Pearls created by nature possess an ineffable beauty, which has captured the hearts of our wearers since TASAKI’s founding in 1954.
Since its foundation, TASAKI has supported the creation of beautiful pearls,
operating pearl farms in the seas of Kujukushima at Nagasaki and Ise-Shima at Mie for Akoya Pearls,
and in the Andaman Sea bordering the Indian Ocean for South Sea Pearls.
All procedures, from farming, selecting and processing of pearls to the creation of innovative designs,
are done in-house to ensure the highest quality unique to TASAKI.
The fascinating brilliance of pearls reflects the sustainability of Nature’s infinite beauty.
Pearls are a living organism. Well, that is how we think of them at TASAKI. Pearls possess perfect shape and form without the need for polishing or cutting. TASAKI has worked to create an optimum environment for the production of this magical gemstone, one that can be created by oyster and man.
TASAKI handles each and every step of the production process from farming of the pearls in the nutrient-rich waters off Japan, selection and crafting by skilled craftsmen and sales to ensure that you receive only the finest quality TASAKI pearls.
The nature and craftsmanship of Japan. This is the key behind the quality of TASAKI pearls.
6 criteria used to determine the value of pearls
Since our foundation, TASAKI has employed stringent standards for the selection of pearls used in its jewelry range based on the 6 key criteria used to determine pearl quality.
Nacre quality: Nacre quality refers to the thickness of the nacre layer and is the most important factor in determining pearl quality. It is not possible to achieve beautiful interference color or luster without a nacre layer of a certain thickness.
Nacre quality, luster and color are closely related and in general a thicker nacre layer will produce a superior quality pearl in terms of luster and color. TASAKI pearls are all selected based on the nacre layer, the most important factor in determining pearl quality.
The brilliance of a pearl (the quality of light reflected from within the pearl itself) is referred to as luster.
|Surface brilliance||:||Light reflected from the surface of the pearl [gloss]
Example: When the surface of a pearl is eroded by sweat etc. and the gloss is diminished, it can be restored to a certain point by polishing
|Internal brilliance||:||Light reflected from the internal layers of the pearl. Light interference that occurs in pearls. This changes depending on the thickness of the nacre layer, conformity and optical transparency.|
|Luster = Internal brilliance = light interference
* These forms of brilliance coexist to produce pearl luster.
Although the color of pearls is largely determined by color interference, the color and luster share a reciprocal relationship in creating their characteristic color. These two factors have a complex effect on the pearl and play a large role in determining pearl quality.
Pearls are generally round gems and perfectly rounds pearls are superior in quality. However, pearls come in various shapes and there are also extremely unique and beautiful gems found in the tear drop or semi-round category.
Naturally a pearl with fewer blemishes will carry a higher value. The degree of blemishes occurring in pearls is broad, and can range from very small dimples to bumps and surface spots. TASAKI uses a grading system to select individual pearls based on their suitability for different jewelry lines.
Pearl size is measured in diameters and size is not directly related to nacre quality. Pearls are traded in terms of weight and because there is more demand for larger gems, when all other quality factors are the same, the larger gem will generally demand a higher price.
Akoya pearls, known in Japan as Japanese pearls, have been loved for centuries. These pearls are symbolic of Japan and are recognized around the world. Japan is a major producer of the Akoya pearl mollusk, which forms the mother shell and live in calm inner bay waters with a water temperature ranging between 15-25℃. They are known for their stunning and elegant luster created by the delicate colors of the multilayered nacre and come in colors ranging from silver, gold, cream, pink, green and blue etc. Their shape is generally round and come in a standard size of 6-8mm.
South Sea Pearls
Gold can be taken from the white butterfly shells. These shellfishare coloured with shiny gold on the inside, and unlike shells from other regions, the shell size is small but thick. The pearls produced from these shells produce pink and green iridescence that bring out the gold color further.
Pearls grown in this blessed natural environment have many thin, dense layers. Even when the pearl layers are thickly rolled up, there is transparency, and both beauty and volume are achieved.
South Sea Pearls
South Sea pearl mollusks are the largest among all pearl oysters, growing up to 20-30cm in size and are restricted to warm tropical waters, such as those off the coast of Australia. A lot of South Sea pearls grow larger than 10mm in diameter and approximately 90% of all white pearls are produced in Australia and Indonesia. They have a thick nacre layer and are popular for their bright, opulent colors, including silver, white, pink and gold etc.
Tahitian pearl oysters are found in a wide number of areas in waters ranging from sub-tropical to warm water with main production areas including Micronesia, Polynesia, and Tahiti in particular. The deep coloration of Tahitian pearls, including black, green, blue and brown hues etc. and a variety of shapes, such as tear drops and baroque give them a unique charm. In particular, peacock green Tahitian pearls, colored with a stunning black-green hue like a peacock’s tail, are highly sought after for their dark and mysterious luster and rare nature.
Mabe pearls are voluminous semi-spherical pearls ranging in sizes from 10-20mm. The TASAKI Mabe pearls are known around the world for their colorful and vivid, rainbow-like hues. The population of Mabe pearl oysters, which form the mother shell, was dwindling and up until TASAKI succeeded in developing breeding techniques and started farming the oyster in 1970, the Mabe pearl was known as the ‘phantom pearl’ for its extraordinary rare beauty and scarcity. Mabe pearls differ from normal pearls in that a semi-circular nucleus is inserted flush against the side of the mollusk, causing the oyster to form its nacre deposits over the nucleus and against the side of the shell, forming a semi-spherical pearl.
Quality Mabe pearls have a uniquely beautiful nacre quality and a strong, penetrating luster. In addition to the rainbow-like colors, blue and brownish colors are also popular and various shapes can be achieved, including tear drops and hearts, by altering the shape of the nucleus. The characteristic flat bottom of the pearls create a snug fit, especially when set into larger designs.
Today, nearly all of the freshwater mussels used to produce freshwater pearls are farmed in China. Freshwater pearls have a good nacre layer and can be found in a large variety of shapes, including oval, tear drop, button and round etc. Sizes range from 2-10mm and they come in a range of different colors. Freshwater pearls have gained in popularity as they are relatively reasonably priced and can be used in a variety of jewelry designs.
The term ‘baroque’ comes from slang, barroco, used by Portuguese pearl merchants to describe an irregular shaped pearl. The term today is used to describe groups of pearls that fall outside the normal spherical pearl shape and can include tear drop, egg, button and all other irregular shapes, excluding semi-round. Baroque is not a type of pearl, but rather refers to the shape, therefore baroque pearls can be found in all other pearl varieties, including Akoya pearls, and there are a lot of creative and innovative pieces of jewelry that harness the unique characteristics of baroque pearls. The term ‘Baroque Style’ describing a style of art emphasizing elaborate ornamentation, which came about following the Renaissance period is derived from baroque pearls.