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Showing below up to 250 results in range #1 to #250.

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  1. (hist) ‎Faceting Designs ‎[151,295 bytes]
  2. (hist) ‎Refractometer ‎[54,784 bytes]
  3. (hist) ‎Origin determination ‎[41,989 bytes]
  4. (hist) ‎Polariscope ‎[32,685 bytes]
  5. (hist) ‎Causes of color ‎[25,676 bytes]
  6. (hist) ‎Luminescence ‎[22,983 bytes]
  7. (hist) ‎Course:Refractometer ‎[19,815 bytes]
  8. (hist) ‎Diamond ‎[18,756 bytes]
  9. (hist) ‎Amber ‎[18,083 bytes]
  10. (hist) ‎Opal ‎[17,948 bytes]
  11. (hist) ‎Garnet ‎[17,317 bytes]
  12. (hist) ‎Glossary of Terms ‎[17,239 bytes]
  13. (hist) ‎Pearl ‎[16,313 bytes]
  14. (hist) ‎Gemstone Treatments and Enhancements ‎[15,437 bytes]
  15. (hist) ‎Heat Treatment ‎[14,250 bytes]
  16. (hist) ‎Spinel ‎[14,009 bytes]
  17. (hist) ‎Sapphire ‎[11,330 bytes]
  18. (hist) ‎Course:Total internal reflection ‎[11,160 bytes]
  19. (hist) ‎Ruby ‎[10,696 bytes]
  20. (hist) ‎Origins of minerals ‎[10,679 bytes]
  21. (hist) ‎Math ‎[10,362 bytes]
  22. (hist) ‎Faceting ‎[10,079 bytes]
  23. (hist) ‎Introduction to Gemology ‎[9,870 bytes]
  24. (hist) ‎Easy Combination cutting MV ‎[9,866 bytes]
  25. (hist) ‎Tourmaline ‎[9,758 bytes]
  26. (hist) ‎Refraction ‎[9,718 bytes]
  27. (hist) ‎Specific Gravity ‎[9,519 bytes]
  28. (hist) ‎The Chemistry of Gemstones ‎[9,412 bytes]
  29. (hist) ‎Essays:Adding arrows ‎[9,190 bytes]
  30. (hist) ‎Color Filters ‎[8,998 bytes]
  31. (hist) ‎Hydrostatic Balance ‎[8,932 bytes]
  32. (hist) ‎Immersion cell ‎[8,890 bytes]
  33. (hist) ‎Emerald ‎[8,817 bytes]
  34. (hist) ‎Coding Help ‎[8,815 bytes]
  35. (hist) ‎Images:Inclusions ‎[8,807 bytes]
  36. (hist) ‎Sitesupport-url ‎[8,747 bytes]
  37. (hist) ‎Nephrite ‎[8,416 bytes]
  38. (hist) ‎Jadeite ‎[8,392 bytes]
  39. (hist) ‎Zircon ‎[8,257 bytes]
  40. (hist) ‎10x Loupe ‎[8,235 bytes]
  41. (hist) ‎Polarization ‎[8,094 bytes]
  42. (hist) ‎Course:Refraction ‎[8,047 bytes]
  43. (hist) ‎Table Of Contents ‎[7,707 bytes]
  44. (hist) ‎Images:Tourmaline ‎[7,665 bytes]
  45. (hist) ‎Color ‎[7,177 bytes]
  46. (hist) ‎Symmetry ‎[6,301 bytes]
  47. (hist) ‎Vesuvianite ‎[6,291 bytes]
  48. (hist) ‎Heavy Liquids ‎[6,254 bytes]
  49. (hist) ‎Spectroscope ‎[6,086 bytes]
  50. (hist) ‎Tanzanite ‎[6,073 bytes]
  51. (hist) ‎James Nelson ‎[6,014 bytes]
  52. (hist) ‎Dichroscope ‎[5,954 bytes]
  53. (hist) ‎Microscope ‎[5,922 bytes]
  54. (hist) ‎Double Refraction ‎[5,908 bytes]
  55. (hist) ‎Isomorphous replacement ‎[5,802 bytes]
  56. (hist) ‎Chrysoberyl ‎[5,711 bytes]
  57. (hist) ‎Maw-sit-sit ‎[5,692 bytes]
  58. (hist) ‎Hiddenite ‎[5,642 bytes]
  59. (hist) ‎Sheen ‎[5,594 bytes]
  60. (hist) ‎Course:Polarization ‎[5,484 bytes]
  61. (hist) ‎Elbaite variety "Laurellite" ‎[5,320 bytes]
  62. (hist) ‎Brilliance ‎[5,134 bytes]
