Gem stone frame fastening in stone

FIELD: jewelry industry.

SUBSTANCE: invention relates to jewelry industry. Carcass fastener comprises, at least, two parts, forming base with gluing. At least, one of base parts contains, at least, one recess, each of which is made with through hole, and in each of recesses jewel element is arranged, made in form of jewelery insert encase into metal, made with pin in jewelery element lower part. Pin is inserted into recess through hole and rigidly attached to fastening element from base part other side, made with lateral dimension, exceeding recess through hole diameter, which prevents jewelry element falling out of recess after attachment. At least, one of base parts is made with grooves and/or recesses on glued surface, in assembled state providing hidden arrangement of jewelry article base bearing frame elements inside them, as well as jewelry elements fasteners and pins.

EFFECT: improved operational characteristics of jewelry article due to jewelry article increased fastening strength in base, with simultaneous provision of hidden from view base frame fastening with jewelry element in jewelry article.

7 cl, 14 dwg

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to production of monocrystalline diamond material by chemical vapour deposition (CVD), which is used in optical, mechanical, fluorescent and/or electronic devices. A diamond layer contains a mesh of nonparallel intercrossing dislocations as seen on an X-ray topographic sectional image or in conditions of a fluorescent technique, wherein the layer has thickness equal to or greater than 1 mcm; the mesh of nonparallel dislocations stretches across a volume which is at least 30% of the total volume of the diamond layer, and wherein the mesh of nonparallel dislocations contains a first set of dislocations propagating in a first direction through the diamond layer, and a second set of dislocations propagating in a second direction through the diamond layer, wherein the angle between the first and second directions is in the range of 40° to 100°, as seen on an X-ray topographic sectional image or in conditions of a fluorescent technique.

EFFECT: invention enables to control the type and/or direction of dislocations in a diamond material without affecting optical and/or electronic properties of devices based on said material and optimise said properties for a specific application.

12 cl, 8 dwg, 2 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to technology of producing coloured diamond materials, which can be applied as precious stones or cutting instruments. Method includes stages of growing monocrystalline diamond material in accordance with CVD-technology, with diamond material having concentration of single substituting nitrogen atoms [Ns0] less than 1 ppm; initial CVD-diamond material is colourless, or, in case it is not colourless, then, according to colour gradation brown or yellow, and if it is brown according to colour gradation, then it has level G (brown) of colour gradation or better for diamond stone with 0.5 carat weight with round diamond cut, and if it is yellow according to colour gradation, it has level T (yellow) of colour gradation or better for diamond stone with 0.5 carat weight with round diamond cut, and irradiation of initial CVD-diamond by electrons to introduce isolated vacancies into diamond material in such a way that product of the total concentration of vacancies × way length [Vt]×L, in irradiated diamond material at said stage or after additional processing after irradiation, including annealing irradiated diamond material at temperature at least 300°C and not higher than 600°C, constitutes at least 0.072 ppm cm and not more than 0.36 ppm cm.

EFFECT: diamond material becomes fancy light-blue or fancy light greenish blue in colour.

21 cl, 4 dwg, 3 tbl, 9 ex

Diamond faceting // 2537278

FIELD: process engineering.

SUBSTANCE: invention is intended for use in production of jewellery. Proposed method consists in diamond site shaping to cone with cone generatrix angle to girdle plane. Diamond faceting features the following parameters: diamond diameter D, total height H=0.61D, cone base d=0.52D, girdle depth r=0.04D, top height with girdle h1=0.22D, bottom height to girdle h2,=0.39D, inclination of top faces to girdle plane 23.5°, bottom inclination to girdle plane 38.5°, cone generatrix inclination to girdle - 17°.

EFFECT: perfected diamond dye play.

1 dwg

FIELD: process engineering.

SUBSTANCE: decorative composite body (1) comprises glass body (2) and polymer (3) to cover partially said glass body (2). Portion of glass body surface is located on outer surface of decorative composite body (1). Note here that at least two adjacent areas (8) of glass and polymer material (3) on composite body (1) outer side are ground in as-boded state. Glass body (2) areas verging on polymer material (3) are provided, at least partially, with mirror coat.

