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Buddhist works dating from the 4th century BC describe the diamond as a well-known and precious stone but do not mention the details of diamond cutting. [11] Another Indian description written in the beginning of the 3rd century describes strength, regularity, brilliance, ability to scratch metals, and good refractive properties as the ...
Mughal dagger hilt in jade with gold, rubies, and emeralds.. Hardstone carving, in art history and archaeology, is the artistic carving of semi-precious stones (and sometimes gemstones), such as jade, rock crystal (clear quartz), agate, onyx, jasper, serpentinite, or carnelian, and for objects made in this way.
Until the end of the 19th century, it was the primary source of the finest and largest diamonds in the world, making the name "Golconda diamond" synonymous with high-quality diamonds. [ 17 ] [ 19 ] [ 30 ] [ 35 ] It has been estimated the Golconda region traded around 10 million carats of diamonds. [ 36 ]
The process of diamonds being used for drilling ornamental beads dates back to 2nd millennium BCE. Archaeologists working in Yemen have excavated beads with evidences of diamond drilling from 1200 BCE to the 1st century CE from the site of Hajar ar Rayhani, while double diamond drilling from 7th century BCE, archaeologists speculate that the beads were imported from India since no fragmented ...
The largest diamond found in more than a century has been unearthed at a mine in Botswana, and the country's president showed off the fist-sized stone to the world at a viewing ceremony Thursday.
The name of "Stone" or lapis itself is informed by early Christian allegory, such as Priscillian (4th century), who stated, Unicornis est Deus, nobis petra Christus, nobis lapis angularis Jesus, nobis hominum homo Christus (One-horned is God, Christ the rock to us, Jesus the cornerstone to us, Christ the man of men to us.) [25]
The Obelisk of Axum (Tigrinya: ሓወልቲ ኣኽሱም, romanized: ḥawelti Akhsum; Amharic: የአክሱም ሐውልት, romanized: Ye’Åksum ḥāwelt) is a 4th-century CE, 24-metre (79 ft) tall phonolite [3] stele, weighing 160 tonnes (160 long tons; 180 short tons), in the city of Axum in Ethiopia.
Årstad Stone (390–590 AD) Einang stone (4th century) Tune Runestone (250–400 AD) Kylver Stone (5th century) Möjbro Runestone (5th or early 6th century) Järsberg Runestone (transitional, 6th century) Björketorp Runestone (transitional, 7th century) Stentoften (transitional, 7th century) Eggjum stone (8th century) Rök runestone ...