Czech Fire Polish Glass Beads 4mm Round "Gemtones" Purple Sapphire Peridot Mix (100 Beads) Jablonex Czech 4mm Fire Polished Beads In color "Gemtones," Deep purples, blues and reds give the feel of real elegance. Sapphire, cobalt ab, peridot, ruby, amethysts and more. In Czech Fire Polished beads, the shape called "Round" is actually more of an oval. SIZE: 4mm long x 3.5mm wide. Quantity: 100 beads, which is approximately 15 inches of beads when strung.