I took a look at one of your completed listings.  Your description was two lines long, with one of those letting prospective buyers know that the listing was posted from a mobile.

I think the 'lazy listings' comment was aimed at your descriptions.

-  You need to put length, materials (stones) and other information.  Remember, you are trying to sell them, so sell them in your description! 

-  Think of the information you look for when you buy on eBay.

-  Look at some completed listings of other (successful) sellers and see how their listings differ from yours.

-  Use the full 80 character allowance for your titles.  Use words that prospective buyers would search for when looking for items like yours.

- You get 12 photos as part of your listing, so take at least 6 photos of the item to show it off.

You need to put more effort into your listings than buying something to display them on.

Please don't take these comments as criticism, think of them as being free help/advice from a fellow seller.