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Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1568153979

Certificate GIA 1568153979

Diamond specifications and retailer prices

From HK$10,960 HKD
As of November 6, 2026
Save HK$16,370 HKD (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$27,330 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1568153979. Listed at 9 retailers as of November 4, 2026, with prices from HK$10,960 to HK$27,330, a HK$16,370 spread on the same certified stone. MOH London lists it at HK$27,330. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1568153979
Dimensions6.38 × 6.42 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Etch Channel, Needle
Top View
6.38 mm6.42 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568153979
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

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$27,330 HKD|Low: HK$10,960 HKD|High: HK$27,698 HKD|Avg: HK$17,916 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3HK$10,960 HKD
Retailer 4HK$13,886 HKD
Retailer 2HK$14,098 HKD
Retailer 5HK$15,887 HKD
Retailer 6HK$18,679 HKD
Retailer 7HK$19,087 HKD
MOH LondonHK$27,330 HKD

29 data points across 7 retailers

9 retailersHK$10,960 HKD to HK$27,330 HKD

A
Cheapest Retailer
-
HK$10,960 HKD
A
Retailer 2
-
HK$13,886 HKD
View
B+
Retailer 3
-
HK$14,098 HKD
View
B+
Retailer 4
-
HK$15,887 HKD
View
B+
Retailer 5
-
HK$15,926 HKD
View
B+
Retailer 6
-
HK$18,679 HKD
View
B
Retailer 7
-
HK$19,087 HKD
View
Retailer 8
-
HK$19,284 HKD
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
5F94434A1 · Nov 4
HK$27,330 HKD
£2,743 GBP
View
8 more retailers have this diamond
Prices start from HK$10,960 HKDSave up to HK$16,370 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$10,960 HKD