Final answer:
To find out the value of the piece, Lacey should take the brooch with precious stones to a jeweler, who is qualified to appraise jewelry.
Step-by-step explanation:
Lacey inherited a large brooch containing what appeared to be large precious stones and sought to determine the value of the piece. To ascertain the value of her grandmother's jewelry, Lacey took it to a jeweler. This professional is skilled in the valuation and authentication of precious stones and jewelry, making them most suitable to appraise such a valuable heirloom. Jewelers have the expertise to closely inspect the stones, settings, and metalwork to provide a reliable estimate of the piece's value. In addition to providing an estimated worth, they can also offer insights into the history and craftsmanship of the piece, further clarifying its value.