Learn About Colored Gemstone Cutting Styles: Plain Cut, Facet Cut and Mixed Cut, Buff Top versus Rose Cut. Learn About Jyotish Gemstones and Vedic Astrolog...October 2013 Newsletter: Astrology and Gems GemSelect's October Newsletter - This month we discuss the difference between astrological gem...
The cut of a gemstone refers to the facet arrangement, proportions, and, often, the shape of the gem. Gemstones are cut in a way that best displays or accentuates their color, sparkle and brilliance. Learn About Cut CLARITY Gemstone clarity refers to how many—if any—inclusions are pre...
Such stones are generally not clean enough to facet. Because of the rarity of this gemstone, large sizes command very high premiums. Facet-quality alexandrite rough is extremely rare. Thus even the very small stones less than 0.5ct. (melee) can sell for thousands of dollars per carat. Any...
No; it’s a single facet displaying a network of glass-filled fissures. (Photomicrograph: Wimon Manorotkul) The latest infilling technique was developed by Tanusorn Lethaisong (see our coverage of this from early 2008). Hughes et al. explain how to use fairly simple observation techniques to...
The stone appears circular when looked at from the top (because of its low table or largest facet) and has a high crown (the part above the middle of the stone) with larger facets. The tip of the stone, or the culet, is flat instead of pointed. This style was used predominantly in...
For all the admirers of exceptional craftsmanship, the new jewels ofBuccellati– including the choker and earrings designed byLucrezia Buccellati– feature the traditional maison’s jewellery-making techniques. For diamond lovers, the new Buccellati flower cut with 57 facets, in which every facet is ...
from VS to Flawless clarity. In the world of blue diamonds this upgrade would add a minimum of $500,000 per carat to the value of a smaller blue gem. To give Graff his due, he did not make the same mistake as the buyers of theAgra Pink, the recut followed the original facet ...
RUBY FACETIt is Chromium which produces the intense red of Ruby and the brilliant green of Emerald. In Garnet, Spinel, Sapphire, Peridot and Chrysoberyl it is Iron that is responsible for the more subtle red, blue and yellow colours. The best Sapphires are coloured by both Titanium and Iron...
The cut of a gemstone refers to the facet arrangement, proportions, and, often, the shape of the gem. Gemstones are cut in a way that best displays or accentuates their color, sparkle and brilliance. Learn About Cut CLARITY Gemstone clarity refers to how many—if any—inclusions are pre...