In my earlier blog post discussed the beginnings of this project. One of our learning assignments this past month was a half-round band with a faceted stone set in a tube.
The measurements in the band were off, because I melted my first two rings. I run too hot I guess.
I decided on a sapphire because of its hardness, and also because it was the only stone in my discount baggie that came even close to the 3.0 size. The stone was 3.1.
Our measurements for the task were 3.0 diameter round wire, tube with 1.0 wall thickness and stone of 3.0 diameter.
I sawed the ring shank after soldering, and used a ball burr to widen the gap.
I used couple of different setting tools, but I liked the burnisher and brass punch with hammer the most. The punch setting is really just a square piece of metal that is used with hammer to push the metal on top of the stone.
Notice that in tube setting the metal should not touch the facet edges, otherwise it doesn’t give the setting the rounded look.