Don't think you'd be short of CL options to match that beautiful dress. Could try any of the attached - Frescobaldi, Marilou, Python Privatita or VP Paillette. Might have trouble finding a Lady Gres in a complementary colour this season - I have a pair of Nude Satin LGs that would look beautiful but the colour was a limited edition and I don't know how easy it would be to get hold of
Or if the CLs aren't doing it for you, could try Zanotti?