Tourmaline Smooth Tumble Beads, 8x13 mm To 19.5x30 mm, Tourmaline Jewelry Making Beads, 17 Inches Full Strand, Price Per Strand 8x8 The round approximation size of

The round approximation size of this bead is between 3 mm to 6

5x16 mm to 18x27

This Listing is for 1 Piece of this Gemstone Stone : Blue Chalcedony Size - 14

This gemstone is used to relieve pain of migraines

5x7 mm Shape - TumbleLength - 20 Inches Weight - 71 Carats Treatment - No Treatment100% natural & genuineMeasurements and weight are close approximations

Tourmaline Smooth Tumble Beads, 8x13 mm To 19.5x30 mm, Tourmaline Jewelry Making Beads, 17 Inches Full Strand, Price Per Strand 8x8 The round approximation size ofStone Tourmaline Size 8x13 mm To 19. 5x30 mm Shape TumbleWeight : 512 CaratsLength : 17 InchesTreatment No Treatment100% natural & genuineMeasurements and weight are close approximations.*Note: Color may vary due to characteristics of the natural stone.