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Fine Jewelry University Articles matching: “marquis designs”
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Fine Jewelry University
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How Are Lab Grown Diamonds Made?
… where the amazing properties of diamonds (hardness, thermal conductivity, etc.) are used to make better tools and equipment. Since the initial success with the belt press, HPHT technology has been constantly advancing. Belt press designs have been dramatically scaled up, more modern cubic and split-sphere presses have been introduced which are more efficient, and larger, more perfect gems are being produced. As of the time of this writing, the largest gem quality, faceted…
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Gem in the Spotlight: Pearl
…mabe pearls are grown against the inside shell of a mollusk, rather than within the body of the mollusk itself. This creates a flat, rounded pearl that has a distinctive shape and appearance. Mabe pearls are typically used in jewelry designs that require a flat surface, such as earrings, pendants, and rings. Seed Pearls: These are very small pearls, typically less than 2mm in diameter, that are so named because they resemble the size and shape of a seed. They are formed in…
