No. The 925 is indicative of 92.5% silver.
The marking "750-E" on a white gold ring indicates that the ring is made of 18-karat gold, which contains 75% pure gold and 25% other metals, such as palladium or silver, that contribute to its white color. The "E" may refer to the specific alloy or manufacturer, but it is not universally defined. This marking signifies the quality and composition of the gold used in the piece.
Probably 18 karat gold/nickel alloy. White gold is gold mixed with nickel and looks silver.
.925 is a marking for silver, not gold. Therefore what you most likely have is gold plated over sterling silver. Gold is marked 9K, 10K, 14K, 18K etc.
925 Italy is a marking for sterling silver.
The marking "14kf4" on a white gold band indicates that the ring is made of 14-karat gold, which means it contains 58.3% pure gold mixed with other metals for durability and color. The "f4" may refer to a specific manufacturer's code or a design element, but it is not a standard industry marking. Overall, this stamp signifies both the quality of the gold and possibly the design or source of the ring.
A 525 stamp indicates that the metal in the stamped piece is 52.5 percent gold. This is the same thing as the marking 14K for 14 karat gold.
920 is 92.0% Gold or 22K Gold.
The marking "585F8" on a piece of white gold indicates the purity of the metal. The "585" signifies that the gold content is 58.5%, which is equivalent to 14 karats, meaning the piece is made of 14K white gold. The "F8" might refer to a specific manufacturer's code or a hallmark indicating the origin or quality of the piece.
2 conditions, 1st the marking, like "10K" means, if white or yellow, containing gold. 2nd, use nitric acid on it. If some effect take place, e.g. huing of the acid or the alloy, it means the cheaper components dissolved, so it is a white gold of the cheap kind. No marking and no effect - could be platinum
58.5% gold or 14 carat
yes
In the context of jewelry, "14KW" typically refers to 14 karat white gold. The "14K" indicates that the metal is composed of 58.3% pure gold, with the remaining 41.7% made up of other metals that give it strength and a white color, such as nickel or palladium. The "W" signifies that it is white gold, distinguishing it from yellow gold or other gold alloys. This marking is an assurance of the gold's quality and composition.