update the glasses say "for viewing ChromaDepth 3D images" www.3dglassesonline.com

just looked at this thru both regular 3-d glasses (didn't work well) then some 3-d glasses we just got at a glow in the dark black light putt putt golf place, they aren't blue and red like the usual but clear, and the diamond REALLY stands out with them, try it out if you can find em.