Jewellery/sparkly pens/earring cards (Witton le Wear DL15)

Necklace bought in Mexico many years ago, sold as silver but not hallmarked, stone unknown.
Pendant is a 925 silver setting but I cant remember what type of stone it is.
Two very sparkly pens (ballpoint) with screw off lids, refillable and refills readily available online.
Black cards for displaying earrings, with hanging hole and two holes for earrings to slot in. There are three packs and I think there are about 12 per pack.
Collection only please (I know it’s only light but posting just not an option, sorry) from near Witton le Wear. If interested, please message me with day and time that would suit you for collection (I’m flexible but prefer before 5pm if possible). Thank you!