So Pakistan apparently has a very successful surgical/manicure instruments industry that is very well respected internationally. I bought a small pair of scissors 15 years ago (the name stamped on the side was Chaudhury or something to that effect, sadly nothing of them turns up on Google), and those scissors have never been rusted and are still fairly sharp.
Keep in mind, I haven't sharpened them in 15 years and done absolutely nothing in terms of maintenance, despite being used weekly. Unfortunately the were dropped onto the bathroom floor and so of course now have to be burned.
To that end, unfortunately the entire instrument industry is located in Sialkot and individual manufactureres don't have retail outlets in Karachi. And just buying one pair of scissors and shipping to Karachi is unecessarily expensive.
So, now we're back to the title: Where can I buy a pair of very nice scissors (such as the ones I'm using right now) in Karachi?
As an addendum: if possible, I would urge all of you to support this industry. It is one of our few domestic industries that is actually performing very well.