Does anyone have an opinion on whether platinum "holds" milgrain and engraving better than 18K white gold? I have a relatively detailed engagement ring and am planning on upgrading my center stone in the coming months. The head of my setting is not removable, so I may need to have the ring completely recast depending on the size of my new stone. My ring is currently in 18K and in the 4 years I have had it the engraving on the band and the milgrain edges have worn down considerably. If I had it reset in platinum, would it hold up better? I don''t shower, clean, sleep, etc. in my rings. Thanks in advance for any help!