Ultimate Gemstone Collection – HDRP includes 80 realtime gemstones, with 42 faceted gems and 38 polished stones. Faceted gems feature fire, colour absorption, pleochroism, zoning, colour change, inclusions, caustics, refraction and sparkle. Polished stones feature procedural patterns and effects such as moonstone sheen, labradorite flash, pearl nacre, opal play-of-colour, cat's eye and star effects.