Sterling VanDerwerker Diadem Jewelers

I’ve known Golden Sun to produce the most consistent platinum casting for us when we need it most: FAST. Golden Sun responds to an emergency quick delivery request better than any casting business in the industry. Golden Sun uses the same processes in CAD and understands the demands for CAM services.There has never been a more trusted, competent and quality supplier for our store.

Sterling VanDerwerker Diadem JewelersCGA (AGS) GG (GIA)Royal Diadem Jewelers
Dennis Loss

We always use Golden Sun when we have a piece to cast in Platinum.

Matt has never let us down.  If we have  sent a wax with potential casting issues, he has always remedied the problems before he casts.

Because of his diligence we  have never had a casting failure and our pieces come back in pristine condition.  This attention to detail saves  us time and money and we can always make the deadlines for our custom work.

Thanks for all of your great work!

Dennis LossJewelerAurum Jewelry
Dennis Maron

I have been a practicing metalsmith for over 40 years. During that time I operated a custom jewelry store for 36 years.  At the beginning, I was blessed with a business mentor that shared this mantra  “Success is who you hang with”.  Golden Sun Mfg.  has aided in that success over the past ten years, by providing excellent model work, using the current technology available and never missing a delivery date.  Attention to detail and excellent customer service are the hallmarks of Matt and his staff.

Seeking success in building your customer satisfaction, then hang with Golden Sun

All good things,

Dennis MaronMaron and Maron Studios
Jason Braden
Over decades of making custom jewelry, we have had a constant struggle to find a consistent platinum caster.  Matt and Golden Sun came highly recommended. Over the last 5 years of working with Matt, it has felt like we have another member of our team. He has a manufacturer’s mindset.  If there is a problem, he figures it out quickly and let’s us know.  If I don’t hear from Matt within a day, I know he is working very hard to make sure our models get cast as quickly as possible so we can have it back in our hands.
Working with Matt means that one part of the production process is competently and quickly completed every time.  We have also turned to Matt for milling, growing and CAD work.  He is a pro.  Going to a larger casting shop means your work can get lost in the shuffle or delayed in the work queue.  Matt’s team is small and easy to get a hold of.
His competence and service makes my job easier.
Jason BradenPresident, Jewelers Workshop Madison, WIJewelers Workshop
Bob Lynn

Matt is  the best platinum caster I know.  Even better than me!

Bob LynnGG GIA, Judge and member: Jewelry Judge Appraisers NetworkLynn’s Jewelry Studio
Tim Brown

I have known Matt Feliksa for almost 20 years now , I have always found him to be a very trustworthy business man as well as a kind person. This has been shown to me many times over the years but what he did for me recently reaffirmed his kindness and compassion  not to mention his abilities.

Last year , almost to the day I lost my Daughter and after talking to others in the model making business that I thought would be able to provide what I was wanting to have made, I turned to Golden Sun. I was unaware that they had the proper equipment and skill level to do free form work. Well Golden Sun is who I should have turned to first. You see I wanted to make fingerprint jewelry for all my Daughters siblings, friends and family. Thanks to Matt I was able to accomplish this large task in a very short period of time and his compassion was reflected in doing all this for a very very reasonable rate. Golden Sun is now my go to when I need something done right , quick and affordable.
Thanks Matt and Golden Sun crew,  you’re awesome !!

Tim BrownJewelerTim Brown Jewelers
Fareed Abdulky


We’ve been working with Golden Sun for about six months and have been thoroughly satisfied.  They’ve been great with details, communication, and have helped us meet deadlines on several rush jobs