How do I tell the quality for these?

[dloh007]

Please tell me how these are and how to do you discern the qualities.. newbie here..

 

[Pearl Dreams]

Too little information.
Are these pearls you are considering buying? What are you being told they are?
What are their dimensions?
Are there 2 pairs (one gold, one white), or 4?
What is the color of the background-- is it actually blue/green, or is the color of the photos "off"?

It's a little hard to tell what is dust and what is blemishes on the white pearls.
The yellow pearls could be dyed--were you told their color is natural?