Etincelle is like a metallic finish. Cobalt is very similar to aquamarine, but a little more royal blue hue "Cobalt" color N° 2509 (Paillettes 4MM, 5MM) SOLD BY THE STRAND. Approximately 1000 sequins on each strand Made in France by Langlois-Martin. https://www.pailletteslangloismartin.fr/en/the-company/