6. Common Low-Level Gem for Small Currency
Player 1:

Offers: Level 10 Added Fire Damage
Player 2:
Offers: 2 Chaos Orbs
Explanation:
An Added Fire Damage gem is useful for many builds, and although this gem is only Level 10, it still provides solid value for a mid-tier build. Player 1 can trade it for 2 Chaos Orbs, a reasonable price considering the gem's level and utility.

Tips for Gem Trading in PoE 2
Check Market Trends:
Gem prices can fluctuate based on player demand. Keep an eye on the trade market to see which gems are popular for Path of exile currency top-tier builds and what players are offering for them.

Corruption & Quality:
Don’t forget that corrupted gems or gems with high quality (such as Gemcutter’s Prisms) often fetch higher prices than uncorrupted gems. You can invest in these to increase the value of your gems before trading.

Trade for Builds:
If you’re working on a specific build, keep in mind which Skill Gems are vital for your setup and trade for Path of exile currency for sale those directly. You might also want to offer currency or rare items in exchange for high-demand gems that fit your playstyle.