Rare Natural Bi-Color Tourmaline Cabochon
Updated August 27, 2026
This auction ended on September 12, 2026.
See upcoming auctions from Ryan & Co Jewelers.
| Lot number | 0073 |
| Estimate | $3,360 - $4,200 |
| Opening bid | $280 |
| Auction | Precious Gemstones & Luxury Fine Jewelry |
| Date | September 12, 2026 at 1:00 PM EDT |
| Auction house | Ryan & Co Jewelers |
| Location | Rockville, Maryland |
A distinct 1.31ct cabochon-cut tourmaline clearly exhibiting two distinct, natural color zones in one continuous stone. Distinctly separated dual color zones in a single continuous cabochon are an
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