I will show here all my natural pearls, a single thread will be easier.
Here is my first restring, 83 pearls, graduating from 3,7 to 7,6mm
The clasp is made from 2 pear shaped 6,5mm diamonds and 2 round to simulate a large marquise cut diamond.
Just one thing to keep in mind, for future reference, you can always alter the size of your knots by using different style knots to create more heft for the pearls with larger holes. I would think that preferable to filling them with super glue.