EFFECT: ruled out air bubbles and optical defects.

21 cl, 22 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to technology of production of synthetic diamond material, which can be applied in electronic devices. Diamond material contains single substituting nitrogen (Ns0) in concentration more than 0.5 ppm and having such complete integral absorption in visible area from 350 nm to 750 nm, that at least nearly 35% of absorption is attributed to Ns0. Diamond material is obtained by chemical deposition from vapour or gas phase (CVD) on substrate in synthesis medium, which contains nitrogen in atomic concentration from nearly 0.4 ppm to nearly 50 ppm, and gas-source contains: atomic part of hydrogen, Hf from nearly 0.40 to nearly 0.75, atom part of carbon, Cf, from nearly 0.15 to nearly 0.30; atomic part of oxygen, Of, from nearly -.13 to nearly 0.40; and Hf+Cf+Of=1; ratio of atomic part of carbon to atomic part of oxygen, Cf:Of, satisfy the ratio nearly 0.45:1<Cf:Of< nearly 1.25:1; and gas-source contains atoms of hydrogen, added in form of hydrogen molecules, H2, with atomic part of the total quantity of present atoms of hydrogen, oxygen and carbon between 0.05 and 0.40; and atomic parts of Hf, Cf and Of represent parts from the total quantity of atoms of hydrogen, oxygen and carbon, present in gas-source.

EFFECT: invention makes it possible to obtain diamond material with rather high content of nitrogen, which is evenly distributed, and which is free of other defects, which provides its electronic properties.

17 cl, 11 dwg, 6 ex

FIELD: metallurgy.

SUBSTANCE: monocrystalline diamond material that has been grown using a CVD method and has concentration of single substituent nitrogen [Ns0] of less than 5 ppm is irradiated to introduce isolated vacancies V to at least some part of the provided CVD-diamond material so that total concentration of isolated vacancies [VT] in the obtained diamond material is at least more than (a) 0.5 ppm and (b) by 50% more than concentration [Ns0] in ppm in the provided diamond material; after that, annealing of the obtained diamond material is performed so that chains of vacancies can be formed from at least some of the introduced isolated vacancies at the temperature of at least 700°C and maximum 900°C during the period of at least 2 hours; with that, irradiation and annealing stages reduce the concentration of isolated vacancies in diamond material, due to which concentration of isolated vacancies in the irradiated and annealed diamond material is <0.3 ppm.

EFFECT: diamonds obtain fancifully orange colour during such treatment.

16 cl, 3 dwg, 4 tbl

FIELD: personal use articles.

SUBSTANCE: invention is designed for being used in jewellery industry. The method for faceting diamonds with a culet involves faceting of a round-shaped diamond faceted so that to form a culet. Within the culet, one grinds out and polishes arc-shaped grooves from opposite edges of the diamond bottom facets. The arc-shaped grooves have a section angle equal to 41°.

EFFECT: ensuring complete reflection of light from the culet thus creating additional brilliance of the stone.

2 dwg

FIELD: personal use articles.

SUBSTANCE: invention is designed for being used in jewellery industry. The method for faceting diamonds with a culet involves faceting of a round-shaped diamond faceted so that to form a culet; within the culet, one grinds out and polishes an internal pyramid with a polygon-shaped base the sides whereof are parallel to those of the culet polygon. The pyramid is ground out and polished at the angle between opposite sides equal to 98.5°.

EFFECT: ensuring complete reflection of sunbeams from the culet thus creating additional brilliance of the stone.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention is intended for use in production of jewelry. Proposed method comprises faceting round diamond to form a culet. Inner taper with solid angle of 98.5° is ground and polished in said culet.

EFFECT: complete reflection of light from cullet to create extra stone brilliance.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to processes used in operation at high pressure and modifying substances physically. Proposed method comprises placing diamond in reaction cell in pressure transmitting medium, increasing pressure in reaction chamber and it cooling. Note here that thermal treatment is carried out at temperature increase rate of 10-50°C/s and at 2000-2350°C by passing electric current via heater in cell from programmed power supply source with due allowance for temperature relaxation in said cell in heating. For this, note also that temperature relaxation constant is defined. Said cell is cooled after heating by switching off power supply in forming short diamond heating pulse in temperature range of over 2000°C with diamond total stay time smaller than 30 seconds. Allowance for temperature relaxation in said cell in heating for heating rate Vt and pre-definition of cell temperature relaxation constant τ is made by setting in said programmable power source the maximum temperature of heating to τVT above maximum treatment temperature of 2000-2350°C.

