Buy Perla Pietre preziose

(90)

Tipo di gemma

Colore

Unico

Coppie

Lotti

Sfaccettato

Taglio a cabochon

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About Pearl

Pearls are products of bivalve mollusks (mainly oysters and mussels). They are built up of nacre (mother-of-pearl), which is mainly calcium carbonate in the form of aragonite crystals, and an organic horn substance known as conchiolin that binds the microcrystals concentrically around an irritant. Although pearls are not especially hard, only about 2.5 to 4.5 on the Mohs scale, they are extraordinarily compact and very difficult to crush.

The typical pearly luster is produced by the overlapping platelets of aragonite and film of conchiolin nearest to the pearl surface. The color of pearl varies with the type of mollusk and the water, and is dependent on the color of the upper conchiolin layer. Pearls may be natural (occurring without human intervention) or cultured; and they may occur in the ocean or in freshwater.

Recensioni dei clienti verificati

Valutazione complessiva -> 10

When I could not find a good matched pair, Customer Service (Thomas Dahlberg) responded with a selection of beautiful singles, which I also needed, and I found just the right stone for my ring. This means he actually read my email! So unusual these days. So very welcome.

Pubblicato da Miramar in July, 2020

Fonte: Bizrate

Valutazione complessiva -> 9

Really disappointed with the limited amount of options that you offer for 3mm-4mm round faceted stones....There were NO Blue Topaz or Amethysts.

Pubblicato da SB in July, 2020

Fonte: Bizrate

Valutazione complessiva -> 10

Excellent! I only shop with GemSelect. My wife thanks you!

Pubblicato da LesterHammond in July, 2020

Fonte: Bizrate

Valutazione complessiva -> 10

The sight has a great selection of stones at a variety of price points. It was easy for me to find affordable stones for gem identification practice as well as some fun pieces for my collection. Very happy with GemSelect!

Pubblicato da Mary in July, 2020

Fonte: Bizrate

Valutazione complessiva -> 10

I love GemSelect, they've always been my source for gemstones for any reason. I wouldn't bother even looking anywhere else.

Pubblicato da Zutono in July, 2020

Fonte: Bizrate

Valutazione complessiva -> 10

Very good I like alot

Pubblicato da Superfllipino in July, 2020

Fonte: Bizrate

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