Rainbow Moonstone Sphere Value Guide

This polished spherical cabochon of natural rainbow moonstone is a modern treasure from India, crafted between 2010 and 2023. It is highly collectible for its intense adularescence, a visual phenomenon that echoes the ancient belief that these stones were formed from frozen lunar rays.

What affects the value of Rainbow Moonstone Sphere?

• The intensity and coverage of the blue or rainbow flash across the sphere's surface.
• The clarity of the moonstone, with fewer visible internal inclusions typically commanding higher prices.
• The precision of the spherical cut and the quality of the final surface polish.
• The overall size and weight of the piece, with specimens currently valued in the $125 to $140 range.

How to Identify Rainbow Moonstone Sphere?

• Look for the characteristic blue or multi-colored 'sheen' known as adularescence when the sphere is rotated under light.
• Verify the material is natural feldspar, which often contains internal fractures or 'centipedes' unique to moonstone.
• Check for a high-quality polish on the spherical surface that enhances the stone's natural optical properties.
• Confirm the origin as India, a primary source for high-grade rainbow moonstone specimens in the 21st century.

History of Rainbow Moonstone Sphere

Moonstone has been used in jewelry for millennia, including ancient Roman and Greek civilizations who believed the stone was formed from frozen rays of the moon. In the late 19th and early 20th centuries, it became a staple of Art Nouveau jewelry, championed by masters like René Lalique.