  63. (hist) ‎Dispersion ‎[5,125 bytes]
  64. (hist) ‎The Chemical Classification of Gems & Minerals ‎[5,019 bytes]
  65. (hist) ‎Sillimanite ‎[4,824 bytes]
  66. (hist) ‎Willemite ‎[4,667 bytes]
  67. (hist) ‎Skull crucible ‎[4,625 bytes]
  68. (hist) ‎Faceting Design Competition Diagrams ‎[4,590 bytes]
  69. (hist) ‎Inclusions:Sapphire ‎[4,585 bytes]
  70. (hist) ‎Serendibite ‎[4,538 bytes]
  71. (hist) ‎Idocrase ‎[4,451 bytes]
  72. (hist) ‎Nature of light ‎[4,383 bytes]
  73. (hist) ‎Course:Optical properties ‎[4,378 bytes]
  74. (hist) ‎Kyanite ‎[4,246 bytes]
  75. (hist) ‎Topaz ‎[4,205 bytes]
  76. (hist) ‎Aquamarine ‎[4,189 bytes]
  77. (hist) ‎Color grading ‎[4,174 bytes]
  78. (hist) ‎Amethyst ‎[4,172 bytes]
  79. (hist) ‎Apatite ‎[4,161 bytes]
  80. (hist) ‎Hardness ‎[4,071 bytes]
  81. (hist) ‎Sea of Cortez pearl ‎[4,024 bytes]
  82. (hist) ‎Home ‎[3,936 bytes]
  83. (hist) ‎Synthetic moissanite ‎[3,921 bytes]
  84. (hist) ‎Crystallography ‎[3,782 bytes]
  85. (hist) ‎Cleavage ‎[3,756 bytes]
  86. (hist) ‎Spodumene ‎[3,737 bytes]
  87. (hist) ‎Coral ‎[3,733 bytes]
  88. (hist) ‎Synthetic forsterite ‎[3,690 bytes]
  89. (hist) ‎Pectolite ‎[3,669 bytes]
  90. (hist) ‎Main ‎[3,656 bytes]
  91. (hist) ‎Lapiz Lazuli ‎[3,649 bytes]
  92. (hist) ‎Alphabetic list by gemstone name ‎[3,643 bytes]
  93. (hist) ‎Quartz ‎[3,635 bytes]
  94. (hist) ‎Diaspore ‎[3,622 bytes]
  95. (hist) ‎Synthetic cubic zirconia ‎[3,618 bytes]
  96. (hist) ‎Poudretteite ‎[3,570 bytes]
  97. (hist) ‎Sphene ‎[3,538 bytes]
  98. (hist) ‎Advanced Testing Tools ‎[3,517 bytes]
  99. (hist) ‎Flame fusion ‎[3,517 bytes]
  100. (hist) ‎Reflection ‎[3,477 bytes]
  101. (hist) ‎Inclusions:Ruby ‎[3,424 bytes]
  102. (hist) ‎Alexandrite ‎[3,422 bytes]
  103. (hist) ‎Interference ‎[3,400 bytes]
  104. (hist) ‎Sublimation ‎[3,339 bytes]
  105. (hist) ‎Feldspar ‎[3,284 bytes]
  106. (hist) ‎Taaffeite ‎[3,246 bytes]
  107. (hist) ‎Beryl ‎[3,173 bytes]
  108. (hist) ‎Synthetic gemstones ‎[3,143 bytes]
  109. (hist) ‎Clinohumite ‎[3,081 bytes]
  110. (hist) ‎Danburite ‎[3,014 bytes]
  111. (hist) ‎Form ‎[2,987 bytes]
  112. (hist) ‎Grossular ‎[2,977 bytes]
  113. (hist) ‎Faceting Equipment ‎[2,938 bytes]
  114. (hist) ‎Datolite ‎[2,930 bytes]
  115. (hist) ‎Benitoite ‎[2,928 bytes]
  116. (hist) ‎Agate ‎[2,922 bytes]
  117. (hist) ‎Ametrine ‎[2,915 bytes]
  118. (hist) ‎Pezzottaite ‎[2,915 bytes]
  119. (hist) ‎Pleochroism ‎[2,903 bytes]
  120. (hist) ‎Californite ‎[2,806 bytes]
  121. (hist) ‎Iolite ‎[2,798 bytes]
  122. (hist) ‎Course:Dispersion ‎[2,786 bytes]
  123. (hist) ‎Maxixe ‎[2,742 bytes]
  124. (hist) ‎Crystal Systems ‎[2,653 bytes]
  125. (hist) ‎Goldstone ‎[2,646 bytes]
  126. (hist) ‎Jeremejevite ‎[2,565 bytes]
  127. (hist) ‎Spessartite ‎[2,550 bytes]
  128. (hist) ‎Collins - Pryamid4 Sneferu ‎[2,452 bytes]
