how to go from shangrila hotel to suibei jewellery centre in Shenzhen?

Well, you must refer to the Shuibei Jewellery Market.
By bus: you may walk to Jinghu Hotel bus stop to take bus no. 1 to get off at Cuibei Primary School. Then walk to the market.

By subway: walk from your hotel to Luohu Station to take Luohu line to Laojie, where transfer to Longgang line to get off at Tianbei Station. Get out from exit A and you can walk there directly then.