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Loose Gemstones

Sourced directly from international stock exchanges, the natural gems offered by Celinni come from ethical channels that meet a large number of criteria defined by non-governmental organizations. The gemological experts at Celinni are committed to providing the most beautiful precious stones at the fairest price.


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Complete Guide to Precious Stones and Gems: Discovery, Quality and Buying Tips

Welcome to the fascinating world of precious stones and gems. As aonline jewelry store Specialized in diamonds, precious stones and high-end jewelry, we are delighted to share our knowledge and advice with you to help you make the right choice, whether it's to create a unique piece of jewelry, give an exceptional gift, or invest in these natural treasures.

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I. Exploration of the vocabulary of precious stones and gems:

A. Gems: definition and characteristics

A "gem" refers to a mineral or organic substance, such as amber or pearl, that has developed in nature. To be considered a gem, a stone must have a specific chemical composition and crystalline structure, while being attractive, uncommon, and durable.

B. Classic gemstones: diamond, ruby, sapphire, and emerald.

Theprecious stones By convention, the four classics are: the diamond, the ruby, the sapphire, and the emerald. Each of these stones has unique characteristics and high value in the market.

C. Precious Stones: Diversity and Terminology

Thefine stones encompassing all other stones besides the precious ones, such as aquamarine, topaz and tanzanite. It is important to note that the term "semi-precious stone" is now to be banned, because elle is inappropriate for gems as beautiful and rare as a ruby or a sapphire.

D. Ornamental stones and their use

Ornamental stones are gems that are abundant in nature and whose dimensions allow for the creation of decorative objects. Notable examples include jade, amber, marbles, and certain types of quartz.

E. Synthetic and Artificial Stones: Differences and Specificities

Synthetic stones, made in a laboratory, have the same chemical composition and crystalline structure as the natural gems they imitate. Therefore, a synthetic ruby is a real ruby, but man-made. Artificial stones, also produced in a laboratory, however, do not have a natural equivalent, like cubic zirconium, used to imitate diamond without possessing its properties.

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II. Quality and Value Criteria for Precious Stones and Gems

A. Color: impact on the beauty and value of stones

Color is a key element in determining the beauty and value of a gemstone. It is important to consider the hue, intensity, and purity. A quality stone should not be too pale or too dark, and should not show any shades of gray or brown. For example, a quality sapphire is distinguished by its deep blue color without any trace of green or yellow. Similarly, a quality ruby should display a bright and intense red, without shades of pink or purple.

B. Size: influence on the brightness and shine of stones

Size is another essential criterion for assessing the quality of a precious stone or gem. Elle must be carried out with precision to optimize the sparkle and shine of the stone. There are several types of cuts, such as oval, cushion, or even emerald. Each type of cut offers a different result and highlights the stone in a unique way.

C. Carat weight and value of the stones

The weight of a precious stone or gem is expressed in carats. One carat is equivalent to 0.2 g, and the heavier a stone is, the more its value increases. However, it's important to note that the value of a stone does not depend solely on its weight in carats, but also on its quality, color, and size.

D. Clarity: transparency and inclusions

The clarity of a precious stone or gem is also a quality criterion. Elle is determined by its transparency and the absence of inclusions or internal flaws. A stone without inclusions is considered pure and of high quality. However, some inclusions can add character to the stone and not detract from its value, such as the rutile needles present in some varieties of quartz.

E. Provenance: influence on value and authenticity

The origin of a precious stone or gem can influence its value and authenticity. Some regions are renowned for the quality of their gems, such as Sri Lanka for sapphires, Thailand for rubies, or Madagascar for tourmalines. An origin certificate is often requested by buyers to guarantee the authenticity of the stone.

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III. Buying advice for connoisseurs and enthusiasts

A. Inquire about the desired stone

Before investing in a precious stone or gem, it is essential to research its characteristics, its market value, and the quality criteria to consider. Reliable sources, such as specialized books or reference websites like Wikipedia, can help you acquire the necessary knowledge.

B. Choose a trustworthy dealer

To buy a precious stone or gem, it is important to choose a trusted dealer, who has a good reputation and offers guarantees on the authenticity and quality of the stones. Celinni.com, as a specialized online jewelry store, offers a rigorous selection of diamonds, precious stones and high-end jewelry, accompanied by certificates of authenticity and quality.

C. Favor certified stones

When purchasing a precious stone or gem, it is highly recommended to favor stones certified by independent and recognized laboratories, such as the GIA (Gemological Institute of America) or the HRD (Hoge Raad voor Diamant). These certificates guarantee the authenticity, quality and origin of the stone, thus ensuring that you are investing in a genuine natural treasure.

D. Take into account the budget and usage

It is essential to set a budget and consider how you want to use the precious stone or gem. If you want to create a piece of jewelry, take into account the cost of the setting and the jeweler's work. If you wish to give the stone as a gift, consider the personality and preferences of the person you are giving it to. If you are considering investing, study market trends and the prospects for the stone's value to increase.

E. Maintain and preserve precious stones and gems

To preserve the beauty and value of your precious stones and gems, it is important to maintain them and store them under suitable conditions. Keep them in jewel cases or soft cloth bags to avoid scratches and shocks. Clean them regularly with a soft cloth and warm soapy water, avoiding harsh chemicals. Some stones, like emerald or opal, require special care due to their fragility.

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IV. Discovery of iconic places in the world of precious stones and gems

A. Paris, capital of high-end jewelry

Paris is a true showcase for high-end jewelry, with its prestigious houses and talented artisan workshops. Stroll around Place Vendôme and let yourself be dazzled by the glittering shop windows of upscale jewelry boutiques.

B. London and the British Museum

London is home to the famous British Museum, which has an exceptional collection of precious stones and gems. Admire the jewels of the British crown and ancient treasures adorned with rare and precious stones.

C. Jaipur, the pink city of Rajasthan

Jaipur, nicknamed the pink city due to the color of its buildings, is a major hub for gemology in India. Discover its colorful markets and lapidary workshops, where precious stones and gems are cut and polished before being exported all over the world.

D. Madagascar, land of exceptional gems

Madagascar is a true paradise for lovers of precious stones and gems. Explore its sapphire, tourmaline, and other natural treasure mines, and learn more about traditional extraction and carving techniques. The universe of precious stones and gems is a fascinating world, rich in history, beauty, and craftsmanship. Whether you are a connoisseur or a novice, you should be informed and follow expert advice to invest in quality stones and take care of them. At Celinni.com, We are proud to accompany you in this process by offering you a rigorous selection of diamonds, precious stones, and high-end jewelry, as well as informed advice to guide you in your choices. Do not hesitate to contact us for any questions or requests, and let yourself be seduced by the timeless beauty and elegance of precious stones and gems.