One of the largest seed bead selections in North America — Czech rocailles, Japanese Delicas, cuts, bugles, and color bundles in a deep range of sizes, colors, and finishes. Choose a type below to shop with full filters for size, color, and finish.
Popular Seed Beads
View allSeed Bead Size Guide
Seed beads use the aught system: the larger the aught number, the smaller the bead — an 11/0 is smaller than a 6/0. Sizes below are for Czech rocailles; diameters vary slightly by color and finish.
| Size | Diameter | Good for |
|---|---|---|
| 6/0 | 4.1 mm | Easy to handle — learning, crochet, larger-hole work |
| 8/0 | 2.9 mm | Popular all-purpose size |
| 10/0 | 2.3 mm | Everyday beadwork |
| 11/0 | 2.1 mm | The most common beadweaving size |
| 12/0 | 1.9 mm | Finer detail |
| 13/0 | 1.7 mm | Fine work; includes Charlottes and true cuts |
| 15/0 | 1.5 mm | Fine detail, edging, and accents |
Larger sizes (1/0–5/0) and micro sizes (16/0 and smaller) are also made. Micro beads are best worked with a fine needle and a beading tray. Japanese Delica cylinders come in 8/0, 10/0, 11/0, and 15/0 and are not interchangeable with Czech rounds at the same size.
Choosing Your Seed Beads
- Czech Rocaille (Preciosa) — Rounded shape with the widest color and finish range. A great all-purpose bead for embroidery, fringe, and flowing designs. Many colors are available strung on hanks.
- Japanese Delica (Miyuki) — Precision cylinder with a large hole and very uniform shape, ideal for loom and peyote patterns where every bead lines up.
- Antique Venetian — Original new-old-stock glass prized for historical reproduction and collecting. Sizing is approximate, so pre-sort before count-critical projects.
Delicas and Czech rounds are not interchangeable at the same aught size — they sit differently in the work, so swatch before substituting.
Seed Bead Resources
New to sizing or counts? See our Seed Bead Charts, or browse projects and tutorials on the blog.







