Earrings made of Amethyst, blue crystal, Green Aventurine, and mother of pearl would be a unique and striking piece of jewelry that combines natural materials and contrasting colors. 
The blue crystal would likely form the centerpiece of the design. The amethyst and Green Aventurine would be used to frame the blue crystal flower, creating a halo effect that would add depth and dimension to the design. The blue crystal would add a cool and calming element to the earring, with its translucent surface adding a touch of shimmer and shine. The Green Aventurine would add a natural and earthy element to the design, with its vibrant green color and unique texture creating a sense of balance and grounding. 
This earring would be a versatile and timeless addition to any jewelry collection, suitable for a wide range of occasions and outfits.
These earrings make a great gift for anyone who loves the beauty of natural elements and unique jewelry. They come in a small gift box, ready to be presented to someone special.