EFFECT: changing colour of low-grate natural diamond without notable graphitisation, high-quality gem diamonds.

2 cl, 5 dwg, 3 ex

FIELD: settings for holding gems.

SUBSTANCE: method comprises setting diamond in the mould so that its base side is in a contact with the bottom side of the top plate and injecting elastomer under pressure that holds the diamond in the clamping ring.

EFFECT: simplified method.

45 cl, 6 dwg

FIELD: jewelry industry, in particular, production of precious stone, more particular diamond which may be personified or identified with certain individual or animal.

SUBSTANCE: personified grown jewelry diamond comprises heavy metals Sr, Cd, Sn, Ba, Pb, Bi separated from hairs of certain individual or animal, with ratio of concentrations of said metals corresponding to that of said elements in hairs of the given individual or animal. Method involves processing hairs of certain individual or animal by mineralization of hairs at temperature below 550 C until complete decomposition of organic component; forming source for growing of diamond from spectrally pure graphite and hair processing product containing heavy metals Sr, Cd, Sn, Ba, Pb, Bi; growing diamond from melt by seed crystal recrystallization process; determining ratio of concentrations of these elements in grown diamond and comparing with their content in processing product. Jewelry diamond produced has microelements characteristic of certain individual or animal.

EFFECT: simplified method and improved quality of grown jewelry diamond.

3 cl, 2 tbl

FIELD: production of diamond layers.

SUBSTANCE: diamond layer at thickness more than 2 mm is obtained through chemical deposition from gaseous phase. Method includes homo-epitaxial growth of diamond layer on surface of backing at low level of defects in atmosphere containing nitrogen at concentration lesser than 300 billion parts of nitrogen.

EFFECT: improved quality of diamond layers.

36 cl, 10 dwg, 1 tbl, 4 ex

FIELD: jewelry industry; optics.

SUBSTANCE: proposed method is used for coloring fianites (man-made diamonds) in green, blue and brownish-yellow colors; proposed method may be also used in optics for production of colored light filters withstanding temperatures above 1000°C. Proposed method includes preliminary application of cobalt on fianite surface to be colored and at least one metal whose oxide is liable to spinelle-forming with oxide of bivalent cobalt, iron and/or aluminum, for example. Then material is subjected to heat treatment in oxygen-containing atmosphere at temperature above 1000°C but not exceeding the fianite melting point. The procedure is continued for no less than 3 h. Coat is applied by thermal spraying of metals in vacuum. Said metals may be applied in turn and simultaneously. For obtaining bluish-green color of fianite, cobalt and aluminum are applied at atomic ratio of 1:1 to 1:2. For obtaining yellowish-green color, cobalt, aluminum and iron are applied at atomic ratio of 1:1 :0.1-0.2. For obtaining yellowish-brown color, cobalt and iron are applied at ratio of 1:1 to 1:2.

EFFECT: enhanced resistance to high temperature and chemical action.

7 cl, 11 ex

Diamond "timur" // 2309649

FIELD: jewelry industry, in particular, diamond faceting.

SUBSTANCE: diamond is made in the form of rectangle with beveled angles and has side faces to be polished. Angles of inclination to rundist plane of crown main faces are 30 deg, of crown paired wedges - 34 deg, of rundist faces - 90 deg, of pavilion main faces - 39 deg, of pavilion wedges - 50 deg, of paired wedges - 45 deg, of angular paired wedges - 41 deg. Diameter of platform is 64%, height of crown is 15%, height of rundist is 2%, depth of pavilion is 43%, total height is 60% of rundist diameter.

EFFECT: reduced labor intensity for stone faceting and increased efficiency in utilization of rough diamonds.

3 dwg

FIELD: decorative diamond gem-cutting structure and method for evaluating of diamond.

