opals can be worth a lot of money

Question

which piece of evidence supports this inference

Answer 1

Several pieces of evidence support the inference that opals can be worth a lot of money:

1. Rarity: High-quality opals, especially those with unique color patterns and play-of-color, are rare. The rarity of these gems can significantly increase their market value.

2. Market Sales: Auction results and gemstone sales often show that exceptional opals can fetch thousands to even millions of dollars. For instance, the Black Opal from Lightning Ridge, Australia, is known to have sold for record-breaking prices.

3. Gemological Reports: Certification from gemological institutions, such as the Gemological Institute of America (GIA), can boost the value of opals significantly, as they provide a guarantee of quality and authenticity.

4. Demand: There is a strong demand for opals in jewelry, particularly in regions where opals are culturally significant or popular among collectors, further driving up their prices.

5. Price Lists and Appraisals: Gemstone appraisals and industry price lists often list opals, especially high-quality ones, at high price points. The price can vary based on clarity, color, and size, reflecting their value in the market.

These forms of evidence collectively indicate that opals can indeed be worth a lot of money.