Dimanti

Mākslīgais dimants ir akmens, kas pēc sastāva ir gandrīz identisks dabīgajam dimantam, bet audzēts īpašos laboratorijas apstākļos. Mākslīgos dimantus nedrīkst jaukt ar fianītu un moisanītu. Ja ar pēdējiem diviem minētajiem dabiskajam dimantam ir daudz atšķirību, kas ļauj atpazīt viltojumu, izmantojot pat mājas testus, tad mākslīgā dimanta gadījumā viss ir daudz sarežģītāk. Mēģināsim saprast. Mākslīgie dimanti - kas tie ir un kā tos izgatavo? Pirmie mākslīgie dimanti tika sintezēti XX gadsimta 50. gados. Taču līdz tādam izmēram, kas būtu interesants juveliermākslas nozarei, paraugus izdevās novest tikai 90. gados. Mūsdienās pastāv divas galvenās ražošanas tehnoloģijas. HPHT sintēze Dimanta audzēšanas tehnoloģija mazās kapsulās zem augsta spiediena (no augsta spiediena un augstas temperatūras). Izejviela ir dimanta pulveris, kas tiek izšķīdināts izkausētā metālplūsmā un pēc tam kristalizēts uz sēklas. Audzēšanas process ilgst...

Vai plānojat iegādāties rotaslietas ar dimantiem, bet nezināt, kā tās izvēlēties? Lai nekļūdītos, iegādājoties rotaslietas, jums ir jāprot izlasīt šo briljantu īpašības. Tas nav grūti. Dimanta izvēle pēc tā īpašībām Droši vien ikviens zina, ka briljantu cena ir atkarīga no to svara, ko mēra karātos. Lūdzu, ņemiet vērā! Karāts ir dārgakmeņu svara mērvienība, tas ir 0,2 grami. Tas parādījās jau senajā Romā: karāts ir karotes sēkla, kuras masa ir no 0,18 līdz 0,22 gramiem. Taču ne tikai svars ietekmē akmeņu vērtību. Dimantu novērtē pēc šādām īpašībām: griezuma forma griezuma kvalitāte dzidrums Karāts Krāsa Šo parametru summa ietekmē galīgo cenu. Slīpējuma forma Topošā dimanta griezuma formu izvēlas juvelieris, pamatojoties uz dabisko akmens izmēru un formu. Speciālista uzdevums šajā posmā ir samazināt...

The history of large gemstones is a story of passion and crime, of blood and dark secrets, of fulfilled prophecies and terrible curses. They excite, mesmerize as much as the dazzling brilliance of the gemstone around which they exist. Do you like frightening stories? Then this one is about the Kohinoor, a diamond that has brought incalculable calamities upon all its owners. Only a century and a half ago, the English Queen Victoria managed to stop the curse of "Kohinoor" - the diamond, because of which the blood was shed for centuries. But first things first. "Kohinoor" ("Kohinoor", "Koinoor", "Koh-e-Noor") is a colorless oval diamond weighing 105.6 carats (21.12 grams) with 66 facets. Traditionally, large top-quality diamonds are cut with 58 facets, but Kohinoor's jeweler added 8 more to bring out its incredible brilliance. History of the name "Kohinoor" is a diamond whose appearance is lost in the darkness of not even centuries, but millennia. Even the history of its modern…

In this age of fakes and copies, all consumers have to keep their eyes open. After all, it is so easy to fall prey to unscrupulous comrades and get something of lesser quality instead of the coveted luxury product. This applies to all spheres, including jewelry. So, let us remain vigilant and doubt everything. An experienced jewelry connoisseur always scrutinizes the characteristics of the jewelry and will be wary if he reads that the stones in it are ennobled. Isn't it a fake? What is behind the name "clarified diamonds"? Are they diamonds or just another synthetic clone? And if diamonds are real, how are they ennobled and, most importantly, why? Let's get to the bottom of it. Fig.1. On the left - a polished diamond, on the right - a natural diamond What is a clarified diamond Nature, like any craftsman, can also make mistakes, and sometimes its creations are imperfect. From the human point of view, of course. Thus, about a quarter of all gem diamonds mined in the world ha…

The capital of Saxony, Dresden, is a unique museum city that has been called the German Florence. It resembles a treasury or a precious necklace, where, at the whim of a skilled craftsman, genuine relics neighbor and harmoniously complement each other. One of them is the Dresdner Grüner Diamant (Dresden Green Diamond), a famous large natural diamond of apple color, excellent cut and almost flawless clarity. Now it is kept in the richest European jewelry collection of the "Grünes Gewölbe" (Green Vaults), a museum located in the restored palace of Elector Augustus the Strong. Fig.1. Hat brooch-agraffa with Dresden green diamond The pear-cut emerald diamond shines in the center of the hat brooch-agraffa among its hundreds of white counterparts. It is the only naturally occurring green diamond in the world so large and this puts it on par with the Kohinoor, Cullinan, Hope's Blue Diamond and other legendary treasures. The fantastic color and unique characteristics of the Dresden …

