I am sorry for putting it this way but this is actually a no brained gift: a timeless style tennis necklace starting at under $100. Gat this price point go for sterling silver instead of any white or yellow gold plating if you want it to last! Modern lab grown gems look EXACTLY the same as diamonds unless you’re looking at them through a loupe. LTKstyletip LTKGiftGuide LTKfindsunder100