Abstract: A sparkling, oblong-shaped precious stone, such as an emerald or cushion cut diamond is formed by a planar table facet, a girdle, two pairs of long crown facets located between the table facet and the girdle, and the two pairs of long pavilion facets located between the base of the stone and the girdle.

Abstract: A sparkling, oblong-shaped precious stone, such as an emerald or cushion cut diamond is formed by a planar table facet, a girdle, two pairs of long crown facets located between the table facet and the girdle, and the two pairs of long pavilion facets located between the base of the stone and the girdle.

Abstract: A sparkling, oblong-shaped precious stone, such as an emerald or cushion cut diamond is formed by providing these diamonds with two long crown surfaces extending at a crown angle and two long pavilion surfaces extending at a pavilion angle, where the crown angle is in the range of 30-36 and the pavilion angle is in the range of 30-34. The crown angle and the pavilion angle are so formed that the crown angle is either equal to or larger than the pavilion angle by an angle that does not exceed 6 degrees.

Abstract: A sparkling, oblong-shaped precious stone, such as an emerald or cushion cut diamond is formed by providing these diamonds with two long crown surfaces extending at a crown angle and two long pavilion surfaces extending at a pavilion angle, where the crown angle is in the range of 30-36 and the pavilion angle is in the range of 30-34. The crown angle and the pavilion angle are so formed that the crown angle is either equal to or larger than the pavilion angle by an angle that does not exceed 6 degrees.

Abstract: Lighting systems and lighting assemblies are disclosed, including a lamp with several light sources positioned to produce a smoother more blended lighting effect. Three or more light sources may be included, and each source can be positioned in its own light well. The light wells can be conical in form but may have a side of a cone missing to connect it to adjacent light wells, including to both adjacent light wells. A proximity sensor may be included to turn on or off the lamp or to dim the lamp when a user's presence is detected.

Abstract: A rotary stand for TV screen or monitor, which require an adjustable angular position relative to its vertical axis, secured in a holder in a bearing column, mounted rotationally in a fixed mount, fitted with a controlled electric drive of the bearing column bi-directional rotation and a potentiometer for electric adjustment of the bearing column angular position is described together with a support stand that is mountable to a lateral wall. A potentiometer directly coupled with the bearing surface, and a friction clutch, as a component of a kinematic drive chain, transfers torque from the electrical drive to the bearing column. The stand has a programmable control system enabling the limit angular positions of the screen secured in the holder on the bearing column to be automatically set and programmed.

Abstract: A rotary stand for TV screen or monitor, which require an adjustable angular position relative to its vertical axis, secured in a holder in a bearing column, mounted rotationally in a fixed mount, fitted with a controlled electric drive of the bearing column bi-directional rotation and a potentiometer for electric adjustment of the bearing column angular position is described together with a support stand that is mountable to a lateral wall. The stand has a programmable control system enabling the limit angular positions of the screen secured in the holder on the bearing column to be automatically set and programmed. A remote control for controlling the rotation of the TV monitor and an LED lighting strip for showing the position of the TV monitor selected and a direction of movement of the TV monitor are also provided.