Seta 925 is the name of a company and the metals that made the necklace and ring. A marking of 925 is at least 92.5% sterling silver.
The "925" probably refers to the purity: 925/1000 gold.
The marking "DO CZ .925" on a necklace set typically means that the necklace is made of sterling silver (.925) and features cubic zirconia (CZ) stones. The initials "DO" could represent the designer or brand of the jewelry.
AU is the symbol for gold... 925 refers to the purity of that particular piece...
It may be the maker of the necklace. Like the trademark. Hope this helps.
92.5% sterling silver 7.5% copper or other metal
The JJT probably indicates the manufacturer. The 925 probably indicates Sterling Silver. The CZ probably means that any stones set in the necklace are Cubic Zirconia.
The 925 is a sterling silver mark. I would doubt if diamonds were set in this . They are most apt to be crystals or paste
Braided 22.2 karat gold ... i'm no expert
OTC stands for: OTC International Ltd.
PGDA- The Stock Symbol for Piercing Pagoda. The Necklace was made by and purchased at Piercing Pagoda. It's .925 silver- which means it's sterling silver. Worth about... oh... $50. Maybe.
That is high end sterling rare hard to find