Black Gold - $1,500,000 per gram: Made by mixing gold with black rhodium through a complex process.
White Gold - $100 per gram: Gold blended with metals like silver, nickel, and palladium, often used in jewelry making.
Rose Gold - $110 per gram: Gold mixed with copper, used in jewelry and decorative items.
Green Gold - $145 per gram: Gold combined with silver, commonly utilized in jewelry crafting.
Blue Gold - $150 per gram: Gold mixed with iron, often seen in high-end jewelry manufacturing.
Red Gold - $160 per gram: Gold combined with copper, frequently used in high-end jewelry production.