Gemstone centering device

A gemstone centering device comprising:

• a platform for receiving the gemstone;
• a pair of first arms arranged opposite one another above the platform and movable along a first axis, the pair of first arms being configured to move between a retracted position and an extended position in which a distance between first gem contacting surfaces of the pair of first arms is less than in the retracted position of the pair of first arms;
• a pair of second arms arranged opposite one another above the platform and movable along a second axis, the pair of second arms being configured to move between a retracted position and an extended position in which a distance between second gem contacting surfaces of the pair of second arms is less than in the retracted position of the pair of second arms;
• and
• a base having a plurality of tracks in which the pair of first arms and the pair of second arms are configured to travel along the first and second axes, respectively, wherein the second pins are part of an outer ring that is configured to rotate within the base and the first pins are part of an inner ring that is configured to rotate within the base and is configured to rotate independent from the outer ring, each of the inner ring and outer ring having a center opening;
• wherein the movement of the pair of first arms is independent from the movement of the pair of second arms;
• wherein the pair of first arms includes first slots formed therein and the pair of second arms includes second slots formed therein, the first slots receiving first pins and the second slots receiving second pins, wherein the movement of the first pins in the first slots imparts axial movement of the pair of first arms along the first axis and the movement of the second pins in the second slots imparts axial movement of the pair of second arms along the second axis.