  129. (hist) ‎Riesling ‎[2,451 bytes]
  130. (hist) ‎Zincite ‎[2,425 bytes]
  131. (hist) ‎Pyrope ‎[2,409 bytes]
  132. (hist) ‎Axinite ‎[2,398 bytes]
  133. (hist) ‎Andradite ‎[2,394 bytes]
  134. (hist) ‎Siderite ‎[2,356 bytes]
  135. (hist) ‎Boulder Opal ‎[2,308 bytes]
  136. (hist) ‎GPFDC ‎[2,292 bytes]
  137. (hist) ‎The Phenomenon of Color Change ‎[2,281 bytes]
  138. (hist) ‎Phenakite ‎[2,223 bytes]
  139. (hist) ‎Twinning ‎[2,192 bytes]
  140. (hist) ‎Sapphirine ‎[2,142 bytes]
  141. (hist) ‎Frequently Asked Questions ‎[2,090 bytes]
  142. (hist) ‎Akhavan - Void Reaver (test cut) ‎[2,079 bytes]
  143. (hist) ‎Collins - Illusion ‎[2,021 bytes]
  144. (hist) ‎Ekanite ‎[1,986 bytes]
  145. (hist) ‎Rock Crystal ‎[1,973 bytes]
  146. (hist) ‎Diffraction ‎[1,959 bytes]
  147. (hist) ‎Hauyne ‎[1,895 bytes]
  148. (hist) ‎Luster ‎[1,883 bytes]
  149. (hist) ‎Images:Sapphire ‎[1,872 bytes]
  150. (hist) ‎The Hodgkinson Method ‎[1,842 bytes]
  151. (hist) ‎Acknowledgments ‎[1,833 bytes]
  152. (hist) ‎Images:Amber ‎[1,822 bytes]
  153. (hist) ‎Copal ‎[1,816 bytes]
  154. (hist) ‎AUTHOR LAST NAME - DESIGN NAME ‎[1,803 bytes]
  155. (hist) ‎Visual Optics ‎[1,740 bytes]
  156. (hist) ‎Collins - Princess Trilliant ‎[1,652 bytes]
  157. (hist) ‎Hackmanite ‎[1,613 bytes]
  158. (hist) ‎Inclusions ‎[1,603 bytes]
  159. (hist) ‎Akhavan - Aperture Science (test cut).jpg ‎[1,580 bytes]
  160. (hist) ‎Sample page ‎[1,580 bytes]
  161. (hist) ‎Equipment used to identify gemstones ‎[1,553 bytes]
  162. (hist) ‎Fluorite ‎[1,550 bytes]
  163. (hist) ‎Shifter55 - Arrow Heart ‎[1,529 bytes]
  164. (hist) ‎Habit ‎[1,488 bytes]
  165. (hist) ‎Quahog ‎[1,485 bytes]
  166. (hist) ‎Kunzite ‎[1,435 bytes]
  167. (hist) ‎Shifter55 - DarkCrystal ‎[1,391 bytes]
  168. (hist) ‎Sunstone ‎[1,375 bytes]
  169. (hist) ‎Shifter55 - Transplant ‎[1,374 bytes]
  170. (hist) ‎Shifter55 - 110ChevronRectangleCC ‎[1,361 bytes]
  171. (hist) ‎Huynh - Beginner Asscher ‎[1,353 bytes]
  172. (hist) ‎Akhavan - Tessellation 10 (E) (test cut).jpg ‎[1,332 bytes]
  173. (hist) ‎Akhavan - Temple Ruins (test cut).jpg ‎[1,330 bytes]
  174. (hist) ‎Akhavan – Blue Happiness (test cut).jpg ‎[1,328 bytes]
  175. (hist) ‎Shifter55 - Neutrino ‎[1,323 bytes]
  176. (hist) ‎Shifter55 - Beginner Tetra ‎[1,323 bytes]
  177. (hist) ‎Vanadium Beryl ‎[1,291 bytes]
  178. (hist) ‎Shifter55 - Molniya ‎[1,287 bytes]
  179. (hist) ‎Sunset Quartz ‎[1,287 bytes]
  180. (hist) ‎Huynh - Beginner Trillion ‎[1,270 bytes]
  181. (hist) ‎Jasper ‎[1,268 bytes]
  182. (hist) ‎Huynh - Squashed ‎[1,259 bytes]
  183. (hist) ‎Tutorials ‎[1,232 bytes]
  184. (hist) ‎Shifter55 - Epimetheus ‎[1,228 bytes]
  185. (hist) ‎Shifter55 - Nonary Token ‎[1,224 bytes]
  186. (hist) ‎Course:Reflection ‎[1,223 bytes]
  187. (hist) ‎Akhavan – Longer and Steelier (test cut).jpg ‎[1,210 bytes]
