Every diamond is millions of years old, so antique doesn't really apply.
Older cuts of diamonds retain their value if they have top colour and top clarity. In this sense, then, you can consider older cuts of diamonds as antique -- more than 100 years of age in order to qualify for the term.
Every diamond, regardless of its cut, is valued by its clarity, colour, carat weight and cut.
Antique is worth more money.
Yes!
There are many places to sell diamonds. Online there are sites that can be used such as WP Diamonds, Sell My Diamonds and Cash for Diamonds. Local antique dealers may offer cash for diamonds, if this is preferred, rather than sending them in the post.
by weight diamonds
Antiques by definition ARE old.
By weight, diamonds are worth more because they are much more rare than gold.
I would suggest Andrew & Peter Fabrikant Fine Diamonds. They buy all sorts of antique jewelry, watch, gold and diamonds!
The best way to find out how much your antique crystal decanter set is worth, is by taking it to your nearest local antique dealer. They should be able to tell you how much it is worth and other information about the set.
Diamonds made in the laboratory are indeed diamonds. As gemstones, they are worth less than natural diamonds, given that all characteristics are equal: carat weight, colour, clarity and cut.
not much
yes
£4500 pence