The answer is yes. Many items may be larger or smaller than others of the same design. Antonio Pineda based many of his designs by how many stones he needs that are available within a size range. A good example of that is the Pineda Teardrop design. You can not tell from a photograph the size. You would want to ask for measurement or a photo with some reference such as a quarter. The other most important consideration is the condition of an item. A camera will not pick up damages or repairs if the item is turned, so it is unseen. Sometimes items can be lighter weight than another which can reflect the quality of the piece. The bracelets hinges could have worn pins inside that slip out of the barrels. It is important to have this fitted with a new pin or return it to the seller. Again this is invisible if photographed when pins are pushed back into their barrels. Also look for any loose stones that wiggle when touched. The most common problem is nicks, scratches, chips and flea bites on stones. Some may not show in a photo and can be an upsetting surprise in your hands when delivered. If the condition is stated as excellent vintage condition, ask questions as to what that means exactly. The best advice for any collector is to try to buy from a seller that offers returns.