Basic rule of thumb for fitting a cuff bracelet: Take out a tape measure or a piece of string or paper to measure with a ruler your wrist size. An average lady's wrist size is 6" around. We measure the inside circumference and the gap opening for you. Adding the inside measurement and the gap opening will give you the total measurement.
Turquoise Cuff Bracelets: Add the inside circumference plus gap opening to get the total circumference. You usually need a 1/4" to 1/2" extra for comfort fit. So, if the inside measurement of a bracelet is 5 1/4" to 5 1/2" plus a 1" gap opening this should fit a 6" wrist. Most women's turquoise bracelets have an inside measurement of 5" to 5 1/2" plus gap opening. Turquoise cuff bracelets that are adjustable are must easier to size and fit. Inlay bracelets are less giving and precise measurements of your wrist need to be taken if this is an non-adjustable bracelet. This will be the same for heavy silver bracelets or some channel bracelets that can not be adjusted.
Turquoise link bracelet: Most turquoise link bracelets are 7" to 7 1/2" for an average size ladies wrist of 6". This gives plenty of clearance, sway and movement around the wrist and for clasping the closure or clasp. This sizing should work the same for a turquoise bead bracelet, turquoise link bracelet and turquoise tennis bracelet.
Turquoise Bangle: Average size inside circumference of a turquoise bangle bracelet is 8". The easiest way to size your wrist and hand for a turquoise bangle is to cut a piece of paper the same size of the inside circumference and tape the ends to create a circle imitating a bangle. Sliding this over your hand you should be able to gauge if the turquoise bangle bracelet will fit. This should slide over easily but not too loosely to slide off when worn.