Decants versus full bottles
Both are listings on the same marketplace. The difference is how much fragrance you are buying, and which details the listing is required to show.
Decants
A decant is a pour into a smaller atomizer. One listing can offer up to 20 sizes, each with its own price. That is the practical way to wear a fragrance a few times before buying a bottle. The order minimum on Obsidia is $5.
Full and partial bottles
A bottle listing says whether it is full or partial, the fill level, and whether the box is included. Fill runs from bottle-only through a sealed bottle. If an older listing has no fill or box value, it reads as unknown rather than as full.
Sellers add proof photos of that bottle: front, back, bottom, under the cap, and the valve. Obsidia does not inspect the bottle in a warehouse. The buyer compares the delivery with those photos during the 48 hours after delivery.
The fee changes the math on a bottle
The seller fee is 10% until it hits $15. A $40 decant is a $4 fee. A $150 bottle and a $500 bottle are both a $15 fee. Shipping is the ground label price either way. Fee examples.