The Diamond Ring Company
Hayward, California
- Address
- 351 Southland Mall, Hayward, CA, 94540
- Phone
- (408) 244-6200
The Diamond Ring Company in Hayward, California is a U.S. Coins, Bullion dealer listed on CDXList.com. Contact the shop for current inventory, buy/sell pricing, and hours.
Dealer location
Shop address — not a coin show venue.
Collector notes
Visiting a coin shop
A few notes before you walk into The Diamond Ring Company in Hayward, CA. 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.
Bring coins in a way they can actually look at them
Trays, albums, and labeled bags beat a torn grocery sack. Do not pour coins onto glass. Hand them a box they can work through. Dirt, food, and loose batteries in the same tin make a poor first impression and a slower look.
Tell them if a coin is damaged, cleaned, or already graded
Hiding a problem wastes time and trust. “This one was cleaned” or “this already came back from PCGS” is useful. Dealers would rather adjust than feel tricked. Honesty on the small things makes the rest of the visit easier.
A hold is a promise. Mean it.
If they hold a coin for you, ask how long and how you pay. Come back or call. Do not park the same piece at two shops. Dealers remember the customer who used a hold as a free option. They also remember the one who did what they said.
Online asking prices are not what a shop pays
A listing, a completed auction before fees, and a dealer buy price are three different numbers. Screenshots of asks are not a bid. Bring the coins. Let them look. Then talk. You will get further than arguing from a tab on your phone.
If you feel rushed, you can pause
You are allowed to say you need a minute. You are allowed to pack up and think. You are not required to decide while someone is waiting behind you — step aside and let them go. A good shop would rather you be sure than sorry.