Welcome to Hoover & Strong - your eco-friendly refiner and manufacturer of precious metals for over 90 years. Our HARMONY brand of high quality products paired with ethically-sourced gems and diamonds includes bridal jewelry, findings, mill products, custom casting and refining services.
Learn more about HARMONY and promote your eco-friendly jewelry with FREE onsite promotional materials and educational resources available to all Hoover & Strong customers.
Diamonds
We have an inventory of over 40,000 loose diamonds to choose from. Many shapes and carats available.
Coming Soon! Our HARMONY diamonds - ethically sourced from Canada.
- Search All Diamonds
Mill Products
From grain to solder, we offer mill products for all your jewelry needs.
- Casting Grain
- Sheet
- Wire
- Tubing
- Solder
- Coins & Bullion
Custom Casting
Have our experts cast and finish your ring designs in gold, platinum, palladium or silver.
Use our online calculator to receive a free estimate.
Refining
Follow these refining processes when sending in your scrap.
- Preparing Your Shipment
- Refining Terms & Settlement
- Increase Your Bottom Line
- Get Higher Returns
- Finding Your Metal Scrap
- Buying Jewelry Scrap
- The Refining Process
FREE TruSeat® Setting
Get your first band set for FREE when you place a $100 minimum order for TruSeat® bands.
We have taken our high quality die-struck TruAzure® bands and made them easy to set...- FREE TruSeat Setting
HARMONY Metals & Gems™
Hoover & Strong's eco-friendly products are made from recycled metals and ethically sourced diamonds and gems. Learn more about HARMONY and promote your eco-friendly jewelry with our promotional materials and educational resources.
- HARMONY Metals & Gems
Technical Articles
Want to learn more about Palladium, the new white metal? How about some assembling and soldering tips?
We have hundreds of educational articles available on our website.- Technical Articles










