The mark "730" on gold indicates that the metal is 73.0% pure, or 18 karats (since 24 karats is pure gold). It signifies that out of 1000 parts, 730 are gold, while the remaining 270 parts consist of other metals, often used to enhance durability and alter color. This mark is commonly found on gold jewelry and items, reflecting a balance between purity and practicality.
The Maker's Mark
That's a purity mark, indicating that the gold is 99.5% pure.
It depends on the mint mark, if any, between the eagle's claw and the "1/2" in the denomination. Retail prices for moderately worn 1852 quarter eagles are: No mint mark - about $150 "O" mint mark - $170 "C" mint mark - $730 "D" mint mark - $940
730
730 found etched on any jewelry means that the piece is 73 percent silver. The other percent is most likely copper.
The 730 hallmark on gold jewelry indicates a gold content of 73%, so the piece is just shy of the 75% gold content that signifies 18 karat.
0.011
The Maker's Mark
is AJ a gold mark
This means 10k gold.
It means that its only gold plated
GA is proablbly the makers mark or Sponsors mark as its known.
That's a purity mark, indicating that the gold is 99.5% pure.
The mark Decesare is an Italian Designer of fine gold jewelry.
g-23
That's a purity mark, indicating that the gold is 99.5% pure.
it means it is real gold or silver