Blazon:

Arms:  Argent between two feathers gules a popinjay with dexter foot raised azure, membered, beaked, and collared gules, in base two bars wavy azure.

Crest:  A demi-sun of seven rays issuant or.

Motto:  Cogita intra fines (Think within limits)

Design Rationale:

The arms are canting, alluding to the Armiger's nickname "CJ." It depicts a sea with a parrot, historically known as a popinjay; taken together, these can be read as "sea-jay". The quills are symbolic of academic pursuits, the pair referring to the Armiger's double major.

The crest is a seven-pointed half-sun, reflecting the Armiger's Philippine heritage, inspired by the use of a sun in the Philippine coat of arms. The number of rays is partially an aesthetic choice; the seven rays also represent each day of the week, and in turn the Armiger's personal belief that each day is an opportunity to live life to the fullest.

The combination of blue and white reinforce the nautical theme of the design, with the blue representing waves and water in general, and the white representing the the color waves take on as they crest or crash onto the shore. White and red are the colors of the Armiger's university. The gold of the sun is in keeping with usual heraldic practice.

The motto captures the Armiger's approach to view things as pragmatically as possible in life, taking into account his own limitations and avoiding overestimating his abilities.