I have brought a long sleeve cashmere at Burberry years ago at around HK$ 1,800.00 (after 50% discount) during sale. The price for a long sleeve cashmere at Yue Hwa is around HK$ 2,000.00 during sale.
The price for Burberry Cashmere背心 should be cheaper. The sale period of Burberry is around late Dec to late Jan.