If you have no previous gems and no duplicates from the Xanmeer season approximately 21-25k crowns worth of crates.

Copy and pasting this form another thread:

If anyone is good with math, I would love if someone can help figure out how much $$ you'd need to spend on crates to earn 300 gems (for the pet) and ~500 (for the mount), assuming someone has zero crowns and zero gems to start with. We'd also need to factor in that some items you might want to keep, not convert, and not everything can even be converted.

Putting the data here so I can come back to it. LMK if anyone can do a rough estimate or help me figure out how to approach it.

Crate tracker
Live crate tracker

Crown packs (PS4 NA pre-tax):

• 750 crowns - $7.99
• 1,500 crowns - $14.99
• 3,000 crowns - $24.99
• 5,500 crowns - $39.99
• 14,000 crowns - $99.99
• 21,000 crowns - $149.99

Crate prices:

• 1 crate - 400 crowns
• 4 crates - 1,500 crowns
• 15 crates - 5,000 crowns

Conversion rates (AFAIK):

• White items return 1 gem
• Blue items return 5 gems
• Purple items return 13 gems
• Yellow items return 33 gems
• Apex items return 132 gems

"According to Faunter, every crate contains two cards which are always white or green, and one card which is always blue or better. The fourth is random, and the bonus card is always purple or better."

Anyone know of someone on the forums who is good with this kind of stuff?