Bead size is the one choice you can't fix later by changing colors. This page compares 6, 8, 10, 12 and 14 mm beads on look, weight, bead count and price, with a rule for each wrist size, so you can settle the size before you place a single stone.
Choose 8 mm if you're unsure: it suits every wrist from 14 to 20 cm and shows a stone's color. Choose 6 mm for wrists of 14 to 15 cm, for stacking, or for detailed patterns. Choose 10 mm for wrists of 17 cm and up when the bracelet is worn on its own, and 12 or 14 mm only for a deliberately bold strand on a wrist of 18 cm or more. Larger beads cost more each but you need fewer, so 6 mm bracelets still cost the most.
How do 6, 8, 10, 12 and 14 mm beads compare?
On an 18 cm wrist the BVDIY studio gives 32 beads at 6 mm, 24 at 8 mm, 20 at 10 mm, 18 at 12 mm and 16 at 14 mm. The bead count is only one of the things that changes:
| 6 mm | 8 mm | 10 mm | 12 mm | 14 mm | |
|---|---|---|---|---|---|
| Beads, 16 cm wrist | 29 | 22 | 18 | 16 | 14 |
| Beads, 18 cm wrist | 32 | 24 | 20 | 18 | 16 |
| Approx. weight, quartz strand, 18 cm wrist | 10 g | 17 g | 28 g | 43 g | 61 g |
| Height off the skin | 6 mm, slides under a cuff | 8 mm, sits just proud of a sleeve | 10 mm, catches on sleeves and desk edges | 12 mm, stands well clear of a cuff | 14 mm, the tallest; best with short or loose sleeves |
| Look | Fine, close to a chain | The classic beaded bracelet | Chunky; each stone reads on its own | Bold; a row of large stones | The boldest; close to a statement piece |
| Best for | Small wrists, stacks, patterns, wearing next to a watch | First bracelets, gifts, most wrists | Wrists of 17 cm and up, a single bracelet, patterned stones | Wrists of 18 cm and up, worn alone | Wrists of 18 cm and up, when size is the point |
The weights are calculated from quartz's density of about 2.65 g/cm³ and ignore the drill holes, so treat them as close estimates. Hematite is about twice as dense as quartz, so a hematite strand weighs roughly double. Going from 6 to 10 mm makes a bracelet nearly three times heavier: each bead has almost five times the volume, and you need 20 beads instead of 32. A 14 mm strand weighs about six times as much as a 6 mm one.
Which bead size fits which wrist size?
Bead size should scale with the wrist. These rules cover every size the studio makes:
- 14 to 15 cm: 6 or 8 mm. At 10 mm a 14 cm wrist gets only 16 beads, and 10 mm starts to look chunky on wrists under 16 cm.
- 16 to 17 cm: 6, 8 or 10 mm. Start at 8 mm; go to 6 mm if you'll stack it, 10 mm if it will be the only thing on that arm.
- 18 to 20 cm: 8 or 10 mm, or 12 or 14 mm for a bold look. A lone 6 mm strand on a 20 cm wrist can look thin, though it works well as one of several in a stack.
The wrist size you enter is your actual measurement, rounded up to the next whole centimeter. If you haven't measured yet, the guide to measuring your wrist takes two minutes.
Does bead size change the price of a custom bracelet?
Yes, and in the direction that surprises people: the smallest beads make the most expensive bracelet. 6 and 8 mm beads share the listed price and each larger size costs 15% more per bead, but a smaller size needs many more beads to go around the wrist. Here is the same all-Amethyst bracelet for an 18 cm wrist at each size, on the $12.99 stretch base:
- 6 mm: 32 Amethyst at $2.20 = $70.40, total $83.39.
- 8 mm: 24 Amethyst = $52.80, total $65.79.
- 10 mm: 20 Amethyst at $2.53 = $50.60, total $63.59.
- 12 mm: 18 Amethyst at $2.91 = $52.38, total $65.37.
- 14 mm: 16 Amethyst at $3.35 = $53.60, total $66.59.
The gap grows with the price of the stone, because every extra bead is another full bead price. With one of the $1.40 stones such as Sodalite or Red Jasper, going from 10 to 6 mm adds little; with Rutilated Quartz at $6.20, the extra twelve beads add a lot. The exact counts for every wrist and size are in the bead count chart.
How does bead size change the patterns you can make?
Smaller beads give you more positions, and more positions give you more room for pattern. At 6 mm an 18 cm wrist has 32 positions, enough for a gradient through three or four stones or a long repeat that still shows twice around the wrist. At 10 mm the same wrist has 20, which suits one stone, a simple alternation, or a short repeat such as four of one stone and one accent.
Larger beads do more for patterned stones. The blue flash in Labradorite, the silky band in Tiger's Eye and the gold needles in Rutilated Quartz all show better at 8 or 10 mm, where there's more surface to catch the light. Plain, even colors such as Rose Quartz or Sodalite look good at any size.
The studio uses one bead size per piece, so a larger focal bead in the middle isn't possible. To make one bead stand out, put a contrasting stone at the front: a single Garnet in a strand of Clear Quartz is visible at any size.
What bead size suits a man's bracelet or a gift?
For a man's bracelet, 8 or 10 mm. Ten millimeters suits wrists of 17 cm and up and looks at home next to a rolled sleeve; 8 mm is the safer pick for a smaller wrist or someone who rarely wears jewelry. The men's bracelet guide covers stones and colors.
For a gift where you don't know the wearer's taste, 8 mm. Someone who wears fine, layered jewelry will probably prefer 6 mm; someone who wears one bold piece at a time can carry 10 mm. When you can't tell, 8 mm is the size least likely to look wrong.
Which size works with a watch or a stack?
Six millimeters is the easiest size to wear on the same wrist as a watch or in a stack of three or more. A 6 mm strand sits lower than most watch cases, so it doesn't push the watch around or knock against it as much as larger beads do. In a stack, mixing sizes reads better than three bracelets of the same size: one 10 mm with two 6 mm, for example. The guide to wearing a bracelet with a watch covers placement.
When should you decide on bead size in the studio?
Pick the size before you start placing beads, since the number of positions changes with it. Switching from 8 to 6 mm on an 18 cm wrist turns 24 positions into 32, and a pattern planned for 24 won't fit 32 without rework. Designing and previewing are free, so you can try each size with your stones and compare before you order.
Sources: Density of quartz and hematite: Mindat mineral database.