How does the Tiffany True cut differ from a round brilliant?

It is a square mixed cut: a square outline with brilliant-style facets on the crown. It gives a more geometric look than a round brilliant while keeping strong sparkle.

Is 0.75 carat large enough for an engagement ring?

It is a common size for a solitaire and looks proportionate on most hands. The square cut spreads its weight across the corners, so it can appear a bit larger than a round of the same weight.

Is platinum a good choice for daily wear?

Yes. Platinum is dense and holds stones securely, and it develops a patina rather than wearing away. It does scratch, so it needs occasional polishing to stay bright.

Can the ring be resized?

The knife-edge band limits how much it can be resized, and the designer setting makes it a job for a skilled jeweler. Ask about sizing before you commit.

Does it come with Tiffany paperwork?

New rings come with Tiffany documentation and the maker's guarantee. On the secondhand market, confirm the paperwork and authentication before buying.