It is not necessary to wear nose ring or jewellery at the time of nikah. The use of jewellery etc is for the husband so that he does not start disliking her, hence it is allowed to wear ornament and adorn oneself maintaining the Shariah limit. The Shariah has not described any particular type for jewellery and adornment.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband