OUR STORY

Perlas del Cortez is a society, which aims to  culture  pearl oysters; Concha Nacar Pteria sterna and mother of Pearl Pinctada mazatlanica, in the Bay of La Paz, Baja California Sur, Mexico, to produce free pearls, Pearl mabes, shells, buttons, and other derivatives, within  the highest quality, to be competitive in the national and international market standards. The mission includes carrying out research and communication which are relevant for the development of the company and contribute to the progress of our State and Country..

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Our products are available in Casa del Artesano in the City of La Paz, Baja California Sur, México. Please visit our collection site.

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The Half pearls.

 

These are natural half pearls (mabés) which we have been culturing for three years before being mounted in hand made jewelry.  Aquaculturists from “Perlas del Cortez”, have worked carefully and hard to make the best product.

Mabés are formed in a Mexican pearl oyster called “Concha Nácar” or Pteria sterna.   

      

All the mabés produced are authentic and original pieces from “Baja California Sur”.

 

The growth area is located in the extraordinary “Bay of La Paz” where the wealth of its water and oceanographic characteristics have historically made it possible to produce pearls of the best quality.

 

How this miracle happens

 

The birth of a pearl is a really miraculous event. The pearls grow inside of live oysters in the sea. The beautiful pearls or half pearls, must be taken out and do not need to be polished to show off their beauty.

 

The birth of a pearl is a really miraculous event.

 

A natural pearl begins its life as a strange object. For example, a parasite or anything that accidentally lodges in the oyster’s internal body (and will not have the possibility of its elimination), begins a defensive action. The oyster secretes a fine crystalline substance around the irritant to protect itself. This substance is called nacre. The oyster will continue secreting nacre around the object, in successive layers. Through time, the irritant will be totally covered by the crystalline layers. The final result is the charming and lustrous gem called ”Pearl”.

The nacre is made up of microscopic crystals of calcium carbonate that are aligned perfectly so the light it receives is reflected and refracted to produce a rainbow of light and color.

Cultured pearls and natural pearls have the same properties. The only difference is that a person carefully grafts an irritant inside the cultured oyster, instead of leaving it to nature.

 

Aquaculturists from “Perlas del Cortez” then leave nature to create its miracle

             

The culture technique used is friendly with environment, consisting in the extensive type, offering protection against predators using suspended plastic cages. The practice of culture consists in the following stages:

 

Seed Collection; 10 to 15 mm high juvenile collection.

 

The collectionof juvenils is taken place in spring, and consists in: The use of plastic cages filled with plastic mesh, tied up in groups of 5 to  long-line of culture, tree months later the cages are recovered form the sea, and the manual separation of seeds from the collectors began. The collection is realized in the long-lines in front of the Gaviota Island, in La Paz Bay. Only the necessary number of collectors are placed on the long-lines to avoid the seed capture above the capacity of the project. The seeds  are not transferred, they are sown in the same collection site.

 

Pregrowing, 15-45 mm high sub-adults.

 

The separated seeds are placed in 8 mm (nominal size) triangular cages being around 500 animals per unit, the cages are tied up to the long-line in series of 5, the maintenance consists in every fourth month cleaning.

 

Growth, 45-70 mm high organisms.

 

The juveniles are separated and placed in 16 mm (nominal size) triangular cages, similar to the former stage, the density of culture is 250, 125, 100 and 50 organisms per cage in changes of every 3 months.The organisms of 60-80 mm high (18 months of culture) are manually cleaned, and separated to be transferred to the plant on the ground for the implantation following the techniques established by the company. Once the organisms are implanted, they’re placed in cages being 40 individuals per unit, the maintenance is done every three months.

 

Culture organization.

 

The long-lines consist in: A polypropylene rope, 80 m long, with an articulated and protected ends. This line is joined in both tips to an anchorage system that consists of a secured line of 30 m long, fixed to a  chain 10 m long, made of steel also joined with a shackle to an anchor Danforth type to 40 ton, buried into the sediment.

The culture cages consist in: A 0.45 m base, 0.3 m high and 1 m long plastic mesh triangle even 8 or 16 mm (nominal size), the joints are made with  Nylon tarmac thread. The triangles are crossed through the vertex by a  PVC tube tied up to  ropes to be held to the long-line like swings. Every swing or unit consists in 5 triangles in a series. The collectors are installed to the long lines at the same site. The used culture structures are:

Pregrowth triangles, 50 units

Growth triangles, 2,000 units

The long-lines are: 4 lines. On the surface, the culture sets only will show the supporting floats set every 40 lineal meters, each one. The area that the culture installation occupies is 32,000 square metrers in a rectangle of 180 X 200 m, where every culture line occupies 180 lineal meters in surface and has a separation of 50 m with the other line to allow navigation and operation handlings.