referring to gemstones that are not classified as precious but still valued for their beauty

अर्द्ध-कीमती

English Usage: Amethyst is a semiprecious stone often used in jewelry.

Hindi Usage: एमेथिस्ट एक अर्द्ध-कीमती पत्थर है जिसे अक्सर आभूषणों में उपयोग किया जाता है।