
The platinum used in platinum engagement rings is to a large extent more rare than gold and perhaps this is why it costs 4x as much as yellow gold and 2x as much as white gold. different gold, platinum is used in about its pure form in jewelry. Platinum’s purity is indicated by a 3 digit number which ought to be marked on the band. For example, If your band is marked “950 platinum”, the band is 95% clean platinum with alloys constituting 5% of the ring. Most platinum is mine in Russia and South Africa.

One of the slighter known facts about platinum is that it is hypo-a...
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