This is a small niche, I wonder if this will indeed sell.
Please disregard above appraisal. What kind of comparison is that? You can't match "underwater" with "rare", it's like comparing oranges with airplanes.
Mid to high $$$ for this name. I can think of some commercial usage where underwater finds are auctioned.
rarefinds sold for $1000+ and that's my point of reference here.