What should I shop for and bring home from Johannesburg?

[CatcalledHera]

I'm travelling to Johannesburg with work and staying in Sandton. Sightseeing, work outings all planned but looking for tips of what's good to shop for and bring home please?

I can't ever imagine going again so need to make the most of the opportunity!

Herbs and spices. There’s one called ‘Green onion’ which is amazing.And lots of other mixes you just can’t get here.
Biltong.
Diamonds!
in one of the malls there’s a huge African craft market, so I’d be stuffing my suitcase from there.

Tanzanite jewellery.

Milo cookies (I buy them at the airport) - DH's favourite.