9ct gold ruby gemstone pendant and chain

9ct gold ruby gemstone pendant and chain. The item is in very good used conditions with no faults, the ruby has 3very small diamonds on the top and bottom and the same on each side, very difficult to show in photo, both peices of the metal is fully stamped with gold hallmark, the chain is 22inches long and the pendant is 1 inch. The chain is 9.78 grams in weight, the total weight is 12.15 grams, see photo, comes with original authenticity certificate.