Our precious stones

The Diamond

Diamond is the most special of all gems. This gemstone represents, in many ways, perfection, the hardest material on Earth - 58 times harder than the element that follows it....

The Sapphire

Sapphire is one of the most valuable and prized gems. It is a rare gemstone found in nature, of great hardness and an intense and silky blue color, although sapphires...

The Aquamarine

Aiguamarina is a variety of beryl that is characterized by its soft and crystalline light blue-green color and that, since ancient times, has evoked the image of the transparent water...

The Emerald

The Emerald is a variety of beryl that is characterized by its intense green color, which evokes the image of a dense forest cradled by the wind. The color green...

The Tourmaline

Tourmaline is one of the most popular gems thanks to the fact that it can acquire virtually any color of nature, from almost absolute transparency to opaque black, even presenting...

The Ruby

Ruby is one of the most valuable and prized gems. It is a rare gemstone found in nature, of great hardness and an intense and silky red color, characteristics that...

Our gems

 

 

Our precious stones

 

Garnet Peridot Pink quartz Topaz
Sapphire Aquamarine Citrus Smoky quartz
Spinel Tourmaline Emerald Amethyst
Tsavorita Tanzanite Ruby Diamond

 

 


 

Garnet

The name "garnet" comes from the Latin "granatus", given its similarity to the shape and color of the pomegranate fruit. It is considered a very energizing and regenerating gem, related to love and devotion.

Although garnet can be found in a wide variety of colors -yellow, orange, coffee, black, etc.-, it is the ruby ​​red color that has given more popularity to this gem, which was terribly fashionable during the 18th and 19th centuries in Europe -starring many Victorian jewels-. Some garnets have their own names, such as rhodolite -red-lilac- or tsavorite -of an intense green-.

It is a stone that can last a long time thanks to its hardness, which allows, at the same time, that it can be cut in a great diversity of forms, becoming one of the most appreciated precious stones in jewelry. Most garnets come from Brazil, Sri Lanka, Tanzania, Namibia, Afghanistan or Myanmar, among others.

 

Back to the menu

Technical information

 

Color: All colors
Moh's hardness: 6.5 a 7.5
Chemical composition: Variable according to the different groups of garnets

 

Jewelry with garnets

 

 

Peridot

 

The name probably derives from the Arabic word Faridat (Jewel), commonly the name of Oliví has ​​also been used due to its olive green color. The ancient Egyptians called it "the jewel of the sun"; in fact, it is said to have been Cleopatra’s favorite gemstone.

The peridot is one of the few "idiochromatic" gems, meaning that they are always in the same color in nature, unlike most gems, which take on different colors depending on the secondary substances and the minor impurities present in the ore. It is lemon green in color and is characterized by its oily and bright appearance, similar to that of glass. The deposits are found in Australia, Burma, Zabargad, Arizona, Norway, Sri Lanka Mexico, Kenya and Tanzania.
 
 

Back to the menu

Technical information

Technical information

 

Color: Green
Moh's hardness: 6.5 a 7
Chemical composition: Mg,Fe2+[SiO4] / Magnesium iron silicate

 

Jewelry with peridots

 

 

Pink quartz

The name has come down to us through the German word "Twarc", with which it was called veins with gems (often populated with quartz). Rose quartz in particular gets this hue due to its phosphorus composition and is associated with unconditional love and peace.

This variety of quartz - a very common mineral in the earth's crust - is often cracked, as it is generally a bit cloudy, although it has a hardness that makes it durable. The luster and transparency that has made it appreciated in jewelry since ancient times given the pink tones, which add connotations of tenderness and sweetness to any jewelry. The deposits are in Brazil and Madagascar.

 
 

Back to the menu

Technical information

 

Color: Pale pink and pink
Moh's hardness: 7
Chemical composition: SiO2 / Silicon dioxide

 

Jewelry with rose quartz

 

 

Topaz

Its name comes from Zebirget Island, the ancient island of Topazos, in the Red Sea. Topazes come in a wide range of colors: green, yellow, red, pink, gold ... depending on the variation of iron and chromium in their chemical composition. The blue ones are without a doubt the most popular color of this gemstone. They enjoy different shades: the lightest is called Sky, the sky is called Swiss and the darkest, a navy blue, is London.

Topaz is one of the most valued stones. Its high refraction of light, gives it a great brightness. It is a very hard gem, but it needs to be protected from blows because it can split in one go. However, it is difficult to find: some of the most important deposits are found in England (Cornwall), Scotland and Northern Ireland.

