AURUNA® 570 is an alkaline-cyanide alloy electrolyte for depositing green-yellow gold coatings. The gold-silver alloy has a fineness of approx. 18 carats. The coatings are gold-saving, they are bright even as thick layers. For thin layers, a variant with a low gold content is available (AURUNA® 570 LC).

What does 525 Stamp mean on jewelry?

A 525 stamp indicates that the metal (or some of the metal used) in the stamped piece is 14 karat, or that is has 525 parts gold per 1000 total parts or 52.5% gold content in the metal.

What does 570 mean?

According to the Internal Revenue Service Pocket Guide definition, code 570 on your transcript means there was Additional Liability Pending or Credit Hold. That is what IRS code 570 means on your transcript.

What’s the meaning of the Angel number 909?

1 909 Numerology. The changes will ensure that things turn out for the best and that they are needed to ensure we end up on the right path. 2 Angel Number 909 Meaning. Angel number 909 combines the magnified energies of 9, as it appears twice, with the vibrations of 0. 3 Biblical Meaning of 909 Angel Number. 4 Summary. …

What does a 925 sterling silver stamp mean?

These stamps stand for sterling silver. This means the piece of jewelry should be 92.5% pure silver mixed with another metal, usually copper. Silver on its own is very soft and needs another metal added to make solid jewelry. A common question that I get is “ I have a gold ring stamped 925, what does that mean?”

What do the numbers on the back of jewelry mean?

What do those barely discernible numbers inside a ring or on the back of a charm mean? The value of jewelry made from precious metals is determined by the purity of the gold, silver, or platinum it contains. The number found on jewelry is a karat hallmark and tells you how much of a metal is in that piece.

What does the number 900 mean on silver?

A “900” stamp on silver tells you that it is 9 parts pure silver and 1 part other metals. Platinum is more rare and more expensive than gold. “Plat” or “950 Plat” is nearly pure platinum. “IridPlat” is 90 percent platinum mixed with 10 percent other metals.