The holes in these beads should be able to accommodate up to 2mm cording.
Purple Turquoise Howlite Stone Gemstone Round Loose Beads 4mm 6mm 8mm 10mm 12mm 14mm, Magnesite Turquoise Jewelry Necklace Bracelet 15 Strand · NY6 Design
8mm Turquoise Dyed Veined Howlite Smooth Finish Round/Ball Shape Beads with 2.5mm Holes - 7.75 Strand (Approx. 26 Beads) - LARGE HOLE BEADS
Turquoise Howlite Barrel Gemstone Beads 8mm (GS4170) - Happy Mango Beads
1 Strand of Semiprecious Gemstone Large Nugget Beads - Dark
8mm African Turquoise Stone Round Strand – Beads, Inc.
Blue Howlite Turquoise Skull Beads 6x8mm 8x10mm 10x12mm 18x20mm 15.5 Strand
8mm African Turquoise Stone Round Strand – Beads, Inc.
8mm Turquoise Dyed Veined Howlite Smooth Finish Round/Ball Shape Beads with 2.5mm Holes - 7.75 Strand (Approx. 26 Beads) - LARGE HOLE BEADS
153pcs Howlite Beads 8mm Dyed Turquoise Howlite Beads Gemstone Energy Stone Round Loose Beads for Bracelet Necklace - AliExpress
Natural Peruvian ite Heishi Rondelle 6mm 7mm 8mm 10mm Beads Aqua – Intrinsic Trading
White Howlite Round 8mm - Lima Beads
Mix Colored Howlite Turquoise Round Loose Beads on a 15.5 Strand – AD Beads
6mm/8mm/10mm/12mm Blue howlite round beads – GemWholesales
Red Howlite Turquoise Smooth Round Beads Size 4mm 6mm 8mm 10mm 12mm 15 – CRC Beads