A saree carries its value in the weave and the work, which is exactly what a quick photograph destroys.
Photographing it folded on a bed
The border, the pallu and the reverse are where the value is visible. Show them, in daylight, and show the piece opened.
Claiming a weave you are not sure of
Regional weaves have names that mean something specific, and the room frequently knows more than the seller. "Sold to me as Kanjivaram, I cannot confirm it" is honest, sells, and protects you.
Saying "pure zari" without support
It is a claim about material. Say what you know and how you know it; if you do not know, describe what you can see.
Not saying whether the blouse piece is attached
And not saying how much seam allowance is left. Both decide whether a buyer can wear it, and both are condition facts in this category.
Hiding the fold lines
Old silk gives way at the folds first. That is where a buyer will look, so it is where you should look first too. Describing saree condition.
Packing without tissue
Zari and embroidery catch on whatever is folded against them, and a pulled thread is permanent. Tissue between layers, sealed bag against damp. Packing sarees.
Ironing before a show
Heat on zari is a risk with no upside. Hang it out instead.
The one that costs most
Powerloom described as handloom. It is a real difference in work and price, and a buyer who knows the weave will know.
Questions people ask
Does a small stain ruin it?
No. Show it, place it, and price for it.
Is a vintage saree worth more?
Where the work is good and the fabric has survived. Age alone is not value.
Should I dry-clean first?
For occasion pieces usually yes, and say that you did.
More: selling sarees, what one is worth.