只要批量生产的,就都不保值。和买艺术品一个道理。
比方说你十年前买的Omega,当时花了$2000,现在同款MSRP$3700,看似保值,但是你的旧货卖不出这个价的。所以很有钱的话,就买独一无二的才能保值。The Top 3 Luxury Jewelry Brands(http://www.luxist.com/2008/02/09/the-top-10-jewelry-brands-as-ranked-by-wealthy-consumers/)会有独一无二的.还有就是要了解designer的情况, if his/her work is sought after. How old is he/she etc. Their age can make a big difference.