the markings on jewellery to prove its white gold
Yes
yes
A platinum ring would have more of a monetary value than white gold. Though this is a personal choice on which ring you get.
A guess: the white "gold" contains a considerable amount of silver
I assume you are asking this for one of two reasons. First, because you have a yellow gold ring that you would like to make into a white gold ring. The answer to that is, no, you really can't do that. Liquid gold is molten, meaning that it is heated to a high enough temperature that it melts. Dipping a ring into molten gold would make it melt, too. Maybe not completely melt down into a puddle, but you would certainly lose any detail in the ring's design. The second reason you might be asking is because you have a "white gold" ring that has a golden yellow core, like yellow gold that has been dipped into white gold. This, unfortunately, is merely a brass ring (the yellow part) that has been plated with a white metal, perhaps white gold, but more likely some kind of whitish silvery base metal.
.595 in a Gold ring is 14 Karat Gold (Can be White or Yellow Gold)
Markings on white gold are normally placed to indicate the level of purity of the gold. Different manufacturers use varied types of markings on their products.
Yes
Markings on the inside of a gold ring indicate many things. The number markings could tell the owner how much gold is actually in the ring. for example 14k means 14 karats. The letter could tell the owner if it is gold plating, or gold filling. Sometimes, these letters and numbers are a combination of ring size and the creators mark.
is the circle closed for equal to
The platinum ring can wear away at the white gold ring because platinum is a stronger metal than gold. Because white gold is plated with rhodium to look white, a platinum ring will wear away the plating of a white gold ring faster than usual, revealing a yellowish tint and requiring the white gold ring to be re-plated sooner and more frequently. Another thing to note is that though platinum is hypoallergenic, white gold often has nickel alloy in it, which can cause allergic reactions. Updated: I think even white gold against white gold can cause a problem. They wear away each other's rhodium even faster than usual. I would go with platinum for both -- it's more durable and it won't wear away because it's a stronger metal and doesn't scratch. (Any "scratches" aren't really scratches - they are more markings - and can be polished away.)
White gold
The symbols S51 on a 14k white gold ring illustrate the purity of the gold.
Yes can be white Gold hallmark in gold metal alloys Ring.
You can get a white gold engagement ring at many online and high street retailers. The biggest misconception about white gold is that it is primarily made of yellow gold.
yes
Yes can be white Gold hallmark in gold metal alloys Ring.