Studs have been a popular motif in clothing and accessories for a few years now. While a rhino horn is not strictly speaking the same kind of thing, it does look rather stud-like (speaking Valentino here, not sleazy bar dude) on this ring by Bibi van der Velden. It’s made of is made of sterling silver, 18ct yellow gold, brown diamonds and polki diamonds and sells for €3,070. If this interests you as a Christmas gift, take note that there is a 30 day delivery period.