good day. This Q is coming from my recent discussion with a friend from Russia who is in jewellery biz there. I have asked her abt pricing of getting scrap gold in Russia to compare with UK. She advised that making your own gold alloy will be cheaper. then she told that in Russia ( and I did not know that) jewellers easily can buy mix of metals presorted for different colours and carats. I always knew you have to take parts of metals as per formula and mix , but now I see that I can buy already mixed parts . question can I buy same ready done mixes here in UK? (not that I need but out of curiosity asking.;-) this is website of Russian online supplier for example. they have eng version I think. https://www.ruta.ru/products/metalli_i_splavi/