It stands for J & C Ferrara jewelry co.
That sounds like a hallmark stamp telling who made it.
A "YA" stamp on 10k gold pendant jewelry typically indicates the manufacturer or designer of the piece. In this context, "YA" often stands for "Young America," a brand known for producing quality gold jewelry. The stamp assures buyers of the item's authenticity and compliance with the specified gold purity, which in this case is 10 karats. Always verify the brand's reputation and quality when purchasing jewelry.
It means its 14 Karat Gold.
14 carat gold
62.5 % gold
Gold electroplate. Not gold.
gold
It means it's 41.7% pure or 10K gold
The Stamp YAG Means Gold Coated Silver
The stamp "14k" indicates that the jewelry is made of 14 karat gold, which means it is approximately 58.3% pure gold. The "zw" may be a maker's mark or some other identifier related to the manufacturer of the jewelry.
Palladium
silver