SUBSTANCE: gem-cutting structure is made in the form of round diamond gem-cut comprising rundist, crown above rundist and pavilion under rundist. Height of rundist is 0.026-0.3 the radius of rundist, angle of pavilion of rundist main facet is ranging between 37.5 deg and 41 deg, and angle of main facet of crown is within the range conforming to the following ratios: c>2.8667xp+134.233 and p<1/4x{sin-1(1/n)+sin-1 (1/n˙sinc))x180/π +180-2c}, where n is diamond diffraction ratio; π is circle constant; p is angle of pavilion, deg; c is angle of crown, deg. Decorative diamond cutting design presents multiplicity of visually perceptible diffracted beams, when observer contemplates diamond on the side of pavilion facet at sight angle less than 20 deg relative to vertical line extending through center of facet of platform.

EFFECT: increased number of perceived diffracted beams to impart additional aesthetic attractiveness to diamond.

13 cl, 43 dwg

FIELD: producing artificial diamonds.

SUBSTANCE: method comprises preparing diamond substrate virtually having no defects, preparing the initial gas, decomposing initial gas to produce the atmosphere for synthesis that nitrogen concentration of which ranges from 0.5 to 500 particles per million, and homogeneous epitaxy growth of diamond on the surface.

EFFECT: increased thickness of diamond.

40 cl, 9 dwg, 5 ex

FIELD: carbon materials.

SUBSTANCE: invention relates to preparation of boron-alloyed monocrystalline diamond layers via gas phase chemical precipitation, which can be used in electronics and as jewelry stone. The subject matter is uniformity of summary boron concentration in above-mentioned layer. The latter is formed in one growth sector and characterized by thickness above 100 μm and/or volume exceeding 1 mm3. Boron-alloyed monocrystalline diamond preparation involves diamond substrate provision step, said substrate having surface containing substantially no crystal lattice defects, initial boron source-containing gas preparation step, initial gas decomposition step, and the step comprising homoepitaxial growth of diamond on indicated surface containing substantially no crystal lattice defects.

EFFECT: enabled preparation of thick high-purity monocrystalline diamond layers exhibiting uniform and useful electronic properties.

44 cl, 5 tbl, 7 ex

FIELD: jewelry.

SUBSTANCE: diamond of rectangular cut has beveled facets. Each of said beveled facets adjacent to four apexes of crown has fracture extending along diagonal line parallel to belt so as to form facet configuration wherein beveled facet is divided into lower beveled facet and upper beveled facet. Upper angle of upper beveled facet crown may be made smaller than angle of lower beveled facet crown and, accordingly, even without altering of crown height, so that sign of facet is slightly smaller. Deviation angles of star facets and of second beveled facets from horizontal plane, provided that both are capable of intensive reflection, may be made small, and areas of these facets may be made large. Thus, all reflection patterns become similar in size to the extent that is preferable for visual perception. By making star facets and second beveled facets so that they have small angle of deviation from horizontal plane, extremely intensive reflection may obtained and increased areas of star facet and second beveled facets may be provided. This allows cut to be provided, which is characterized by extremely intensive reflection (the number of visually perceptible beam reflections).

EFFECT: improved rectangular diamond cut by providing optimal shape of facet configuration for increasing the number of visually perceptible reflected beams.

10 cl, 19 dwg

FIELD: chemistry, technological processes.

SUBSTANCE: invention allows to obtain memorial diamond from pale-yellow to light-blue tint depending on content of admixture in it, which is identified with exact person and is an object, which reminds of him/her. Method includes processing of biological material belonging to exact individual, and growing on its basis artificial diamond by acting on it with high pressures and temperatures. Processing is performed by mechanical grinding, preliminary drying, chemical processing in hydrochloric acid, chemical processing with complex-former Trilon-B, chemical processing with mixture of mineral acids - hydrofluoric and nitric or sulfuric acids, repeated washing after each chemical processing with said reagents to neutral reaction, filtration and drying until pure highly-dispersive carbon of biological origin is obtained.

EFFECT: obtaining carbon of high purity with characteristic microelements for exact individual.

6 cl, 3 tbl

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