most superior in quality (of a group)

most excellent

well known as being of superior or excellent quality

famous, outstanding

a precious stone or jewel, especially cut or polished

precious stone; treasure

a model (of excellence); apparently perfect person or thing

outstanding example

something that is known to exist by the senses; an unusual or extraordinary person, thing, amount, event etc

rare occurrence; wonder

(a store of) gold, silver, jewels etc; a highly valued object or person

prized possession or entity

having no equal

superlative