hi im in new york and i got a supposed 4ct diamond cross but some diamonds have some black marks on it I was told they are si quality but was told its more like I1/i2 quality diamonds, its about 0.075ct per stone totaling near 4ct how probably i quality and h/i color, how much aprox value are we looking at ? also im getting it appraised and they asked how much i paid for it, do they take how into consideration the price i paid when they do appraisal? the appraisal wasnt onsite for me to view it but im new to the diamond game and was just wondering thanks