The Seeds of Midas:
The Seeds of Midas are small, unremarkable, black seeds, like those of a watermelon plant. The seeds do not radiate magic, but any divination spell cast within 10 feet of the seeds causes them to glow with a faint golden light (each equivalent to a candle) for 1 round.
If planted and given sufficient water, each seed sprouts into a melon plant in just six hours (no sunlight needed). Each plant sprouts 1d3 fruit, which are identical to normal watermelons. Unlike the seeds, the melons radiate a strong aura of transmutation magic.
In statue form, the target has an effective weight of 20 times their base weight (thus a 200 lb human would weigh 2 tons as a gold statue) and a value of 1 Guinnea (or 20gp or 20sp depending on your currency system of choice) per pound of their original weight (so a 200 lb human would be worth 210£ or 4000gp). If cut up or melted down, the bones and connective tissue of the original creature will be found inside.