Hi Shannon thanks for writing in with your intriguing jewelry story!
Due to your families connections with Aramco, I thought you might be interested in checking out the Aramco Expat Website.
The only piece of info, I can add to help solve this jewelry puzzle, is that the marks are arabic, which makes sense seeing the jewelry was originally purchased in Saudi Arabia. The first box in the image above contains the number 12. The second shield contains an Arabic letter of the alphabet.
Happy Hunting! Yvonne Hammouda-Eyre Stay up to date with all the latest Antique, Premier and Pearl Jewelry News, and subscribe to our newsletter....