Start with an official transcript, which institutions generally issue as routine, then ask about a replacement parchment or certified copy, which often follows a slower and more formal process. Requesting both in the same contact avoids a second round of correspondence and a second wait.
Ask precisely what each record will say
Institutions use different names for similar things: duplicate diploma, certified true copy, attestation, statement of completion. Ask what wording each carries, whether it names the field of study and the conferral date, and whether it is sealed or signed. A record that omits the field of study may not help a file that turns on the discipline studied. Confirm delivery method and whether the institution will mail to a third party.
Present the diploma as printed, the transcript showing the program, and a certified translation. The officer decides whether the degree is in the profession, so the transcript does the persuading. Bring the original credential, the transcript and any professional-order membership card, and keep them together with the offer. Do not add a general letter from the university describing the applicant as an agronomist; the transcript is the deciding record and an opinion letter adds little.