 

Back to the menu

Technical information

 

Color: Colorless, yellow, orange, blue, pink, violet and light green
Moh's hardness: 8
Chemical composition: Al2 [(F,OH)2[SiO4] / Fluorine containing aluminum silicate

 

Jewelry with Topaz

 

 

Sapphire

Sapphire is one of the most important gems. Its rarity, hardness and, above all, its silky blue color, make this gem one of the most valuable and appreciated. Its iconic blue gives it its name and we can trace its origin to the Greek word "Sappheiros", which referred to the lapis lazuli. Still you can find practice sapphires in all colors, grouped in so-called "fantasy sapphires". The only color that escapes the wide range of sapphires is ruby red. It has other very distinctive features, the main one would be its reflection of light, intense, changing and magical, from blue to purple depending on the types of light. On the other hand in the sapphires the phenomenon of the asterism also occurs, causing that, sometimes, the inclusions of the gem form landlords in the form of luminous stars, being one of the most famous examples the "Star of India".

They have always been much appreciated by the upper classes, but especially by the clergy, as the blue of the sapphire evoked an image of the sky, it was a symbol of the soul itself and what was expected of it: fidelity, nobility and sincerity. . A very special gem that is linked to the month of September.

 

Back to the menu

Learn more

 

Color: All colors except red
Ethical origin: Myanmar / Kashmir / Sri Lanka / Australia / Thailand / USA…
Associated month: September
Moh's hardness: 9
Jewelry care: Very suitable for everyday use as it withstands blows well. Although it tolerates chemicals well, we recommend the use of warm soapy water and a soft brush for cleaning.

 

Jewelry with Sapphire

 

 

Aquamarine

Aquamarine is a variety of beryl that is characterized by its soft and crystalline light blue-green color, which evokes the image of the transparent water of a calm sea. The origin of its name comes precisely from the Latin "Aqua Marina", "Seawater". It has always been a gem much appreciated by sailors, who attributed to the gem the ability to calm the waters. Interestingly, aquamarines are formed at great heights, where they are extracted in large fragments compared to other precious stones - we have the example of the 36 cm obelisk made in fancy carving by Berndt Munsteiner. A poetic and evocative contrast between sea and mountain, sky and water.

Its coloring agent is iron, a generator of the soft blue hue that makes the gem have an almost white reflection and sometimes the characteristic six-pointed star shape. It is the characteristic gem of the month of March and, historically, powers of protection have been attributed to those who wear it in the face of a conflict or a challenge, such as that of sailors throwing themselves into the sea.

 

Back to the menu

Learn more

 

Color: Light blue-green
Ethical origin: USA / Brazil / Madagascar / Kenya / Pakistan…
Associated month: March
Moh's hardness: 7.5 to 8
Jewelry care: Suitable for everyday use, it withstands small bumps well. We recommend the use of warm water, soap and a soft brush for cleaning.

 

Jewelry with Aquamarine

 

 

Citrí

From the French "citron", which means lemon, citrine is a yellow gem of the quartz family. It can acquire a wide range of shades, from a very pale yellow to colors such as orange coffee and even gold; as well as very diverse sizes. The agent that gives it color is iron.

In antiquity the planet Mercury was associated, and in the Middle Ages citrine was considered a talisman against skin problems; today it is a stepping stone to success and prosperity. Natural citrines are rare and most commercial citrines are heat-treated amethysts. All Roosik & Co gemstones are natural, untreated, we buy citrine in warehouses in Spain, Brazil and the United States.

 

Back to the menu

Technical information

 

Color: Light yellow to dark and golden-brown
Moh's hardness: 7
Chemical composition: SiO2 / Silicon dioxide

 

Jewelry with Citrine

 

 

Smoky quartz

Pink or smoky quartz, lilac amethyst, green amethyst, citrine… These are gems that share a great similarity in their chemical composition and, together, make up the so-called quartz group. Quartz is pure silica, a chemical compound found in 60% of the earth's crust in multiple ways, such as in rocks, rocks and sands. The darkest, smoky quartz, obtains this chromatism thanks to its exposure to temperatures between 300º and 400º.

The elegant and sober smoky shades of brown or gray are what characterize smoky quartz. It is curious to know that the traditional Scottish kilts were closed with needles adorned with smoky quartz. It encourages concentration and positive thinking.

 

Back to the menu

Technical information

 

Color: Brown
Moh's hardness: 7
Chemical composition: SiO2 / Silicon dioxide

 

Jewelry with smoky quartz

 

 

Spinach

Spinach is a very special stone and we find it in a wide variety of beautiful pastel tones that make it very desirable: pink, purple, oranges, yellowish, red, blue ... In mineralogy, spinel classifies a whole group of Realistic minerals, only a dew is of gemstone quality, and they are the ones that Roosik & Co selects for their jewelry. The agents for painting are iron, chromium, vanadium and cobalt. Large stones are rare.

