1 / 1000 chance when mining to receive an Uncut Gem

On gem drop, roll rarity:

Common 70% | Uncommon 20% | Rare 8% | Epic 1.8% | Legendary 0.2%

Gems store metadata: type + rarity (plus cutQuality / stolen later)

Selling (Legal)

Jewellery Shop NPC buys Uncut Gems (tunable prices):

Common $500–750

Uncommon $1,000–2,500

Rare $5,000–7,500

Epic $10,000–15,000

Legendary $30,000–50,000

Optional: Cutting

Pay a cutting fee → convert to Cut Gem (higher value)

Cut quality roll: Perfect / Normal / Flawed (affects sale price)

Jewellery Shop Robbery (Risk vs Reward)

Robbery rewards Cut Gems only

Police alert + 60min cooldown (global or per-player)

Raid items flagged: stolen=true

Stolen Goods Handling (Anti-Exploit)

Jewellery Shop won’t buy stolen gems

Stolen cut gems sold to Fence/Black Market at 60–80% value OR launder (fee + time)

Balance: pick Daily Sell Cap or Dynamic Pricing (or both)