Very Good
Gemstones: Good color and cut, usually with some minor inclusions. Similar to the highest quality stones present in most non-specialty jewelry stores. Mostly heated stones.
Diamonds: GIA certified natural diamonds with faint color around VS2 clarity.
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Excellent
Gemstones: Very good color and very good cut, very few inclusions. Similar to the higher quality stones present in most specialty jewelry stores. Mix of heated and unheated stones depending on desired size and color.
Diamonds: GIA certified natural diamonds with very faint color around VS1 clarity

Exceptional
Gemstones: Excellent color and cut, few-if-any visible inclusions.. Similar to the highest quality stones present in most specialty jewelry stores. Mix of heated and unheated stones depending on desired size and color.
Diamonds: GIA certified natural diamonds near colorless around VVS2 clarity

Heirloom
Gemstones: Exceptional color and cut, generally without visible inclusions. Rare to find this quality level outside of custom-made settings from specialty jewelers. Mostly unheated stones.
Diamonds: GIA certified colorless diamonds around VVS1 clarity