You say you are "not a showy person", but want a ring made from a $20 St Gaudens... lol. I'd say you are a little showier than you might think.
If you do decide to use a $20 Saint, it would be good to use a coin that has been damaged as has been mentioned. Either by being soldered, cleaned, etc. And many dates are common - the highest mintage doesn't always mean most common. Look at the 1927-D's mintage. Anything from 1924-1928 from Philly is common.
You seem to be missing the part about living in reality here. My avatar coin is a fait accompli; it exists. I would not do that today, to any coin, but I'm not going to destroy it or deny it exists, which seems to be your position. And I'm sure as heck not going to condone doing it to another coin whose numbers are miniscule by comparison to any Modern issue. Especially not one arguably the most beautiful coin the US has ever minted. To believe you have the right to arbitrarily destroy history is a level of arrogance and self-centeredness which illustrates all that is wrong with our world.
I am completely living in reality. You are correct...the coin in your avatar exists and the ring the OP is talking about does not yet. However, you appear to be making the argument that creating such items is some horrible sin while at the same time you are displaying such an item as your avatar. Your avatar is your one chance to show something that interests you...it's the one image that accompanies all your posts. It stands to reason you must like the coin it displays...otherwise why would you display it? Proudly displaying one piece of defaced currency while at the same time denouncing someone for wanting to do the same thing is the definition of hypocrisy.
I believe we'll just have to agree to disagree about this. I freely admit I cannot understand the convolution of your reasoning and you're otherwise an admirable poster whose friendship I'd prefer to retain. I do not wish to continue arguing over positions we will not change. Friends put up with what they see as each other's faults; let us choose this to be such an occasion in that regard.
The OP wants to make a ring out of a coin. It's his choice. There's no law against it and I think it would make a nice piece of jewelry; though far too large for my fingers. Jewelers used to, and still do, make jewelry out of coins.
Wow that will be a beautiful ring what will you do with the center of the coin you punch out? Thanks, Jacob
No worries Dave. FWIW, I wouldn't make a ring out of a coin either. It's not my style. The OP is going to do it wither we like it or not. I'd rather him destroy a coin that is basically a glorified bullion piece than a collectible is all. No hard feelings.
Jacob, The center of the St. Gaudens will be used as partial payment to the maker of the ring. Or I can choose to keep enter the and pay for the ring in full.
I see why people would be opposed but it doesn't bother me at all. I think you are still retaining and displaying history with that ring just in an obviously different way. My one caveat is what's already been mentioned. Just buy a common date cleaned, altered, damaged, imperfect in some way saint and when people ask about it give them a little lesson on the history of US Coins. If one person learns about Saints and gets an interest I think it's been well worth it.
You might try this product, it works for many. It can be removed with acetone, so don't clean coins with it on https://www.amazon.com/Jewelry-Shield-Protective-Allergies-JWL-180-00/dp/B001OFV1T4