"It means Gold Rolled Plate, it is not solid gold but plated in 10k." thats not correct
When you have a piece of 10k jewelry that has 'OTC' on it, it is the name of the company. OTC has been a leader in the fine jewelry industry for many years.
10K yes it is gold. IBG= Ira B Goodman jewelry maker (makers mark)
NBK is the manufacturers branding on the jewelry. 10k is the quality of the gold.
Real jewelry
416 is 10k
This means 10k gold.
HMS is a company that specializes in 18k, 14k, 10k and platinum jewelry
10k lyg 11 7.2 grms
If jewelry is marked 10k only, It means it's 10karet gold. If it say 10k ge or hge, it means it is gold plated.
"10k China" typically refers to a piece of jewelry made in China that is stamped with "10k," which indicates that the item is made of 10 karat gold. The "China" stamp simply indicates the country of origin where the jewelry was manufactured.
Made by world gold and diamonds jewelry manf.