Natural Sapphire Rough Value Guide
- Period
- Formed over millions of years
- Origin
- Sri Lanka
- Materials
- Corundum (Aluminum Oxide), various trace elements
- Category
- Natural sapphire
This natural sapphire rough represents the raw, unrefined state of corundum formed over millions of years in the alluvial deposits of Sri Lanka. These specimens are highly collectible for their connection to ancient history and their role as the starting point for world-class faceted gemstones.
What affects the value of Natural Sapphire Rough?
- The intensity and saturation of the blue hue significantly impact the $25-$35 price range.
- Clarity and the potential for a high-quality yield after cutting determine the specimen's desirability.
- The overall carat weight and physical dimensions of the raw stone.
- The presence of unique trace elements that contribute to the stone's specific color profile.
How to Identify Natural Sapphire Rough?
- Look for the characteristic hexagonal crystal structure typical of the corundum mineral family.
- Verify the high density and hardness, as natural sapphire ranks 9 on the Mohs scale.
- Examine the surface for natural growth lines and a waxy to vitreous luster inherent to Sri Lankan rough.
- Check for the presence of silk or needle-like inclusions visible under magnification that indicate natural formation.
History of Natural Sapphire Rough
Sapphires have been cherished for millennia, revered by ancient civilizations for their celestial blue hues and believed to bring wisdom and protection. These raw forms are how sapphires appear in their natural state, typically found in alluvial deposits or primary bedrock sources, and represent the starting point for all cut and polished gems.
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