The wood (walnut, purpleheart, and yellowheart) is glued up for the feature ring.

3/4" strips are cut at a 45˚ angle on the table saw using a miter jig.

The strips are glued back together, flipping every other strip to get a zigzag design.

That board was then cut at a 20˚ angle. Note...these are not glued together.

Here are the same strips, every other one flipped. Note...these are still not glued.

The ends are trimmed. The edges of these need to be cut at 11.25˚ (16 sided polygon) to make the ring. yes..there are 18 pieces...not 16. Helps to have a couple of extra just in case.

This is the table saw jig used to cut the miters.

Here's the jig with the one of the strips clamped in. Now it gets cut.

The mitered strips are glued up into a ring.

Here's another table saw jig for cutting segments. This one is set for 7.5˚ to cut segments for a 24-segment ring.

Some of the segments are cut using a miter saw.

The other segments are cut and glued up in half-rings, with dowel separators.

The half rings are trued up using a disc sander.

The half rings are glued together to get full rings.

A glue block has been attached to a faceplate and the base ring is glued to it.

A Longworth-style centering chuck is attached to the tailstock and used to center the next ring. 

The ring is glued to the base.

The other rings are successively glued.

The exterior and interior are rough turned.

The final two rings have been glued on, turned, sanded, and a finish applied.

Finished vase.