Get Instant Cash Today – Highest Payout Guaranteed Call Us Sell Your Gold in Southfield, MI Bring your gold jewelry, coins, or scrap gold to Diamond City and receive a no-obligation offer in minutes. Call Us Sell Your Gold in Southfield, MI Get Instant Cash Today – Highest Payout Guaranteed Bring your gold jewelry, coins, or scrap gold to Diamond City and receive a no-obligation offer in minutes.