Other designers also used these cabochons and some colors of them are still available for purchase. These stones came in a number of different sizes but D&E only used a couple of sizes of them.
Ann's book, Juliana Jewelry Reference has Moroccan matrix designs on pages 105-108. My book Juliana Jewelry - The Last Generation has a full
You can find many examples of this stone in the http://isitjulianajewelry.com database.
Moroccan Matrix designs can be purchased in my store at:Moroccan Matrix CabochonsAll of my other great jewelry is also available at: https://www.ourvintagerosejewelry.com/
This last brooch is an example of a Moroccan Matrix piece that is not D&E. I often see it identified as D&E. Notice that it has different sized Moroccan Matrix cabochons that you see in the D&E examples.