The Loupe

Custom Design - Luis's ENORMOUS Opal!

Custom Design - Luis's ENORMOUS Opal!

We are fortunate to have some pretty spectacular clients that allow us to constantly expand the boundaries of custom designed fine jewelry.

The process we use removes all of the guess work so you know exactly what your piece is going to look like before we ever begin making it. As a little peek into what it's like to design a truly one-of-a-kind heirloom piece of jewelry, we're going to take you inside our designing of an enormous opal ring for a dear client and friend, Luis.

Michael and Luis

H. Michael Rose and Luis Coronado at Kristoff Jewelers in Naples, FL

Luis loves big rings! He often admired our selection of rare Ethiopian opals that we have in the store, but they weren't quite big enough for him.  So, he set us on a mission to find him a 20+ carat opal. We were able to locate a very rare Australian opal that originated from an area that hasn't been mined in over 25 years.  The area was known for producing crystal opal with a lot of red in it.  None of the opal that has been mined in more recent years has been discovered with as much color. So, finding an opal with the color play in Luis's is nearly impossible.

The opal we used in his ring was actually a large free form piece of opal that had been polished in it's original shape, and had never been cut. We were able to secure it from the mine owner's private collection and have it cut to our specifications - 26 x 19.5 mm and over 22 carats!

The Computer Aided Design (CAD) of the Ring

CAD Design of Custom Opal Ring


Photo-realistic renderings of the ring prior to production.

3/4 Render of Opal Ring

Rendering of Opal Ring

Side View Rendering of Opal Ring

Through Finger View Rendering of Opal Ring



To scale rendering of the ring to show the size of the ring on the hand.

Rendering of Custom Opal Ring on Hand

3/4 Rendering of Opal Ring on Hand

Side View Rendering of Opal Ring on Hand


The finished beauty!

Custom designed rings by Kristoff Jewelers

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