Pearl Education

You have probably seen those photos of beautiful pearls that have been "cut in half" so you can see their inner structure, and you probably wondered how those are worked: are they sawed off? maybe a machete?


Well, wonder no more! This little video explains in detail how you can make your very own, very nice...pearls in half.

You will need:
Sandpaper sheets, one of each: 60 (very rough), 80 (medium grit) and 220 (fine grit, also called "water sandpaper").
Scissors
A small container...

In a sense, pearl oysters might be a “small ecosystem” of their own, a self-contained biome where a tug of war ensues and leads to eventual stability. But why does this happen? And does it hurt the mollusk? One of my Marine Biology teachers -Dr Fernando Manrique, a friend of Jacques Cousteau- once told us that the Ocean was teeming with Life, and that the hardest thing for many lifeforms to find was an “available apartment”, a place to settle and that would help them avoid being tossed...

Part of the beauty of a Mabe pearl comes from its “dome” (height). When a Mabe pearl displays a low dome it most closely resembles a piece of mother-of-pearl shell than an actual pearl. Unfortunately, many Mabe pearls today are grown too flat, due to the intrinsic characteristic of the host shell: Pinctada shells are usually flatter than Pteria shells (the shells being much more concave) which does not allow for the use of tall implants, since these will touch the opposite shell and will...

The most important factor here is nacre thickness. Many Mabe are cultured for short periods of time (4 months) to obtain the most perfect shape, but at the expense of their nacre thickness and durability.

On the other hand, there are producers that grown them for too long (over 12 months) and end up having pearls that have thick nacre, but their shapes are not standardized, and they may display one or more of the surface imperfections we discussed in the previous paragraph.

There is...

As with other pearls, surface quality is an important attribute: the cleaner the surface is, the more desirable the Mabe is and more valuable too. The usual surface imperfections found in these are:

• Missing Nacre: whitish, bite shaped marks.
• Spots, pinpricks: dark or light-colored pin-prick markings.
• Rippled surface: these are markings caused by the growth of the abductor muscle on top of the blister pearl. This marking causes the appearance of wavy patterns, lower luster, and even...

Mabe pearls are not very known for their great luster, although many of these pearls may display amazing luster. Mabe usually display a more silky or subdued luster, especially in the Pinctada species and is most shiny in the Pteria species…but luster is usually enhanced by means of a final polishing, done with a high-speed cloth-wheel and a polishing compound, although much care must be taken to avoid excessive polishing that leads to heat and may ultimately damage the pearls by “burning”...