Each diamond is valued according to its cut, clarity, colour and carat weight. Then, you can do the math.
Currently 5000 rupees is worth 83.355 US dollars.
$130
A carat of diamonds is worth whatever someone will pay you for the carat.
82,000 usdollars
diamonds
2000
By weight, diamonds are worth more because they are much more rare than gold.
It's worth whatever someone will pay you for it.You can take it to a pawn shop, or a jeweler and ask. Man-made diamonds are less expensive than natural diamonds.
Your ring -- lacking any documentation as to its metal and details about the diamonds -- is worth whatever someone will pay you for it. A local jeweler can help you understand the facts about your bracelet, and you can pay a gemologist to evaluate the diamonds.
5 dollars
$1.00 USdollars =$3.50ringgit
Anything is 'worth' whatever someone will pay you for it. Miracle Diamonds, as below, is apparently a wholesaler of merchandise that includes diamonds. You can review their materials to determine what you want to purchase, and how much you will pay.