Dought & clear,- Is there any riba involved in selling pure gold for mixed gold?.

Is it permissible for me to exchange a diamond ring for gold directly
with the trader? Please note that the ring is made of white gold set
with a diamond. If that is not permissible, I hopethat you can explain
the correct way to exchangethis ring for gold.
Praise be to Allah.
It is not permissible to sell gold for gold unless two conditions are
met: the exchange should take place in the same meeting in which the
agreement was reached,i.e., hand to hand; and they should be equal in
weight, because of the report narrated by Abu Sa'eed al-Khudri (may
Allah be pleased with him) who said: "Gold for gold, silver for
silver, likefor like, hand to hand. Whoever gives more or asks for
more has engaged in riba, and thetaker and the giver are the same."
Narrated by Muslim, 2971.
So it is not permissible tosell gold for gold of different amounts or
deferred payment; no differentiation is made between white gold or
other kinds of gold, because what is meant by white gold is nothing
more than gold to whichsome platinum has been added to make it white.
In fact it is still gold, but it is mixed with something else that did
not change it from beinggold. This has been explained previously in
the answer to question no. 68039
An-Nawawi (may Allah have mercy on him) said concerning the words
ofthe Prophet (blessings and peace of Allah be upon him), "Do not sell
gold for gold or silver for silver unless it is same for same":
The scholars said: This includes all kinds of goldand silver, both
high andlow quality, sound and broken, jewellery and ingots, and so
on, whether it is pure or mixed with something else. There is
scholarly consensus on all of that.
End quote from Sharh Muslim.
Secondly:
The correct way to do this transaction is to sell the ring for cash,
then buy whatever you want of gold and other things with the cash.
And Allah knows best.