Labradorite topaz and pearl Sterling necklace

Stunning solid 925 sterling silver labradorite cabochon necklace set in the center of this gorgeous handcrafted setting in between a beautiful natural light blue fresh water pearl and a natural montana blue topaz. Seriously a enchanting peice of jewlery. The labradorite has amazing blue and green flash at every angle. Looks like a Aurora borealis sky and reminds me of mermaid scales! Marked sterling 925 on the back with a small makers mark I believe says DY but I'm unsure as I cant read how tiny