Vintage 20mm (.8") tall eight sided rhinestone. Clear glass with a dark tint to it. Many facets. Foiled pointy back. Packages said "Black Diamond" "Octagon" "Czechoslovakia". These are from the 1950s. Perfect, never seen the light of day condition.
This is from our latest treasure hunt! From a warehouse of cabochons and beads! All were in original packaging. All are 50 - 90 years old.
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