This is video #4 for The Basketweave Diamond Throw, for both right and left-handers, by Bonnie Barker.
The free pattern can be downloaded here: https://www.yarnspirations.com/on/demandware.static/-/Sites-master-catalog-spinrite/default/dw08dfa500/PDF/RHC0502-021681M.pdf
For more crochet with Bonnie, please check out these links:
Love Crafts On-line Store: https://www.lovecrafts.com/en-us/search-v2?q=bonnie+barker
Website/blog: http://www.bonniebay.com/blog
Facebook: https://www.facebook.com/bonnie.m.barker.7/
Bonnie's books: http://www.bonniebay.com
Bonnie's Amazon page: https://www.amazon.com/Bonnie-Barker/e/B00NGFKUT2
Instagram: https://www.instagram.com/bonniebarker7290/