Throughout history, this stone has been confused with many other gems. This is the case of the "Robin of the Black Prince", embedded in the crown of England, or the "Robin of Tamerlane" of 361 carats, being finally red spinels and not rubies. What differentiates a spinel from a ruby ​​is its refraction: single, in the spinel, and double, in the case of the ruby. It is a gem with a high Mohs hardness index: 8 out of 10. The largest spinels in the world reach 520 carats and are on display at the British Museum in London.

 

Back to the menu

Technical information

 

Color: Violet, purple, red and orange
Moh's hardness: 8
Chemical composition: MgAl2O4 / Edible aluminum oxide

 

Jewelry with Spinel

 

 

Tourmaline

Tourmalines can acquire virtually any color of nature, even presenting mixtures of colors. This is where its name comes from, as we can trace the origin of the word to the Cicada "Touramalli", "Stone of mixed colors". This explosion of colors has led her to relate to open people of character and artistic abilities. It has always been highly regarded and sought after, but it is not only its aesthetics that have attracted attention. From the antiquity it has been related to magical and spiritual concepts, attributing to him curative / protective properties and the capacity to grant confidence and courage - in blue / green tones or love and kindness - in clearer and pink tones.

The color versatility of tourmaline has been the source of multiple confusions with other gems. Although tourmalines have very distinctive characteristics, the main one would be their greater clarity, which helps to reflect light and produces the effect of being changing color depending on how you look at it, with a captivating variability.

 

Back to the menu

Learn more

 

Color: Colorless, pink, red, yellow, green, blue, violet, black and multicolored
Ethical origin: USA / Afghanistan / Pakistan / Brazil / Kenya / Madagascar…
Associated month: October
Moh's hardness: 7 to 7.5
Jewelry care: Hardness suitable for daily use. It withstands light and chemicals well, although exposure to high temperatures can damage them. Clean with warm water, soap and a soft brush.

 

Jewelry with Tourmaline

 

 

Emerald

The Emerald is a variety of beryl that is characterized by its particular intense green color. It is precisely its color that has given it its name, as we can trace its origin to the Greek word "Smaragdos", which means "green gem". Its powerful green color, as well as its brilliance -product of the usual inclusions and its crystallization-, evoke nature better than any other precious stone, the emerald thus becomes the perfect gem for the month of May, month of the spring rebirth.

The admiration felt for the emerald in Ancient Egypt is well known, for example Cleopatra and her court, where not only was her beauty valued but also a symbolic power was presumed. Throughout history she has been credited with the ability to help see the truth — for example, of a lover’s oath — or to make the person who carries it more cunning and eloquent. No doubt the fact that the color green helps relieve nerves and fatigue will have helped more than one person to make better decisions ...

 

Back to the menu

Lear more

 

Color: Green
Ethical origin: Colombia / Brazil / Zambia / Afghanistan / Pakistan…
Associated month: May
Moh's hardness: 9
Jewelry care: Suitable for everyday use, although care must be taken to avoid high temperatures, aggressive chemicals or sudden changes in pressure (such as flying in an airplane). We recommend the use of warm water, soap and a soft brush for cleaning.

 

Jewelry with Emerald

 

 

Amethyst

Amethyst is a variety of quartz known for its characteristic violet color, which can be more or less dark. It is a gem that was already worked in jewelry in the days of Ancient Egypt and has been assimilated to power: it was one of the favorites of Catherine the Great of Russia and is often worn in rings by many bishops and cardinals.

Green amethyst belongs to the quartz group and was christened Prasiolita, which means "precious green mineral" in Portuguese. It is obtained from the calcination at 500º of yellow quartz stones or violet amethysts. It is a gem that provides protection, vitality, balance and sensitivity. It fosters intuition, feelings and self-values. It is located in the Montesuma depot in Minas Geriasm, Brazil.

 

Back to the menu

Technical information

 

Color: Purple, violet, green and colorless
Moh's hardness: 7
Chemical composition: SiO2 / Silicon dioxide

 

Jewelry with Amethyst

 

 

Tsavorita

El Robí és una de les gemmes més importants. La seva raresa, duresa i, sobretot, el seu característic i sedós color vermell, fan d’aquesta gemma una de les més valuoses i apreciades. Són precisament les seves característiques cromàtiques les que li donen nom, ja que podem remuntar l’origen de la paraula al llatí “Ruber, que vol dir “Vermell”. Un color vermell que pot arribar a ser fluorescent depenent de la quantitat de crom que contingui el robí: augmentant la seva brillantor i reforçant la imatge clàssica que se'n tenia a l’antiguitat d’una gemma que guardava una flama presonera en el seu interior.

