Romello Jewelry Design › Watermelon Crystal long necklace Image 1 of 1 Watermelon Crystal long necklace $20.00 Pink and white watermelon crystal on a long, opera style, 20in antiqued brass chain. 22in total length. Add To Cart Added! Pink and white watermelon crystal on a long, opera style, 20in antiqued brass chain. 22in total length.