ASSET: Graygem of Gargath
CAMPAIGN WORLD: Dragonlance (Krynn)
Artifact, associated with Reorx, Gargath.

APPEARANCE
- Description: A gem that never looks the same to two people: so beautiful it is ugly, so large it is small, so shiny it is dull, weightless yet heavy in the hand.
- Size and scale: Ever-changing size
- Materials: Unknown, shifting
- Colors: Shifting grey
- Glow and magical effects: Constantly changes appearance; radiates wild chaos magic

LORE (context only, do not show as text)
- Lore and powers: Created by Reorx, it accidentally trapped Chaos; its wild magic transformed creatures as it passed over Krynn.

STYLE: cinematic high fantasy, photorealistic, detailed prop design
NEGATIVE PROMPT: modern objects, plastic, text, watermark, logo, blurry

Keep the shape, materials, colors and details of the Graygem of Gargath exactly consistent in every shot.