Summary
The amethyst buds and amethyst clusters on Java Edition emit a light level of 1, 2, and 4 for small, medium and large amethyst buds, and light level 5 for the clusters. However on Bedrock Edition, the light levels are off from what it is from Java. On Bedrock Edition, it has a light level of 0, 1, 3, and 4.

Step to Reproduce
1. Place down the amethyst buds (small to large) and the amethyst clusters.
2. Get a light block with a light level of 1 to 5.
3. Place it accordingly, based on the screenshots (small bud gives level 1, medium gives level 2, large gives level 4, cluster gives level 5)
4. Turn the smooth lighting off for better results.
---> The light level of the amethysts are incorrect.

Expected Results
Amethyst buds and clusters should emit light level 1, 2, 4, and 5 respectively.