Marquis-cut Diamonds are traditionally set to be perpendicular to its ring shank. Attempting to find a mounting that deviates from this is the proverbial needle in a haystack. The custom ring process obliterates the barrier to having that wish come to life
The desire to go inline with the Marquis-cut is practical given how a perpendicular orientation has to dance around how it may impede an accompanying wedding band.
Marquis-cut Engagement Ring and accompanying Wedding Band worn in harmony.