What is micro-jewelry? Micro-jewelry refers to the smallest and often times most valuable pieces of gold jewelry. This type of jewelry includes small stud earrings, tiny pendants, ultra-thin gold bracelets and small bits of gold. Generally, gold rings do not fall within this category.
The reason that micro-jewelry can be very valuable is not due to the gold content which is minimal. Often, these pieces of jewelry contain diamonds and other gemstones that can be very valuable. These pieces of jewelry are also among the most easily lost and are missed by many detectorists because they are too small to be detected or they are discriminated out as a tiny bit of foil.
So, is the Garrett Ace 250 metal detector a micro-jewelry hunting detector? It is not. It simply does not have the sensitivity necessary to find this kind of gold. It is true that small gold chains are sometimes found with an Ace 250. This happens when the Ace 250 picks up the clasp of the chain or else a larger pendant that is attached to the chain.
The small Garrett sniper coil does a better job at finding smaller pieces of jewelry, but it misses most of these objects. Occasionally, this coil will barely register one of these items when scrubbed across the coil, but once set on the ground it does not see the piece of jewelry at all.
If you are interested in finding these small pieces of gold, then a more sensitive metal detector is needed. The most effective metal detectors for micro-jewelry are those used for gold prospecting that can detect tiny nuggets. That said, the Garrett Ace 250 will still detect some small gold rings and other gold items, just not the tiniest ones.