Minelab Equinox 800
The 40 kHz frequency in Multi-IQ is genuinely sensitive to small gold, Gold Mode is a real mode rather than a sticker, and multi-frequency handles the mineralized ground that defeats cheaper machines. It's also submersible, which matters for gold jewelry on beaches.
For sub-gram nuggets in severely hot ground, a dedicated prospecting machine still goes deeper. For everything short of that, this is the sensible buy. Read the full Minelab Equinox 800 review.