Preparation materials: drawing paper and watercolor pen.

1. Draw a hexagon first, and then draw the outline of the whole gem. The basic shape of the gem comes out.

2. Then draw the dividing face of the diamond with two line segments, and pay attention to the fact that the three faces are almost the same size when drawing, so that the gem will be more beautiful.

3. Cut three inverted triangles on the gem with three line segments, so that the shape of the gem is completed.

4. Finally, color the gem, with a layer of light blue on the top, a layer of dark blue in the middle of the lower part of the gem, and blue on the side. Draw lines in yellow to decorate, and a gem is finished.

The above is the painting method of precious stones.

Jewelry refers to stones or minerals that can meet the requirements of jewelry after grinding and polishing. This precious ore is bright in color and high in hardness, and will not change under the action of atmosphere and chemicals. Can be used as instrument bearings, abrasives, decorations, etc. It also refers to precious stones.

In a broad sense, gemstones are indistinguishable from jade. Generally, gemstones refer to minerals or rocks with magnificent colors, hardness, durability and rarity, which can be polished and carved into jewelry and handicrafts, including natural and synthetic materials and some organic materials.

In a narrow sense, there are two concepts: gem and jade. Gem refers to the single crystal or double crystal with magnificent color, crystal clear, hard, durable and rare, which can be polished into gem jewelry, including natural and synthetic, such as diamonds and sapphires. Jade refers to mineral aggregates or rocks with magnificent colors, hardness, durability and rarity, which can be polished and carved into jewelry and handicrafts, such as jadeite, nephrite, dushan jade and jade, both natural and synthetic.