Deciding on two diamond bracelets, any help would be appreciated

[Chefrae]

I''m having a dilemia on which bracelet I should go for, actually for that matter I own the 18k wg one already and I''m thinking of exchanging. Ideally I''m looking for the better value Both are around $3850 but they have different metals.

Bracelet A
18k White gold - 76.3 grams total weight
Diamonds - 3.24 Carats (40 - Size .08 VS1 clarity and G-H color)

Bracelet B
90.0 Platinum - 86.5 grams total weight
Diamonds - 1.85 Carats (40 - Size .05 VS1 Clarity and G-H color)

I would appreciate any expert opinions.

Thanks
Chef