Bead counts, stringing, clasps and designs by shape, from first bracelet to production runs.
About 23 of 6 mm with a clasp, or about 29 for a 7 inch stretch bracelet with no clasp. For the same length, expect about 17 of 8 mm or 35 of 4 mm with a clasp, and about 22 of 8 mm on stretch. Use beads per inch to fine tune.
String faceted sapphire on flexible multi-strand beading cable sized to fit your bead holes, because facet edges can cut thread during wear. Use silk only for pearls and other smooth beads you want knotted between each bead. With cable and proper crimps you get strength, clean drape and dependable finishes for daily wear.
Gemstone notes for jewelry makers. Ask Anish to confirm the current strand, price and availability.
Plan about 66-70 of 6 mm beads or about 50-52 of 8 mm beads for an 18 inch necklace. The clasp and findings take about 1.5 inches. One 15 to 16 inch strand is usually enough for either size. String beads for the remaining length, then attach your clasp.
Use beads needed = beads per inch × (finished length − 1.5 in clasp). For 18 in, plan about 104 of 4 mm, 70 of 6 mm, 52 of 8 mm. IGS lists for 24 in fully beaded 2 mm 300, 3 mm 200, 4 mm 150, 6 mm 99, 8 mm 75. Apply the formula for other lengths.
Divide the ring inner circumference by bead outside diameter to get count. For US sizes, approximate counts: size 5 about 25 of 2 mm, 16 of 3 mm, or 12 of 4 mm; size 7 about 27, 18, or 14; size 9 about 29, 20, or 15; size 10 about 29, 20, or 16. See the full table.
Rectangles lay flattest, then pears, with arrowheads needing the most control. For face-up strands, keep a slight gap: a single knot between beads adds about 1 mm and usually stops flipping for rectangles and most pears. For larger arrows or tall pears, place a knot on both sides of each drop to increase separation.
Subtract 1.5 in for a clasp, then multiply the beaded run by beads per inch. For a 7.5 in clasped bracelet that is 6 in of beads: 4 mm about 38, 6 mm about 25, 8 mm about 19. For elastic, use the full length. Use 3 mm 8.3/in, 4 mm 6.25 to 6.3, 6 mm 4.2, 8 mm 3.13 to 3.2 to scale 6.5 and 8 in.
Expect flat tab-style rectangles and half-moons with holes set near the flat edge. Measure the drill-height setback from that edge. Pick a jump ring whose inner diameter exceeds that setback. Choose a pinch bail with a slim post that fits the hole and shoulders that clear the edge. Oval rings pass tight setbacks cleanly.
Choose hard stones in tiny sizes. Sapphire and ruby in 2 to 3 mm rondelles are top tier. Black spinel in 2 to 3 mm is a strong daily black. Quartz family beads in 3 to 4 mm work well. Avoid wafer-thin heishi and very soft stones. String on fine 49-strand beading cable or fine elastic that passes your holes cleanly.
Plan by bead height on the string. From 16 inch strands you get about 200 beads at 2 mm, 133 at 3 mm, 100 at 4 mm, 80 at 5 mm and 66 at 6 mm. Knotting adds about 1 mm per bead. Use the largest cord that can be doubled at the guru, a fine collapsible-eye needle, and a guru that accepts a doubled cord.