It looks a bit like red moss agate..... https://stoneworkcabochons.com/products/copy-of-amethyst-sage-agate-cabochon
It's not a mark it's a factory defect.
Looks like it was cast,air bubbles on all surfaces.
Doesn't look like amazonite.
They are rhodolite garnets from the Cowee Valley North Carolina area.
What stones do there look like? [ATTACH]
Red tourmaline and topaz..............
The bullseye is the "pad" that gives a little holding power to the clips instead of a flat polished "pad".
Post a photo of the ring,if it looks anything like the bracelet it was probably made by a beginner/hobbyist. Most of the metal is covered with...
The date it was first used is in the link I posted.
It is Stuller...... https://trademarks.justia.com/owners/stuller-inc-2452774/
[ATTACH] Here is a photo of my canoe cup.
Test it....put a very small drop of water on a flat surface and see what happens.
How do you know that it is Natural? Have you tested it and it looks like it was tumbled. Price for 1/2 pound........
The bottom photo looks like a Swedish kuksa cup.
Sizing guide for bangle bracelets.... https://www.duelonjewel.com/pages/sizing-guide-for-bangles-and-bangle-bracelets
A number of modern NA silversmiths now use commercially made stamps and the 925 mark.
Here is one ,they are calling it Southwestern..... https://stoneandfeatherdesigns.com/products/signed-dt-southwestern-sterling-bracelet
Looks like glue from the stand.
Looks like seashell.
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