From the dejonghe studio

Jewelry Articles & Insights

Incredible 5,655 Carat Emerald

Incredible 5,655 Carat Emerald

Globally renowned emerald supplier Gemfields has been a pioneer in restructuring the emerald market. Recently the company made an incredible discovery of a 5,566 carat emerald that emerged from the...
Incredible 5 Carat Blue Diamond Sells at Auction

Incredible 5 Carat Blue Diamond Sells at Auction

Natural blue diamonds are the rarest color of diamond found on the Earth. Classified as type IIb Diamonds, blue diamonds have boron within their crystal structure that allows them to emit a bluish ...
Creating the Alexandrite and Diamond Pendant
14k Gold

Creating the Alexandrite and Diamond Pendant

Alexandrite – "Nature’s Magic Trick" We have always loved Alexandrite because of its rarity and unique property of changing color. Alexandrite is often referred to as, “Emerald by day and Ruby by n...
Ammolite Broach

A Winged Nymph

Dennis deJonghe rediscovers a gem Written by Irina Missiuro. Originally published in the MJSA Journal. Sometimes a designer sees a stone and is instantly inspired to create a piece. Other times,...
Oval Sapphire and Baguette Diamond Ring

deJonghe Original Jewelry and the story of the stones

WRITTEN BY MEGIN POTTER. PUBLISHED IN SIMPLY SARATOGA SPRING 2018 Within each of the pieces at deJonghe Original Jewelry, there is a story. From Unmatched Origins “The first thing when it comes to...
Sapphire Ring ad

Bring Your Vision to Life!

We specialize in custom jewelry and can create the perfect ring for you. Bring us gemstones you want to reuse or let us source top quality gems for the new jewelry! Schedule a complimentary jewelry...
Argyle Everglow Fancy Red Diamond

Argyle Mine Pink Diamond Tender 2017

The Argyle Mine in Western Australia is known for its intense pink, red, and purple diamonds. These are the most rare colors to find naturally in diamonds. Every year, the owner of the mine - Rio T...
Saratoga Living Summer 2017 Ad

Saratoga Living Summer 2017 Ad

Our full page ad in the Saratoga Living 2017 Summer Issue. It features our one of a kind Moonstone, Sapphire, and Diamond earrings in platinum.
Tuscon Gem Show 2016

Exclusive 2017 Tucson Gem Show Information

Get dibs on our best gem finds before anyone else!
Tuscon Gem Show 2016

Exclusive News for our Tucson 2016 Gem Buying Trip

Get dibs on our best gem finds before anyone else!
John de Rosier

deJonghe Jewelry welcomes John de Rosier to the team

We're happy to announce a new member to the deJonghe Original Jewelry team: John de Rosier. John is a very talented craftsman specializing in advanced stone setting techniques.
Ammolite Broach

Ammolite Awe Part 9 - “Final Setting and Polishing”

The conclusion of any jewelry piece is putting on the final polish. As you have observed there are many details in building a piece. These details add a great deal to the overall beauty of the brooch.
Ammolite Awe Part 8 - “Soldering and Assembly”

Ammolite Awe Part 8 - “Soldering and Assembly”

All of the pieces to this brooch have been made and now it's time to assemble everything together. I will do so by soldering them in place.
Ammolite Awe Part 7 - Forging and Marquise Setting

Ammolite Awe Part 7 - Forging and Marquise Setting

So far creating this piece has comprised of many basic jewelry techniques: sawing, soldering, casting and now the one of the most traditional methods utilizing a hammer and anvil – forging.
Ammolite Awe Part 6 - Wax Carving

Ammolite Awe Part 6 - Wax Carving

Now that the two main pieces - the Ammolite's Bezel and repousse gold - have been welded together, I can begin the wax carving step for the accent stones.
Ammolite Awe Part 5 - Layout

Ammolite Awe Part 5 - Layout

Now that I have finished the repousse and the bezel for the ammolite, it's time to start piecing together the brooch. I have to be certain of the layout and how both sections relate to the center f...
Ammolite Awe Part 4

Ammolite Awe Part 4

As I continue to build the Ammolite Brooch I have decided to create a gold shape using an ancient technique called repoussé. It will be opposite of the bezel set ammolite. It is a method of metalsm...
Ammolite Awe Part 3 - Ammolite Setting

Ammolite Awe Part 3 - Ammolite Setting

The ammolite will be set in a full bezel; a narrow band that follows the entire contour of the gem. The height of the bezel is just slightly higher than the thickness of the gem so when it is pushe...
Ammolite Awe part 2 - Design and Sketches

Ammolite Awe part 2 - Design and Sketches

I like the free form shape of the ammolite in contrast with the traditional round cut of the fire opal. I also like the variation in shapes, textures and even brilliance.
Ammolite Awe part 1 - Behind the Curtain and Inspiration

Ammolite Awe part 1 - Behind the Curtain and Inspiration

Showpiece; a jewelry piece created to enter into a “show” or competition. It is not commissioned by a customer or to fill the jewelry case. It is a jewelry creation that may take many hours to co...
Black Friday and Small Business Saturday 2016

Black Friday and Small Business Saturday 2016

10% off your entire purchase November 25-26, 2016!