What about some jewellery made with pearls? Top end freshwaters like the Freshadama line by Pearl Paradise don't have to break the bank and they have a large range of designs with different size pearls at lots of price points. The pearls are gorgeous too.
Thanks for chiming in Snowdrop13
possibly some drop pearl earrings . . . . I have never seen my future MIL (who I love) in pearls . . . she likes diamonds and tanzanites
if I could I would get her: Elsa Peretti Mesh bracelet or earrings
For mother of the groom present, we made a picture wall hanging on shutterfly with pics of her and the family, her and FIL and her and DH during their dance.
I would opt for pearls too, not a strand, however, perhaps a pair of earrings, a ring or a pendant - my choice would be a pendant in two different types of pearls and/or colour.
There is a pearl to suit all budget, from the very affordable Cultured Freshwater Pearls to Tahitians and South Seas at the other end of the scale.