A very specific search on pricescope revealed a range of about $2500 between the lowest priced diamond and the highest priced diamond. Why is there such a large range in pricing? Is the lowest priced vendor trying to rip me off with an "over-rated" diamond or is the highest priced vedor just way overpriced??? Keep in mind all diamonds in this search were of the same size, color, clarity, and were very similar in depth and table percentage. Thanks in advance for any help with this question.