Identifying Your Colorful Diamond & Gold Earring - RLL Marking

Question
i have what appears to be daimond very colorful the setting is gold it has breather in setting and is marked with RLL the second L sit  ontop of the firt all three letters are underlined thank you

Answer
Hi Chuck, the closest my research came up with is a certain Richard Llewellyn B Rathbone, a silver smith from London. His stamp has an R, then an L with a smaller uppercase L perched on it. However, the logo also has another R. It can be quite difficult to determine manufacturer or origin at times, just from a logo alone, especially if the piece was made overseas.

Hope this helps.