This delightful Valentine, made in Italy is nearly an inch each way and the middle dangle is 3/4 inch long and it shows no sign of damage. Chain is 24 inche with a spring clasp.
Manufacturer: Italian  

Very finely crafted mosaic pieces here feature blue with some red accents and all the pieces are still there! 5 drops, 4 side pieces and center piece that is over an inch long. Spring clasp, measures 16 inches, counting across, the featured pendant and rest nicely on collarbones.

Manufacturer: Italian  

Someone probably bought this on a trip to Italy though it is not marked. The pretty greens and reds with a touch of orange are all there though a bit uneven in spots. The gold finish shows no wear and it has a wide hook clasp.
5 curved, hinged pieces - measures 7 1/4.
Manufacturer: Italy  

I don't know my stringed insturments very well but this looks like a guitar. It is in perfect condition with small pieces which might make it petite rather than micro. 2 1/2 inches long with C clasp. oops. it's mandolin.
Manufacturer: Italy  

These darling little earrings are for pierced ears so more recent. They measure 1/2 inch across and have 3 light blue forget-me-nots on a pale yellow or creamy background.
Manufacturer: Italy  

This lovely Italian made mosaic pendant is a bit over 1 inch long and 7/8 in wide with a twisted rope edge and a 24 twisted chain with spring clasp. Deep sea blue-green with colorful roses and sweet forget-me-not.

Manufacturer: Italy  

The blooming flowers (leaves too) of this oval pin are popping up out of a red background. There are large roselike flowers and but I love the tiny blossoms of pink and orange. 1 3/8 by 1 inch.
Manufacturer: Italy  

This old Italian-made mosaic pendant is finely made with the traditional roses and tiny little flowers in the center. It is set in silver but not marked sterling and measures 1 1/8 inch in diameter. Chain is not original but has a matching patina and is also marked Italy - but not sterling. Mosiac is flawless. See matching pin,9894 and matching earrings,9869 - $90 for all 3.
Manufacturer: Italy  

This lovely old pin is truly micromosaic - is there such a thing as nanomosaic? There are 2 or 3 tiny open spots, seen only with loupe, I I can't tell if they are missing a tiny piece or if there was no room to get the glass in. 1 1/2 by 1/2 with fine workmanship.
Manufacturer: Italy?  

Lovely old mosaic clip earrings with silver filigree. Colors of red, orange and white for roses and green on leaves with black background. Image 3 shows earrings with matching pin, #9894. #9865 is a pendant that matches also. All 3 for $90.
Manufacturer: Italy  

What a cute little guy! 1 1/8 inch oval and a mere 7/8 inch across. Fancy sides and flawless, tightly fitted mosaic.
Manufacturer: Italy  

You could maybe call this micromosaic or at least mini though it is newer than the old Victorian work. Tiny little leaves and flowers are framed with red, all tightly fitted and undamaged. Flower between legs is a little deeper - probably where they finished the circle.
Manufacturer: Italy?  

Black background is setting for this mosaic pin with colorful roses. Silver filgree sets off a 1 1/4 x 1 1/8 inch oval. Stamped Italy, safety pin closing, some wear to silver on the back. Matching earrings, 9869, pendant 9865, all 3 for $90.
Manufacturer: Italy  

I guess you would call that inner half circle a swag - or crescent? Whatever, I think it is unique and striking. Outer circle measures 1 inch diameter and crescent is 1/2 at tips. The clip displays the crescent upward so I guess it in a half circle inside a circle. I believe it qualifies as micromosaic and no damage.
No marks.
Manufacturer: Italy?  

Substantial might be the word to describe this mosaic bracelet made up of 4 large curved pieces - and condition is excellent, even the metal finish. Just right for larger wrist because of scale and 7 1/2 inch length.
Back view shows unusual hook clasp.
Manufacturer: Italy?