div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=document-mathematician-marcel-tolkowsky-in-1919-42-43-gemology-precious-stones-arehtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: WordPresscommathematician Marcel Tolkowsky in 1919 42 43 GEMOLOGY Precious stones are often cut in a brilliant cut to maximize the amount of light reflected by the stone … loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader036fdocumentsnetreader036viewer20220714206119e76fa575b277f1076b0dhtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=document-mathematician-marcel-tolkowsky-in-1919-42-43-gemology-precious-stones-arehtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: WordPresscommathematician Marcel Tolkowsky in 1919 42 43 GEMOLOGY Precious stones are often cut in a brilliant cut to maximize the amount of light reflected by the stone … loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader036fdocumentsnetreader036viewer20220714206119e76fa575b277f1076b0dhtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=document-mathematician-marcel-tolkowsky-in-1919-42-43-gemology-precious-stones-arehtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: WordPresscommathematician Marcel Tolkowsky in 1919 42 43 GEMOLOGY Precious stones are often cut in a brilliant cut to maximize the amount of light reflected by the stone … loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...