The key to drawing a realistic diamond is to make it appear reflective and three-dimensional. Luckily, this is easy to do once you know what types of shapes and shadows to use. All you need to draw sparkling diamonds is a ruler, a piece of paper and a writing utensil to draw!
Step
Method 1 of 2: Using a Flat Trapezoid
Step 1. Draw a flat trapezoid
Make the top side of the trapezoid shorter than the bottom side. This trapezoid will become the crown, or top of the diamond.
Use a ruler to draw a flat trapezoid so the lines are straight
Step 2. Create an inverted triangle under the trapezoid
The bottom side of the trapezoid will be the base of the triangle. Try to make the corner at the bottom of the triangle measure 90 degrees.
Step 3. Draw a small and large triangle inside the trapezoid and an inverted triangle
This triangle will be the sides of the diamond. Try to make the triangles as symmetrical as possible to make the diamonds look more realistic.
We recommend using a ruler so that you can draw perfectly straight lines
Step 4. Shadow and highlight the diamond
Shadows and highlights will make it look like the diamond is reflecting light. Keep the corners of your diamond white and shade the rest with darker colors, such as blues and purples.
Method 2 of 2: Draw Diamonds with Heptagon
Step 1. Draw a heptagon (hexagon) with one elongated corner
The heptagon is a flat shape with seven sides, including one angle that extends away from the shape and forms an angle of 90 degrees. This angle will be the lower end of the diamond.
Try to make the heptagon symmetrical so the diamond looks realistic
Step 2. Fill the top of the heptagon with a series of triangles
These triangles will be the various sides of your diamond cut. They can vary in size and length, but try to keep them symmetrical.
Step 3. Draw 4 inverted triangles in the bottom corner of the heptagon
Make it so that the four triangles meet at the bottom corner. This will be the base side of the diamond.
To make the diamond appear 3D, make the triangles at the ends thinner than the triangles in the middle
Step 4. Create a 4-pointed star inside 2 circles as a sparkle on the diamond
Draw a star and circle at the top of the diamond. This trick will make the diamond appear to reflect light.
Step 5. Color the diamond
Keep the corners of the diamond white so that the diamond looks reflective. Then, shadow the rest of the diamond in gray or light blue.