Rare Natural Smoky Quartz Gemstone by Francis J. Sperisen
Updated August 27, 2026
This auction ended on September 12, 2026.
See upcoming auctions from Ryan & Co Jewelers or current jewelry & watches auctions.
| Lot number | 0042 |
| Estimate | $7,680 - $9,600 |
| Opening bid | $640 |
| Category | Jewelry & Watches |
| Auction | Precious Gemstones & Luxury Fine Jewelry |
| Date | September 12, 2026 at 1:00 PM EDT |
| Auction house | Ryan & Co Jewelers |
| Location | Rockville, Maryland |
A deeply colored 15.85ct smoky quartz with exceptional faceting that produces a brilliant, high-contrast sparkle. High-contrast smoky quartz faceting on a 15-carat stone is highly uncommon. This
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