Art Deco Asscher Cut Sapphire and Diamond Ring, c.1920s
18 Carat Yellow Gold + Platinum
A unique diamond cut that was developed in 1902 by the Asscher brothers. They were initially famous for cutting the worlds largest stone, the Culinan (3106 carats), and is characterized by its shape, which is similar to an emerald cut, but square and with larger step facets and cut corners. The Asscher cut peaked in demand in the 1920’s, but since the early 2000’s has had a resurgence in popularity.
A granular relief pattern design on metal, produced using a chisel. The effect produces slightly raised bumps and was often used in antique pieces through to the late Art Deco era.
A blue gemstone and variety of the mineral corundum. A sacred gemstone; Moses was supposedly given the Ten Commandments on a tablet of blue sapphire. Sapphire has since been known as a gemstone that symbolizes wisdom and truthfulness. Sapphires from Kashmir are said to have unrivalled beauty, being a deep cobalt blue colour with a silky look. More recently sapphires have become more popular as an engagement stone following the engagement of Katherine Middleton to Prince William. Kate wears a 12 carat Ceylon sapphire as her engagement ring which was previously owned by Diana Princess of Wales. Read more
This term refers to the decorative art style of the 1920s and 1930s. Bold geometric shapes and opulence characterized the style of the era.
A metal prized for its rarity, whiteness, high tensile strength and insusceptibility to corrosion. It first became widely used in jewellery in the late nineteenth century, when methods were found to make it more easily workable. It features heavily in the delicate Edwardian jewellery of the first decades of the twentieth century.
A collectible object, which has more value because of its age or the era it was created in. It is considered that to be ‘antique’, an item should have been made over 100 years ago.
A decorative enhancement to a ring, in the shaped of a metal tube that was usually added under the shoulders of the ring – particularly used in antique pieces.
The part of a ring that sits on top of the finger and supports the bezel. The gallery is sometimes engraved, pierced or open sided with patterns.
A term used to describe the cut of a stone, usually cut prior to 1910. They are characterized by having small tables, large culets and rounded outline with a high crown. They were cut so to produce optimal levels of fire, seen best in candlelight.
A term used to describe the severity of the internal and external inclusions in a gemstone. See The Four C’s for further information.
Derived from the Greek meaning ‘unbreakable’, diamond is a mineral, considered to be the most beautiful and rare of all gemstones. Diamond has been associated with love for centuries.
The diamond colour grading scale ranges from D to Z. See The Four C’s for more information.
A weight measurement of a gemstone or gold. The term is derived from the ancient used of carob seeds to balance scales when selling amounts of gold or gemstones. The term is often shortened to ‘ct’.
A chemical element with the symbol Au. Gold is a yellow, malleable metal which makes it perfect for use in jewellery making.
One of the most defining characteristics of a diamond is its cut. While high grades of color, clarity, and carat weight affect a diamond, it's the cut that determines the symmetry of the stone's facets, its overall proportions, and its ability to reflect light. An expertly cut diamond will achieve high levels of brilliance, sparkle, and durability. For more information and cut types, see The Four C's.
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