The present disclosure relates to a method of making fancy orange synthetic CVD diamond material. Among other things, the method may involve (i) providing a single crystal diamond material that has been grown by CVD and has a [N.sub.s.sup.0] concentration less than 5 ppm; (ii) irradiating the provided CVD diamond material so as to introduce isolated vacancies V into at least part of the provided CVD diamond material such that the total concentration of isolated vacancies [V.sub.T] in the irradiated diamond material is at least the greater of (a) 0.5 ppm and (b) 50% higher than the [N.sub.s.sup.0] concentration in ppm in the provided diamond material; and (iii) annealing the irradiated diamond material to forming vacancy chains from at least some of the introduced isolated vacancies.

There is proposed a decorative element containing (a) a transparent gemstone with a faceted surface comprising convex curved regions, (b) a wavelength-selective layer, and (c) a photovoltaic cell.

Glass ceramic material for the production of synthetic stones in fashion jewellery and jewellery, having excellent mechanical properties, chemical and heat resistance, harmless due to absence of lead, arsenic and cadmium compounds, available in a broad scale of colour designs, imitating faithfully natural precious stones thanks to high content of spinel crystalline phase and lowered content of SiO.sub.2, consisting of (in weight %):

20-40% SiO.sub.2,
1.5-10% B.sub.2O.sub.3,
20-35% Al.sub.2O.sub.3,
0.1-20% MgO,
0.1-20% ZnO,
the content of MgO+ZnO being at least 10%,
preferably also
0-15% TiO.sub.2,
0.1-15% ZrO.sub.2,
the content of TiO.sub.2+ZrO.sub.2 being at least 5%,
more preferably also
0-20% of colouring additives in the form of CoO, NiO, CuO, Fe.sub.2O.sub.3, MnO.sub.2, Cr.sub.2O.sub.3, V.sub.2O.sub.5, Pr.sub.2O.sub.3, CeO.sub.2, Nd.sub.2O.sub.3, Er.sub.2O.sub.3, AgO and Au.

A decorative glass article contains: in mol %, 10% to 70% of La.sub.2O.sub.3, 10% to 90% of Nb.sub.2O.sub.5, 0% to 40% of B.sub.2O.sub.3, and 0% to 50% of TiO.sub.2, wherein a refractive index is 2.0 or more and an Abbe number is 50 or less.

A glass article contains: in mol %, more than 0% to 70% of La.sub.2O.sub.3, 0% to 80% of B.sub.2O.sub.3, 0% to 40% of SiO.sub.2, 0% to 80% of B.sub.2O.sub.3+Al.sub.2O.sub.3+SiO.sub.2, 0% to 85% of Gd.sub.2O.sub.3+Ga.sub.2O.sub.3+Y.sub.2O.sub.3+Yb.sub.2O.sub.3+ZrO.sub.2+TiO.sub.2+Nb.sub.2O.sub.5+Ta.sub.2O.sub.5+WO.sub.3, 0% to 15% of MgO+CaO+SrO+BaO, 0% to 35% of ZnO, and more than 0% to 5% of CuO.

The present disclosure provides a merchandising ornament. The merchandising ornament includes a stone at least semitransparent, a near-field communication (NFC) chip, an upper decal, and a lower covering. NFC chip is coupled to the stone and configured to store touchpoint information to transfer to a receiving device. The stone includes a generally planar base. The upper decal has a top face and a bottom face with the top face bearing a design and being adhered to at least a portion of the planar base of the stone. The design on the front face is visible through the stone. The lower covering has a top face and a bottom face with the top face of the lower covering being adhered to the bottom face of the upper decal such that the near-field communication chip is secured and concealed between the upper decal and the lower covering.

A method for adhering embellishments to a glass substrate. The method provides a depression in the glass matching the shape of the embellishment, allowing for a lower profile and protecting the adhesive from water and solvents, thus reducing the chance of the embellishment falling off of the glass.

Proposed is a decorative element containing (a) a gemstone, (b) an electrically conductive layer on at least a partial area of the gemstone; and (c) an electronic sensor.

The invention relates to a decorative element comprising an elongate support body and a multitude of, in particular faceted, gemstones on an adhesive layer on the support body, wherein a minimum position and a maximum position exist for each of the gemstones.

The invention relates to a method for partially coating a surface of an object, comprising the following steps: (a) optional hydrophobization of the surface of the object; (b) partial application of (b1) a liquid and subsequent application of a powderous or granular substance or (b2) a solution or suspension of said powderous or granular substance in a liquid; (c) drying the surface to form spatially-delimited salt or powder crusts; (d) coating the surface with at least one layer of a metal or a metal compound; and (e) removing the salt or powder crusts that have been produced. The invention also relates to products that have been produced according to the claimed method.