What you may legally call it
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The name on the jar makes a claim whether you intended it to or not, and some of those claims have paperwork attached.
Identity is a rule, not a slogan
The statement of identity must be the common or usual name of the food. A fancy brand name sits alongside it, not instead of it. "Sunset Dust" is a name; somewhere on the panel it has to say what the food actually is.
For a blend, the ingredient list carries the substance and you have latitude in the name above it.
Claims that carry obligations
Organic is a certification, not an adjective, and it is unavailable if the material was treated with ethylene oxide. Since treatment happens before you buy, this is a question for the supplier rather than the label designer.
Irradiated ingredients carry disclosure obligations, and again the treatment decision was made upstream of you.
Fresh ground invites the obvious question about when, and it is a claim you can actually substantiate with a batch record, which makes it a good one to make honestly and a poor one to make loosely.
Terms with no legal meaning
Artisan, small batch, premium, hand blended, gourmet. None are defined, none are protected, and all are used by producers a thousand times your size.
Which makes them weak differentiators rather than dangerous ones. The stronger claim is always the specific one: the origin, the grind date, the volatile oil figure, the fact that you bought it whole.
Where the line sits
Describing what you did is safe and usually more persuasive than an adjective. Describing what the product will do for somebody's health is a different regulatory universe and not one a spice business should enter.
The useful test: could you show somebody the record that makes this sentence true. If yes, say it. If no, it is decoration and it carries risk for nothing.