Balance Points for Necklines & Jewellery

I found an interesting website & blog recently which explained how to work out your 'balance points' (see photo)

Take a piece of string (purple) and measure the length of your face (forehead to chin) then use that same measurement from your chin to your chest. Necklines and jewellery look best within 1 cm of this point. If your necklines end here, it makes your neck look longer. Button your shirts up to it; the ideal lowest point of your decolletage.

Another balance point (green) is found by locating the widest part of your face (it may be across your cheekbones or forehead or chin) and drawing an imaginary line across your face. Now measure from this line to your chin. Using the same measurement, mark from the shoulder line down (onto your chest). This marks the highest point for your necklines and necklace.