Answer:
In this case, in looking at the metal attributes below the description, it appears that rhodium has been used only on the prongs. JTV often uses tinted rhodium around stones to make them appear larger. Rhodium is a harder finish than sterling and may add a little durability also. While rhodium over sterling can also be white, as in much of the Bella Luce line, in this case, I think just the brown finish on the prongs are rhodium. I do not own this piece and am giving just my interpretation of the description.
Gender: Female
Age: 65 or over
Level of Expertise: Beginner