It depends what they have in stock on the day, I think. I absolutely love the links of london shop in bicester - I live up north but make the 3 hour trip to bicester specifically to visit this and the marni shop they have there.
I have always bought things from the links of london bicester shop when I go. Once, I got this gorgeous necklace which was £600 retail and I bought it for £100 from bicester as it was slightly tarnished. They have a 'seconds/ one off' section on the left of the shop and you can get some real bargains (just always ask why it is in that section, normally it is due to tarnish)
I took it home and stuck in it a bowl with tin foil, baking powder and hot water and voila, gorgeous 'like new' silver necklace!!