There's nothing particularly unique about the finish on an Adelaide. Any decent alloy repairer should have a good match for the gloss black so it really depends on how damaged the rim is and the extent of physical repair needed prior to powdercoating, re-machining the face and lacquering.
^This.
@STUART31; kerbing an alloy is never a good feeling. As @Tallpaul has said, it shouldn’t be an issue for any good, reputable alloy wheel refurb company to repair the wheel so it’s indistinguishable from the other three, assuming it’s not damaged beyond repair.
Hopefully you won’t suffer any further kerbing or other alloy wheel damage in future. If you do, bear in mind with diamond cut alloys that there’s a limit to the number of times they can be refurbished - usually no more than twice. Because re-machining the face involves cutting away a layer of alloy, any more than two refurbs and the structural integrity of the wheel can be compromised.
