About 1/3 of our engagement rings are custom-made at MALKA Diamonds in Downtown Portland. Seems to be one of our niches Our grooms-to-be look at the showroom and get ideas. Some find the perfect piece, some propose with just a simple solitaire & let the bride pick out her setting and 1/3 decide to create a one-of-a-kind custom ring. The latest proposal decided on a custom ring. Take a look at the wax to finish ring images. The ring is an 18 karat white gold with over 75 diamonds through out. The center stone was 1.25 carat. It looks amazing and as always I am surprised at the transformation.