The funding round was backed by climate change focused investors including OnePlanetCapital.
"We are delighted to support Terrafend in this raise. It is a really environmentally impactful business with an impressive pipeline of global corporate customers"
The betting industry veteran joins a roster of backers to support commercial growth.
"Our ambition is to become one of the leading affiliate marketing technology platforms and attracting the right strategic investment from the gaming industry and beyond is a key part of this plan,"
The investment from BGF will support product development and sales growth.
"In the last eight years, we have built a highly successful, and profitable business through a balanced blend of strong industry experience and technical know-how."
The fine jewellery brand secured the investment from entrepreneur Steven Bartlett in exchange for a 3% equity stake.
"We know that lab-grown diamonds are the future. Sharing our story on such a huge platform like Dragons Den was a unique opportunity to help spread the word about this relatively new technology, which allows beautiful diamonds and jewellery to be made, without costing the earth."