I made these designs using Tinkercad.

Now, to start with you need the earring shape you want in the size you want. In my example, we are doing the diamond which was 1" wide and 2" tall. The thickness isn't as important right now as you can change it whenever you want.

Take this shape and make it a hole. Also, make a large square. It doesn't have to be a certain size, just large enough that it can cut off the ends of your rectangles later, but mine is 4" by 4". Make it solid.

Line the shapes up so the cutout is in the center and group them.

Now you have the earring shape.

Turn it into a hole.

Time for the rectangles.

So, this design evolved over time, but in the end, I ended up with an earring design that consisted of rectangles that are the same length and width but different heights. I split the rectangles up into 5 heights and decided they would be two different colors (depending on layer height).

The plan was that the 1st, 3rd, and 5th layers to be one color and the 2nd and 4th layers to be another. Meaning, I needed the same number of rectangles split between layers 1,3,5 and 2,4.

To make sure my color coverage was good, I colored the layers so I could see where the colors would show up and where they would be overlapped and covered.

My goal was for each color to be 2 layers when sliced, meaning the first color went up 2 layers, the second color showed up 4 layers, third was 6 layers, forth was 8 layers and fifth was 10 layers.

Layers/Rectangles: (18 total with 9 of each color) below is # of rectangles, which color, and height

3 - color 1 - .5 mm 5 - color 2 - .9 mm 3 - color 1 - 1.3 mm 4 - color 2 - 1.7 mm 3 - color 1 - 2.1 mm

This is probably confusing, but the design changed so it's a little difficult to explain how to go from the image above to the one below.

The goal was to make sure the colors were spaced well enough that you could see about an equal amount of each. I started with each color a different layer so I could see where everything was.

Then, I checked everything by coloring the layers appropriately. So 1, 3, and 5 one color with 2 and 4 another color.

From here, I moved rectangles around until I was happy with the layout. Pay attention to how much of each color you can see and how the edges of the shape look. You want to try to avoid huge gaps that detract from the shape. For example, I tried to make sure the rectangles went out at the diamond points so I would have that definition. Also, make sure you have some definition at the top so you'll be able to attach the loop.

Group the rectangles and the shape cutout. If you don't like the look, ungroup and keep moving things around.

The last thing to do is add a loop. When I can, I prefer to add a hole into the design to make it look more natural, but the thinness of these lines didn't allow it. So, I added on a loop that was made from a cylinder that was 2.68mm in diameter and had a hole that was 1.50mm in diameter.

I made sure everything was centered and connected, then I grouped them.

To finish off your earrings, I recommend, copying it and mirroring it. I prefer this to two earrings the same, but it's a personal preference.

Now you have a set of earrings. You can repeat this process for any shape you'd like.