This is the 1913th most frequent French word.
précieux
Valuable, precious, or refined.
Here, 'précieux' describes the high value and rarity of the jewel.
Ce bijou est très précieux.
This jewel is very precious.
In this case, 'précieux' emphasizes the emotional importance and value of moments with friends.
Le temps passé avec mes amis est précieux.
The time spent with my friends is precious.
Here, 'précieux' refers to an affected or overly elegant expression in speech.