I am from India and what you have said is true. Jewelry made of gold, diamond are considered as great assets. But very very very few people buy diamonds separately. The value for the jewelry = value of the materials + value of the design. You cannot access the value of the design using any standard metrics. It's variable. Does this project address this problem? Of course there is no price standardisation but one cannot just chip off the diamonds and melt the gold. You would lose a good value!!!