Black Aqua Seaglass 30" length necklace This Black Aqua Seaglass Collection has been a top seller. The aqua tones go from lighter to deeper in color and are just so impressive. The black matte beads are a matte finish along with the deeper aqua crystals, the aqua seaglass and matte gold metal beads are just stellar. The tiered pendant of antique bronze components and the crowning faceted crystal just finish it nicely.