Description

4mm Czech AB Bicone Beads

Light doesn’t just bounce off these tiny crystals—it fractures into shifting colour bands that change as the viewer moves. The aurora borealis plating on these 4mm Czech AB bicone beads creates an iridescent film across clear glass, giving each bead a multi-tonal shimmer that shifts from rose-gold to pale lavender to silvery blue depending on the angle. Twenty beads arrive ready to string, each one uniform in size with surfaces cut into precise geometric planes that multiply the prism effect.

Twenty 4mm × 4mm double-cone bicone beads per pack
Clear Czech glass foundation with electro plated glass beads finish
1mm threading hole compatible with standard beading wire and .014-inch Soft Flex
Aurora borealis coating applied through vapour deposition for permanent adhesion
Precision-faceted geometry with symmetrical points on both cones
Consistent weight and balance for earring pairs

String these between 6mm round gemstones to add sparkle without bulk—the compact diameter makes them function as spacers that contribute colour rather than just create separation. In bridal hair pins, thread three onto headpin wire before adding a pearl cap, letting the rainbow light reflection beads catch movement as the wearer turns. They work particularly well in faceted crystal glass cluster earrings where you need multiple beads that won’t overpower delicate ear wires, or as accent beads along the edge of seed bead peyote stitch when transitioning from matte to glossy textures.

The electroplating bonds permanently to the glass substrate, so these won’t flake or rub off during handling or wear the way some coated beads can. Thread them onto .018-inch beading wire for necklaces where you need drape without stiffness, or use with nylon-coated flexible wire in bracelets that bend frequently around the wrist. At this diameter, twenty beads will span approximately 8 centimetres when strung touching edge-to-edge, though most designs benefit from spacing them out with complementary metal rounds or smooth glass to let each bicone stand out visually.