Vimeo Video Embed Issue: Embedded video not displaying at proper size

[WillIFM]

Hello 

I am embedding a vimeo video into my product listing and having an issue with the way it is placing and sizing the video on the Shopify product page.

When I place the Vimeo embed code into the Shopify product description box the video is rendered exactly as intended - 1:1 aspect 1080x1080 - However once I publish/preview the page the video is rendered much smaller and with a pillarboxing effect - It is worth noting that when you publish the page you will notice there is a space above the embedded video where the 1080x1080 video should appear but the smaller video is "pushed" below.

Thank you in advance for any help regarding this issue

Here is a link to the product page with the issue:

https://inveniofineminerals.com/products/tourmaline-brazil-3

I have also included a couple of pictures