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Ruby & Sapphire · Microfaceted · Rondelle · 3mm

SKU 5ReRubSap03MF016

138 in stock

Note: These measure between 2.9 and 3mm in diameter.

Dimensions: approximately 2x3mm.

Strand Length: approx. 15.5 inches.

100% natural ruby & sapphire beads!

Ruby and Sapphire are both forms of corundum, which is a type of aluminum oxide. Corundum has a specific gravity around 4 g/cm3, meaning that is is approximately 50% heavier than quartz.

Ruby is the birthstone of July, and Sapphire is the birthstone of September.

View the Sapphire Beads Full Collection.

Bead Count

Count of beads on a strand:

  • 1x2mm= 360 Beads
  • 2x3mm = 180 Beads
  • 3x4mm = 120 Beads
Note: These are general guidelines. The actually count may be greater or slightly less than stated.
Hole Size

Bead hole size ranges:

  • 1x2mm = 0.3mm to 0.5mm
  • 2x3mm = 0.3mm to 0.5mm
  • 3x4mm = 0.5mm to 0.8mm
Note: These are general guidelines. The actually hole size may be slightly larger or smaller than stated.

For beads 4mm and smaller, it is recommended to start with stringing wires no larger than .013inch / .33mm. This will ensure a proper fit and in most cases allow for feeding of the wire tip back through the beads for a clean finish.

Elastic cords can be used with beads 4mm and larger, but it will not fit through most beads smaller than 4mm. It's recommended to use 0.5mm elastic cord.

These recommendations are intended to help guide you for a successful project. With time and experience you'll discover what works best for your designs.

Customer Reviews

Based on 3 reviews

Love these!


Beautiful tiny beads

Ruby & Sapphire Microfaceted

Received securely packaged and in quick time. Beautiful color saturation and cut . Beads nicely drilled.Great purchase