I would recommend charging somewhere between $9 and $12.50 per hour. Somewhere towards the higher side ($11 to $12.50) I think would be fair if you have at least two to three years of jewelry making experience. I am thinking $10 to $11, if you would like me to narrow the labor rate down for you based on what you told me.
If the shop is an upscale shop then I would say $12 to $15 per hour would be fair for your labor with the number of years of experience being the determining factor as in the paragraph above. I am thinking $12 to $13 if the shop is upscale.
Keep in mind that you may get more work in the future provided that you do good work, in a reasonable amount of time, and you are pricing your labor reasonably.
I hope the price range that I am recommending is acceptable to both you and her.
Great Info Jim, I make sure to always read your Post. I price based on cost and time.
I just love people who come to my yard sale, first kind is "I can make that for less". At a Craft Sale, Many buy my Jewlelry for the patterns,(only to discover, there is more work and time, and expense than they figured on in the beginning.)
I am at last ready to just sell on line.
"Remember that when you leave this earth,you can take nothing you have received...but only what you have given; a full heart enriched by honest service,love,sacrific and courage.Saint Francis of Assisi