proably 50-150
A silver bracelet stamped with 925 is typically sterling silver. Sterling silver has a current market value of US $17.19 per ounce.
It is Sterling Silver.
Nothing its plated
Silver stamped 926 indicates that the silver is 92.6% pure, which is commonly known as sterling silver. The value of sterling silver is typically determined by its weight and the current market price of silver. To calculate the value, you would need to weigh the silver item in grams and then multiply that weight by the current price per gram of silver.
1922 is by far the most common date for Peace silver dollars. As of 15 April 2013, one is worth about $19 for the silver.
August 1, 2009 The US Mint has not issued a quarter with an "M" stamped on it. Probably what you have is a quarter that someone has put their initial on or marked it for some reason. With such a mark it has no numismatic value but is worth $2.52 for the silver it contains.
2,000
You've got to be a bit more specific on how it is stamped wrong before we can assign a premium over silver value on the coin.
The hallmark 925 designates 92.5% silver in the total metal, not the gold. And worth can be determined upon the weight of the 925 silver neckless.
How much is it worth
The color is the main difference. Silver is made of silver or a base metal with an silver color added or baked on it it. Gold is made of gold that is 10K, 14K, or 18K or can be a gold filled metal. It can also be a base metal with an overlay added. In both cases the type of metal determines how much value the earring is worth.