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Open Jump Ring – 0.5 × 3mm JGPT Gold · Jewelry Assembly Component
Open Jump Ring – 0.5 × 3mm JGPT Gold · Jewelry Assembly Component
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Product Description
This open jump ring is a standard jewelry assembly component designed for precise and lightweight connections in fine jewelry construction.
With a 0.5 mm wire thickness and a 3 mm reference size, it is suitable for very fine chains, delicate charms, and lightweight jewelry designs where minimal visual presence and subtle connections are essential.
Finished with JGPT gold plating, this component provides consistent color tone and surface quality for everyday jewelry making.
The open-ring structure allows for flexible manual assembly while maintaining compatibility within modular jewelry systems.
This size is commonly used in designs that require discreet, low-profile connectors, particularly in fine or detail-oriented pieces where visual weight must be kept to a minimum.
Specifications
Type: Open Jump Ring (unsoldered)
Wire Thickness: 0.5 mm
Outer Diameter (OD): 3 mm
Inner Diameter (ID): approx. 2.0 mm
Base Material: Brass
Finish: JGPT Gold
Quantity Options: 300 pcs
Inner diameter is calculated and may vary slightly due to cutting and forming processes.
Size Reference
This product is commonly referenced by its outer diameter (OD), which aligns with traditional sizing practices for small-format jump rings.
Inner diameter (ID) is provided for compatibility and fitting reference when selecting chains or components.
Recommended Uses
Very lightweight bracelets
Fine chain connections
Small charms and pendants with narrow holes
Modular jewelry systems requiring compact, low-profile connectors
Partager
FAQ
Will the gold color fade over time?
JGPT gold plating provides stable color consistency and surface quality.
Color longevity depends on wear frequency, friction, and environmental exposure.
Is the size measured by inner or outer diameter?
These jump rings are commonly referenced by outer diameter (OD), which aligns with traditional sizing practices.
Inner diameter (ID) is provided as a reference for compatibility when selecting chains or components.
Are these jump rings soldered?
No. These are open, unsoldered jump rings, designed for manual opening and closing during jewelry assembly.
Which size should I choose?
Selection depends on chain thickness, charm hole size, and required strength.
- Smaller sizes (e.g. 0.6 × 3 mm) are suitable for fine chains and subtle connections
- Medium sizes (e.g. 0.6 × 4 mm, 0.8 × 5 mm) offer a balance of appearance and strength
- Larger sizes (e.g. 1.0 × 6 mm) are recommended for heavier components and higher-load connections
Can these be used for bracelets?
Yes. All sizes are suitable for bracelets when selected according to chain weight and design load.
Larger wire thicknesses provide increased durability for frequently worn pieces.
What tools are recommended?
Two flat-nose or chain-nose pliers are recommended for clean opening and closing.
Avoid twisting the ring, as this may affect alignment.
Are these suitable for heavy or load-bearing designs?
Heavier designs require larger diameters and thicker wire.
For load-bearing or high-stress applications, selecting a thicker wire size is recommended.