[quote=@Lugubrious]
[@Hatakekuro] is Nolan aware that each contestant, himself included, was given a map with a specific set of direction to specific lacrima for each person?  By following Indigo's clone, he took the one designated for her.  The one meant for him is still out in the city somewhere.
[/quote]

I don't think that's how it works. I think they had to get a colored larcima regardless since originally they could be traded if one person had too many of the same kind.