Diamond Mine
Aurora, Colorado
- Address
- Aurora, CO, 80010
- Website
- dmjewelry.com
- Private form — use Email shop
Diamond Mine in Aurora, Colorado is a U.S. Coins, Bullion dealer listed on CDXList.com. Contact the shop for current inventory, buy/sell pricing, and hours.
Dealer location
Street is not on file. The pin is the ZIP or city area — not a door.
Collector notes
Visiting a coin shop
A few notes before you walk into Diamond Mine in Aurora, CO. These rotate daily. They are general collector etiquette from CDXList — not this shop’s house rules. When something is unclear, ask the person at the counter.
Do not clean the coins
Polish, dip, baking soda, and a toothbrush lower the value of most collectible coins. Leave dirt and toning alone. If you already cleaned something, say so. A dealer would rather hear the truth than discover it under a lamp.
Insurance and probate need different paperwork
If a lawyer, an executor, or an insurer sent you, say so. Bring what papers you have. The shop may not be the appraiser you need, and they will tell you. That honesty is useful. It is better than leaving with the wrong kind of number.
What is in the case today may be gone tomorrow
Coin shops turn inventory. A picture from last month is not a hold. If you want a date or a grade, call or start a want list. Showing up and hoping the exact piece is still there is how people get disappointed.
Bring identification on a larger visit
A license in the car does not help at the counter. If you might sell, buy something expensive, or move cash, bring ID in with you. It speeds things up and avoids an awkward pause after you already agreed.
Cash is still common. That is normal.
Coin and bullion shops have worked in cash for a long time. It is not shady by itself. Count together at the counter. Do not count a stack in the parking lot with the door open. If you are uncomfortable carrying cash, say so and ask what else they can do.