Recommendations for body jewellery online (Belly Button)

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My DD has a belly piercing (and the beautiful tiny waist and flat bely to show it off) had it 4 years so well healed

She wants some jewellry for her birthday

Needs to be titanium and with 'jewel' ends (curved bar not dangly bits )

I've looked online but hard to tell what's good .

Any recommendations
TIA

All of these brands are high quality.

BVLA
Anatometal
LeRoi
Alchemy Adornment
Neometal

I wear BVLA and LeRoi myself.