Gemstone Bicone Beads

Frequently asked questions

• What is a bicone bead?

  A bicone is a faceted bead shaped like two cones joined base-to-base, with the widest point (the equator) in the middle and tapered points at each end. The drill runs straight through the points, so beads sit tip-to-tip on the wire. Most bicones are machine-faceted with a regular pattern of diamond-shaped facets that catch light from the angled walls. The shape is calibrated, so beads in the same size match closely in profile, making them straightforward to use in patterned strands and spacer roles.
• What sizes does Dakota stock in bicones?

  Dakota's bicone stock concentrates on 8mm (about 25 active products) and 4mm (about 13 active products), with a small number of 6mm and 3mm options. The 4mm size is the workhorse for spacer roles, accent runs between larger focal beads, and detail in finer-gauge stringing. The 8mm size carries more visual weight and works as the primary bead in a strand or paired with rounds and rondelles of similar diameter. Sizes are nominal — measure if you're matching to a specific finding or pattern.
• What stones come in bicone cut at Dakota?

  Current bicone stock spans roughly 40 products across stones including moonstone, garnet, lapis, aquamarine, citrine, rose quartz, clear quartz, prehnite, amethyst, and carnelian. The cut shows up most often in transparent and translucent material — quartz family stones and feldspars — because the angled facets read brighter through light-passing stone. Opaque stones in bicone are less common in the current mix. Treatment varies by stone (heat, dye, irradiation, stabilization are all possible depending on material); treatment should be disclosed — ask before buying if it isn't specified.
• What jewelry uses bicone beads best?

  Bicones earn their place as accent and spacer beads in stringing work — the tapered points let them nest against rounds, rondelles, and bead caps without crowding. Designers use 4mm bicones as detail beads between larger focal stones, in earring drops where the faceted profile catches movement, and in delicate bracelets. 8mm bicones can carry a strand on their own or alternate with smooth rounds for textural contrast. They also work well with crystal bicones in mixed-material designs where the geometry matches across stone and glass components.
• Bicone vs faceted round — when to choose which?

  A faceted round keeps a roughly spherical silhouette with facets cut into the surface; a bicone is a geometric double-cone where the shape itself is the design. Bicones read more angular and architectural on the wire, with crisp points where each bead meets the next. Faceted rounds blend into a strand more softly and pair more neutrally with smooth beads. Choose bicone when you want defined geometry and sparkle from clear angles; choose faceted round when you want sparkle in a more traditional bead silhouette. Bicones also nest more tightly with bead caps.