Històricament ha estat vinculat sobretot amb el poder i la sang, és considerada la pedra de la vida mateixa -els guerrers birmans de Mogok, per exemple, se'ls incrustaven al cos per aconseguir protecció i poders-. És la pedra del mes de juliol i se la vincula amb poders materials -riqueses- i físics -energia juvenil-, una gemma d'extrems, que representa l'amor i la força, la passió i la fúria, la prohibició i el desig...

 

Tornar al menú

Aprèn més

 

Color: Vermell
Origen ètic: Myanmar / Vietnam / Tailandia / Camboya / Afganistan / Pakistan…
Mes associat: Juliol
Duresa de Moh's: 9
Cura i neteja: Molt adequada per a l'ús quotidià ja que aguanta bé els cops. Tot i que suporta bé els productes químics recomanem l'ús d'aigua tèbia, sabó i d’un raspall suau per a la seva neteja.

 

Joies amb Robí

 

 

Tanzanite

Tanzanite is one of the most valuable and little known gemstones. It belongs to the variety of Zoisites, a mineral of the silicate group. The light makes its color variable, from ultramarine blue to sapphire blue, being the most popular and appreciated its saturated-lilac blue tone.

It is a thousand times rarer than diamond because it is found in only one place: at the foot of Kilimanjaro, near the Merenari hills, in northern Tanzania. Tanzanite was formed 5 million years ago, but was not discovered until 1967. Its discovery is attributed to Manel D'Souza, a tailor by profession and gold and gem seeker in his time. free. D’Souza is said to have obtained Tanzanian thanks to a member of the Massai tribe, and was initially thought to be a sapphire.

The name Tanzanite was introduced by the American jeweler Tiffany & Co. The only deposit is located in Arusha (Tanzania), it occurs in veins or in the filling of gneiss fissures. A strong pleochrome appears in purple, brown or yellow.

 

Back to the menu

Technical information

 

Color: Blue-Violet
Moh's hardness: 6.5 a 7
Chemical composition: Ca2Al3 [O[OH][SiO4]Si2O7] / Calcium aluminium silicate

 

Jewelry with Tanzanite

 

 

Ruby

Ruby is one of the most important gems. Its rarity, hardness and, above all, its characteristic and silky red color, make this gem one of the most valuable and appreciated. It is precisely its chromatic characteristics that give it its name, as we can trace the origin of the Latin word "Ruber", which means "Red". A red color that can become fluorescent depending on the amount of chromium contained in the ruby: increasing its brightness and reinforcing the classic image of antiquity of a gem that kept a prisoner flame in its interior.

Historically it has been linked mainly to power and blood, it is considered the stone of life itself - the Burmese warriors of Mogok, for example, were embedded in their bodies for protection and power. It is the stone of the month of July and is linked to material powers -riches- and physical powers -youth energy-, a gem of extremes, which represents love and strength, passion and fury, prohibition and desire...

 

Back to the menu

Learn more

 

Color: Red
Ethical origin: Myanmar / Vietnam / Thailand / Cambodia / Afghanistan / Pakistan…
Associated month: July
Moh's hardness: 9
Jewelry care: Very suitable for everyday use as it withstands blows well. Although it tolerates chemicals well, we recommend the use of warm soapy water and a soft brush for cleaning.

 

Jewelry with Ruby

 

 

Diamond

The most special of all gems. Formed under high temperatures and pressures, this gemstone represents, in many ways, perfection. It is the gem with the best durability and the hardest material on Earth, in fact its name comes from the Greek "Adamas", which means invincible or unbreakable. Diamonds have very distinctive characteristics, the main one being their extraordinary brilliance thanks to the spectacular isometric crystal structure of the gem. An almost white reflection, a captivating and very suggestive brilliance that makes you fall in love. It is the brightest gem.

Diamonds have well-known universal meanings, being the main protagonist in couples union ceremonies, but historically they have been attributed to others. It is the characteristic gem of April and is said to have the ability to bestow strength, longevity, beauty and happiness, characteristic of the gem it transmits to the wearer. It is certainly undeniable that one feels more beautiful and safe with one on top, whether it is a magical effect or not...

 

Back to the menu

Learn more

 

Color: Colorless
Ethical origin: Around the world
Associated month: April
Moh's hardness: 10
Jewelry care: Very suitable for everyday use as it withstands blows well. Although it tolerates chemicals well, we recommend the use of warm soapy water and a soft brush for cleaning.

 

Jewelry with Diamond

 

 

Cart

No more products available for purchase

Your cart is currently empty.

[[recommendation]]