The most important stage in the processing of gemstones, which determines their appearance in the future, is, of course, the cut. It is quite possible to get confused in the varieties of faceting, but all experts divide them into 3 groups: diamond; step; mixed. In this article, let's talk about step cuts. And let's consider the most popular step cut for Emerald cut diamonds. In general, a step cut of any type ("octagon", "asher" and others) implies a parallel arrangement of facets. This means that a crystal subjected to such a strictly geometric treatment can only have a rectangular or square shape. Such symmetry, of course, worse reveals the brilliance and play of the stone, but perfectly emphasizes its purity, depth and transparency. In addition, it is ideal for colored minerals and crystals with a hue. Rectangular diamonds from Cartier But back to our diamond "emeralds". As is clear from the name, the first stone for which such a cut was used was not a diamond at…

Like many beautiful and exquisite things, the diamond has a direct connection to France. More precisely, the word "diamond" comes from the French language and means "brilliant". However, all over the world it is customary to say diamond, but brillant is mentioned only in the context of cutting. And this is logical. A natural diamond is a stone that is not very attractive outwardly. Only a quality cut turns it into a sparkling perfection. What is the classic and reference cut of a diamond? There are 12 main types of diamond cuts. At the same time, mankind has preferred the classic round cut - Standard Round Brilliant cut - to all others for more than a century. From 75% to 90% of diamonds sold in the world at the moment have the traditional shape and 57 or 17 facets. Who invented the round brilliant cut? History of creation The history of the perfect diamond dates back to the 17th century, when jewelers began to master new faceting techniques to bring out the beauty of the ge…

Fig. 1 The weight of one carat of a diamond in grams When choosing a piece of jewelry in a jewelry store, the first thing you look at is the tag. And when a piece of jewelry has diamonds, the tag always indicates their weight, but not in grams, but in carats. Of course, you have questions - how much does 1 carat of diamond weigh or how many carats are in 1 gram of diamond? Let's answer it now. Grams and carats: weight ratio The ratio of grams to carats is 1:5. One carat of a diamond contains only 0.2 grams or 200 milligrams. Accordingly, there are 5 carats in 1 gram. The weight of gemstones is estimated only to thousandths of a gram (the third digit after the decimal point). How the carat emerged The history of weighing gemstones in carats begins in ancient Rome. Not having accurate scales at hand, Roman jewelers and merchants used other ways to determine the mass of stones. There is a carob tree whose seeds are always the same size (about 1 cm) and weight - 0.2 grams, or, m…

Katrs no mums vismaz vienu reizi mūsu dzīvē, ja tikai ziņkārības dēļ, bet ieskatījās horoskopā, un zina, kas viņš vai viņa ir saskaņā ar Zodiaka zīmi. Un tas ir loģiski - zvaigznāji patiešām piešķir saviem padotajiem noteiktas kopīgas iezīmes. Galu galā, diez vai var uzskatīt par sagadīšanos, ka "zemes" āži, Jaunavas un Vērši - piemēram, Stīvens Hokings, Ņūtons, Kurčatovs, Kapitsa, Žanna D'Ark un Oļegs Deripaska - ir pragmatiski, strādīgi un mērķtiecīgi. Un ikviens, kurš saskarsmes lokā ar "gaisa" zīmju trijotnes pārstāvjiem, atzīmēja, ka bieži vien šiem biedriem - raksturs radošs, bet nedaudz vieglprātīgs. Piemēri: Puškins, Lermontovs, Esenins, Cvetajeva, Dikenss, Bairons. Nu, bet kā ir ar uguns stihiju? Auns pieder pie "uguns" zīmju trigonam un šajā trijniekā ieņem godpilno pirmo vietu. Ar visu no tā izrietošo. Auna sievietes - dzimušas līderes: spilgtas, spontānas, enerģiskas, pārliecinošas ("Es redzu mērķi, es ticu...

Zodiaka aplis atver visspilgtāko, harizmātiskāko un temperamentīgāko zīmi no visas ugunīgās triādes. Vīrietim Aunā organiski apvienotas vērtīgākās cilvēces stiprās puses iezīmes, tāpēc Auns bieži tiek dēvēts par vīrišķības etalonu. Viņš - gudrs, tālredzīgs, spožs, spītīgs un attapīgs vikings, kurš vienmēr vada savu drakkaru precīzi uz mērķi, un visi airētāji un karavīri uz kuģa bez ierunām paklausa viņa pavēlēm. Turklāt viņš ir neatvairāms pretējam dzimumam. Stīvens Sīgals, Marlons Brando, Eltons Džons, Ronaldinju, Pāvels Bure, Da Vinči, Bahs, Frānsiss Fords Fords Kopola, vairāki diktatori, kas savulaik līdz pamatiem satricināja pasauli - visi šie cilvēki parādījās Auna zvaigznājā. Lieki piebilst, ka viņi ir vairāk nekā ievērojami un spēcīgi, galvenokārt garā? Tātad, ja esat dzimis Auna zīmē, jums ir paveicies. Un, ja esat dāma un jūsu tuvinieku vidū ir Auni, jums ir divtik paveicies. Taisnība, ar dāvanām žagas - "fier...