TASAKI Diamond 2-Way Necklace 10.48g 18K Gold

This is a K18 (18k gold) necklace from Tasaki Pearl, TASAKI.
I am listing this item because TASAKI has been included in the Anshin Kantei (Safe Appraisal) service. Please be sure to use the Anshin Kantei service.
If you do not use it, the order will be canceled.

When closed, it forms a hexagon with a snowflake pattern.
When open, it transforms into a flower and decorative pattern, offering multi-way styling with its magnetic mechanism.

The thickness is approximately the same as three 1-yen coins stacked together.
The size is between a 1-yen coin and a 100-yen coin.
The chain length is 50 cm and is adjustable with a slider.
The weight is 10.48g.
The diamond engraving is either 0.37 or 0.31.

The chain can be removed.
Both the main body and the chain have a crescent moon-like engraving from TASAKI.

This is an interesting piece made of 18k gold with a toy-like transforming gimmick, something rarely seen now that gold prices have soared. I hope it appeals to someone.

As shown in photo 7, there is a slight gap when hung in the closed state. (The magnet is in the 5th part from the main body, which is the part from 2 to 4 o'clock in the photo, so the 6th part from 12 to 2 o'clock floats slightly.)
There is some darkening on the magnet on the surrounding side, but the magnetic force has not diminished.

There is no warranty card.
My mother purchased or received this item, but she has passed away, so I do not know the purchase route.
It comes in a beautiful jewelry case, but for some reason, it has the store name Jewel Senga (I suspect it might be the long-established jewelry store Senga in the Tokai region) instead of TASAKI. I don't know if it was bought there, or if it was just a convenient case that was transferred.
According to online research, the crescent moon-like engraving indicates it is from 2008 or later, so it is at most 18 years old.

This item has finally become eligible for appraisal, allowing me to list it.

Material: K18 (18k gold)
Embellishment: Diamond