$12,466 HKD
Retailer 13HK$12,474 HKD
Retailer 10HK$12,639 HKD
Retailer 6HK$12,772 HKD
Retailer 8HK$12,772 HKD
Retailer 16HK$13,101 HKD
Retailer 7HK$13,360 HKD
Retailer 12HK$13,407 HKD
Retailer 5HK$13,572 HKD
Retailer 9HK$14,733 HKD
Retailer 17HK$15,016 HKD
Retailer 2HK$15,643 HKD
Retailer 14HK$16,185 HKD
Retailer 4HK$16,530 HKD
Retailer 11HK$17,518 HKD
Retailer 18HK$20,350 HKD
Retailer 3HK$22,351 HKD
NZ JewellersHK$31,153 HKD

32 data points across 18 retailers

22 retailers

Retailer 1
-
HK$12,466 HKD
Price last confirmed 13 days ago
Retailer 2
-
HK$12,474 HKD
View
Price last confirmed 13 days ago
Retailer 3
-
HK$12,639 HKD
View
Price last confirmed 11 days ago
Retailer 4
-
HK$12,772 HKD
View
Price last confirmed 27 days ago
Retailer 5
-
HK$12,772 HKD
View
Price last confirmed 25 days ago
Retailer 6
-
HK$12,772 HKD
View
Price last confirmed 12 days ago
Retailer 7
-
HK$12,772 HKD
View
Price last confirmed 15 days ago
Retailer 8
-
HK$12,772 HKD
View
Price last confirmed 25 days ago
Retailer 9
-
HK$13,101 HKD
View
Price last confirmed 10 days ago
Retailer 10
-
HK$13,360 HKD
View
Price last confirmed 15 days ago
Retailer 11
-
HK$13,407 HKD
View
Price last confirmed 11 days ago
Retailer 12
-
HK$13,572 HKD
View
Price last confirmed 10 days ago
Retailer 13
-
HK$14,733 HKD
View
Price last confirmed 26 days ago
Retailer 14
-
HK$14,733 HKD
View
Price last confirmed 14 days ago
Retailer 15
-
HK$15,016 HKD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
HK$15,188 HKD
View
Retailer 17
-
HK$16,185 HKD
View
Price last confirmed 9 days ago
Retailer 18
-
HK$17,518 HKD
View
Price last confirmed 11 days ago
Retailer 19
-
HK$20,350 HKD
View
Price last confirmed 11 days ago
Retailer 20
-
HK$22,351 HKD
View
Price last confirmed 12 days ago
Retailer 21
-
HK$31,153 HKD
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
ac85094a-1a38-4c69-a7f7-313bfe985f19 · Oct 11
HK$31,153 HKD
$3,971 USD
View
Price last confirmed 26 days ago
21 more retailers have this diamond
Prices start from HK$15,188 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.

B+
1.00ct Round
HK$15,188 HKD