Jeanne's Fine Jewelry Blog

Learn from GIA Certified Graduate Gemologist Jeanne Katsuro 

Jeanne Katsuro

How to Keep Jewelry Clean of the Corona Virus

This solitaire diamond ring, set in platinum and gold, is elegant in its style and simplicity.

When it comes to protecting yourself from the Corona virus, please be extra fastidious when it comes to wearing your jewelry.

Remember to wash your hands for 20 seconds—and take off your ring and wash underneath and all around the ring!

The Corona virus can easily hide under the Diamonds or Gemstones set in your jewelry and in-between the prongs. So clean it well.

Make sure you add alcohol to your jewelry cleaner liquid (which typically consists of ammonia, soap and water.) This will provide the antibacterial properties you need to properly disinfect your jewelry.

Even more important:  Do Not Use Clorox!
This is because Chlorine—the basic chemical in Clorox—reacts to the solder on your jewelry. This is why chains worn in the swimming pools often start turning black.

The Chlorine leaches out the solder that holds your jewelry together. For example, I had a customer who decided to soak her diamond engagement ring in Chlorox instead of Jewelry Cleaner. In the morning, the head, which consists of the prongs that are holding the center diamond had completely separated from the ring. What happened was the chlorine completely leached out the solder that attached the head (prongs) to the ring.

Remember everything is chemistry! Chlorine and jewelry do not work well together. So do not clean surfaces with Chlorine products while you have your jewelry on.

Be Smart! Stay Safe!


Why You Should Keep Wearing Your Earrings!

Diamonds on white gold hoop earrings work well with a variety of fashion styles from casual to classic.

As you know, earrings add a certain level of finesse to your look—which is a great reason to wear them regularly! However, there is another important reason to wear your earrings at least once a week:

If you do not wear your earrings for long periods of time—the pierced holes in your ears start to heal and eventually close!

If the holes completely heal and you can no longer put your earrings on, fortunately you can do one of two things.

A. Go get your ears re-pierced.

B. Try to open the holes in your ears yourself.

The process is easy—just follow these steps!

1. Simply place the post of the stud into the indentation in your ear.
2. Push the earring post into the indentation.
3. With your other hand, rub the back of your ear with your index finger.
4. Keep pushing the post into the indentation and keep rubbing the back of the ear with your index finger.
5. After some time, you will see that the post eventually finds its way through your ear.

Now, do the same thing on the other side of the ear. That’s all there is to it!

Have a Happy Day!

– Jeanne

What am I Doing Now?

Mens custom sapphires and diamond ring

Hi, I’m Jeanne Katsuro, owner of the Classic Rock Custom & Designer Jewelry online store. I am a Graduate Gemology and a Geologist.

After 30 years, I’ve decided to semi-retire! I’ve recently closed my brick and mortar store, which was physically located at 570 N. 6th Street in San Jose, CA 95112. At this location, I maintained a 5-STAR YELP rating throughout all of my years in business.

Now, I’ve am evolving my website to sell custom jewelry ONLINE! My services will include:

• Selling the physical inventory that I have left from my store at 50 to 70% off. This jewelry is all high quality as all of my clients know.

• Starting a new Design Your Own Custom Jewelry ONLINE service (Send your Design Ideas to

• Teaching jewelry lovers all about quality jewelry!

For those of you who know me, my degree from the University of Texas at Austin was in secondary education in Science! I love teaching! I will continue to post educational blogs and videos to help you with understanding jewelry, diamonds, gemstones and pearls. Ask questions! I am here to help you! Be patient—it make take me awhile to answer everyone’s questions. (Remember, I’m semi-retired and I’m helping everyone for FREE!)

We look forward to meeting you!


Welcome to the Classic Rock Custom and Designer Jewelry Blog!

Welcome to the Classic Rock Custom and Designer Jewelry Blog!

Hi, I’m Jeanne Katsuro, owner of the Classic Rock Custom & Designer Jewelry store in San Jose, California. If you’re just starting to learn about fine jewelry, diamonds, colored gemstones or pearls, you’ll find our new website a great source for information.

I am a Graduate Gemologist from the Gemological Institute of America, and I’m a science teacher who graduated from the University of Texas at Austin. So, I love to teach!

For more than 30 years, I’ve helped many people with their diamond engagement rings as well as their special and custom jewelry requests.

We’re so lucky that many people have given us a 5-star YELP rating. Many customers have become our friends and still totally trust us!

Everyone is welcome to contact me through email at [email protected] to ask any questions about jewelry.

I’m here to help you!

We look forward to hearing from you!



I love to share my knowledge of diamonds and gemstones, and even more important, help others find their the jewelry of their dreams!

Here’s what you’ll get when you subscribe to my blog:

• Jewelry trends

• Diamond engagement ring ideas

• Custom jewelry design tips

• Special jewelry sales and trunk show updates