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How to Make Gemstone Cookies

Written by Mike Tamplin • Feb 23, 2016

How to Make Gemstone Cookies
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Lately, I have received a few requests to make gemstone cookie cutters, as well as various shapes for geometric-themed parties. I had no idea that geometric parties were even a thing until I looked them up on Pinterest. But I have to say I'm digging the clean, modern look of those geometric shapes. Now I can totally understand the appeal to theme parties after them.

Because gemstones and geometric shapes share a common likeness, I made a few cookie cutters that could be used for both themes. For this tutorial I'll focus on showing you how to recreate these super simple gemstone cookies using the cookie cutters below.  

Gemstone Cookie Cutters

If you head on over to my shop, you'll find six new cookie cutters:

Gemstone Cookie Cutters by Semi sweet Designs
  • Diamond Gemstone Cookie Cutter
  • Emerald Gemstone Cookie Cutter
  • Harlequin Gemstone Cookie Cutter
  • Marquise Gemstone Cookie Cutter
  • Pentagon Gemstone Cookie Cutter
  • Octagon Gemstone Cookie Cutter

Gemstone Cookies Template

The designs for these gemstone cookies are relatively easy, consisting of a web of simple lines. However, getting all the angles right can be tricky if attempted by freehand. To help guide you with the correct placement of all the lines I made a template for all six gemstones.

You can download the gemstone cookies template HERE.

If you have a Kopykake or Pico projector, just print it out (or pull it up on your mobile device) and you are good to go. For those without a projector, follow the suggested steps below by cutting out the template and tracing the design onto the cookie with an edible food marker.

How to Decorate Gemstone Cookies

There are many ways to decorate gemstone cookies. You could make them really simple, use just one color icing and call it good. However, if you want to add a little pizzazz to these gemstones cookies, I say bring out the airbrush! I'll show you how to add a nice shimmer effect to the overall gem with just a few waves of airbrush color.

You will need the following suggested colors:

  • White royal icing.
  • Amerimist Blue Sheen
  • Amerimist Pink Sheen mixed with a touch of Amerimist Deep Pink. (I found the Pink Sheen was too light on its own. Just add a drop of deep pink to 3 drops of the sheen directly in the airbrush cup.)
  • Gold tinted piping icing. (I used Rainbow Dust Pro-gel Caramel.)

Step 1

Begin by outlining and flooding the gemstone cookies with white royal icing. Leave these to dry completely before moving on. (About 8 hours or overnight.)

how to make gemstone cookies step 1

Step 2

Once the icing on the cookies have completely dried it's time to airbrush. With the pink sheen mixture, and light back and forth motions, airbrush a broad, angled stripe across the center of each cookie.

how to make gemstone cookies step 2

Step 3

Next, cover the remaining white space on the tops and bottoms with blue sheen airbrush color. It's okay to spray a slight overlap onto the pink color. The two colors should blend nicely. Let the airbrush color dry completely. (About an hour.)

If you find the color is still tacky to the touch after an hour, lightly dust the surface with cornstarch.

how to make gemstone cookies step 3

Step 4

With gold-tinted piping icing, outline and detail each gemstone design. Use the template I provided as a guide if needed. Let these lines dry completely before moving on.

how to make gemstone cookies step 4

Step 5

This step is optional, but I think it adds a nice touch of glitz. Paint on Imperial Gold luster dust over the gold lines. For a detailed description on how to create the gold mixture paint, visit my Boho Chic cookies post for the detailed instructions.

how to make gemstone cookies step 5

The finished gemstone cookies should look similar to the ones below. Here's a group shot of the diamond, emerald, and octagon cookies.

gemstone-cookies-plate-1

And here are the marquise, pentagon, and harlequin cookies together.

gemstone-cookies-plate-2

It was difficult to capture in the photos, but the pearl sheen airbrush color also adds additional shimmer to the surface of the cookies. The overall cookie is full of sparkle when the light hits it right.

How to make gemstone cookies by Semi Sweet Designs

If you have a request for a particular cookie cutter design or shape just let me know. I'll try to make it happen!

Tags:
Airbrushing

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