Merelani is the region in Tanzania where tanzanite is mined. I spent an afternoon there after climbing Mt Kilimanjaro and found it fascinating. A rabbit warren of numerous small artisanal mines (as well as one large corporate mine). This pair is set in platinum on platinum Grape Studs and total 2.01 ct.
Gems are removable. See how the hook works in the second picture of Flat Black, here: https://www.disegnojewellery.ca/products/flat-black