Need help evaluating the optical symmetry of these candidates. I like that [1] has more carat for the dollar, but [2] and [3] seems to have better patterns, and [3] is a K color. Not sure if that alone is worth the extra dollars.
[1] 1.92ct L-VVS2 GIA Table 57% Crown 36.0 Pavilion 40.6 https://www.jamesallen.com/loose-diamonds/round-cut/1.92-carat-l-color-vvs2-clarity-excellent-cut-sku-20960521 $6620
[2] 1.80ct L-VS2 GIA Table 59% Crown 35.0 Pavilion 40.6 https://www.jamesallen.com/loose-diamonds/round-cut/1.80-carat-l-color-vs2-clarity-excellent-cut-sku-19804055
$6760
[3] 1.76ct K-VS2 GIA Table 57% Crown 35.0 Pavilion 40.8 https://www.jamesallen.com/loose-diamonds/round-cut/1.76-carat-k-color-vs2-clarity-excellent-cut-sku-20705234 $6840
Of these three I would go with [2]. It has the sharpest crystal (no strain) compared to the others. You won’t notice any significant difference in optical symmetry in practice.