I have a 14K,white gold, opal ring with 12 blue sapphires around the opal. How much is this worth? ?

For a ring sized at 8, the weight could be 8g. 14k gold ring setting is not too much expensive, about $300. While the opal, if you could provide detailed things like its size or color, would be better. The opal also encircled by the blue sapphires, so I think the big stone must be very expensive, about &1500. While the blue sapphires are smaller than the opal, right. Each sapphires would priced at $80. The price for the whole piece should also include costs of handcraft or something like that, about $200.00. You can take the piece to a professional jeweler for evaluation. All the above I said just want to tell you something to evaluate a piece of jewelry. Good Luck!