What do think is a fair price or would be willing to pay for this diamond engagement ring?

Its uncertified, color H-I, clarity SI2, pear, .68cttw, center stone is 6mmx4mm and 1/3rd ct. .34ct, sidestones same color and clarity 2 baguettes, 2 princesses, set in a 14k Yellow Gold setting, size 8 shank is about 2.5mm [...]