GIA Certified 19.76 Carat Natural Color Change Sapphire | No Heat | Oval Brilliant Step Cut

This exceptional GIA Certified Natural Color Change Sapphire weighs an impressive 19.76 carats and displays a striking color transformation from brownish yellowish green in daylight or fluorescent light to orange-brown under incandescent lighting.

Expertly cut in an oval brilliant/step cut combination, this sapphire offers both brilliance and depth. Most notably, it has no indications of heating, making it a rare, untreated specimen — highly sought after by serious gem collectors and connoisseurs.

✨ Details:
• Species: Natural Corundum
• Variety: Natural Sapphire
• Color: Brownish Yellowish Green changing to Orange-Brown
• Weight: 19.76 carats
• Measurements: 18.52 x 15.07 x 8.02 mm
• Cut: Oval Brilliant Step Cut
• Transparency: Transparent
• Treatment: No Indications of Heating (Unheated)
• Certification: GIA Report #5181420072 (included)