  188. (hist) ‎Shifter55 - Ecie Going ‎[1,207 bytes]
  189. (hist) ‎Scapolite ‎[1,204 bytes]
  190. (hist) ‎2013 Minimalist 8 ‎[1,201 bytes]
  191. (hist) ‎Heliodor ‎[1,198 bytes]
  192. (hist) ‎Huynh - Hepta Heart ‎[1,192 bytes]
  193. (hist) ‎Huynh - Beginner Marquise ‎[1,182 bytes]
  194. (hist) ‎Almandine ‎[1,178 bytes]
  195. (hist) ‎Ammolite ‎[1,177 bytes]
  196. (hist) ‎Collins - Tri Ascher ‎[1,166 bytes]
  197. (hist) ‎Akhavan - Vincalis the Agitator (test cut).jpg ‎[1,153 bytes]
  198. (hist) ‎Akhavan - Shade's Abyss (test cut).jpg ‎[1,140 bytes]
  199. (hist) ‎Akhavan – Missed Connections (test cut).jpg ‎[1,137 bytes]
  200. (hist) ‎Akhavan - Eye of Zul (test cut).jpg ‎[1,127 bytes]
  201. (hist) ‎Shifter55 - Auriverde ‎[1,124 bytes]
  202. (hist) ‎Akhavan – Ruination (test cut).jpg ‎[1,116 bytes]
  203. (hist) ‎Shifter55 - Kozibe Dome ‎[1,116 bytes]
  204. (hist) ‎Akhavan – Tessellation 36 (test cut).jpg ‎[1,114 bytes]
  205. (hist) ‎Huynh - Pillow 1.25 ‎[1,107 bytes]
  206. (hist) ‎Course:Home ‎[1,105 bytes]
  207. (hist) ‎Shifter55 - BackgammonTri ‎[1,095 bytes]
  208. (hist) ‎Huynh - Beginner Shield ‎[1,086 bytes]
  209. (hist) ‎Shifter55 - 180 Garnet Scissor ‎[1,077 bytes]
  210. (hist) ‎Bixbite ‎[1,076 bytes]
  211. (hist) ‎Shifter55 - FVS Cushion Barion ‎[1,068 bytes]
  212. (hist) ‎Huynh - Beginner Tourm ‎[1,065 bytes]
  213. (hist) ‎(Klaja - Radiation) ‎[1,051 bytes]
  214. (hist) ‎Akhavan – FAC101 L8 (test cut).jpg ‎[1,034 bytes]
  215. (hist) ‎TableTemplate ‎[1,034 bytes]
  216. (hist) ‎Carroll Chatham ‎[1,032 bytes]
  217. (hist) ‎2013 Vindictive 4 ‎[1,025 bytes]
  218. (hist) ‎Diopside ‎[1,022 bytes]
  219. (hist) ‎Pyrite ‎[1,021 bytes]
  220. (hist) ‎Huynh - Beginner Rectangle Cushion aka Tsunami311 ‎[1,015 bytes]
  221. (hist) ‎Shifter55 - Kilovolt ‎[1,004 bytes]
  222. (hist) ‎Huynh - CZ Port ‎[999 bytes]
  223. (hist) ‎Ikeda - Tourm One By Two ‎[994 bytes]
  224. (hist) ‎Chrome Diopside ‎[991 bytes]
  225. (hist) ‎Huynh - Beginner Barion Oval aka Quake311 ‎[987 bytes]
  226. (hist) ‎2013 Vindictive 2 ‎[982 bytes]
  227. (hist) ‎Akhavan – Tessellation 29 (test cut).jpg ‎[982 bytes]
  228. (hist) ‎2013 Ostentatious 1 ‎[981 bytes]
  229. (hist) ‎2013 Ostentatious 2 ‎[975 bytes]
  230. (hist) ‎2013 Ostentatious 3 ‎[968 bytes]
  231. (hist) ‎2013 Ostentatious 4 ‎[968 bytes]
  232. (hist) ‎Akhavan - Leaf in the Wind (test cut).jpg ‎[966 bytes]
  233. (hist) ‎2013 Minimalist 7 ‎[965 bytes]
  234. (hist) ‎Andalusite ‎[965 bytes]
  235. (hist) ‎Azurite ‎[962 bytes]
  236. (hist) ‎Akhavan – Sierpinski’s Puzzle (test cut).jpg ‎[961 bytes]
  237. (hist) ‎Akhavan – Piatt's Oval (test cut).jpg ‎[960 bytes]
  238. (hist) ‎Auguste Verneuil ‎[957 bytes]
  239. (hist) ‎2013 Minimalist 3 ‎[957 bytes]
  240. (hist) ‎Akhavan – Tessellation 30 (test cut).jpg ‎[956 bytes]
  241. (hist) ‎2013 Minimalist 5 ‎[955 bytes]
  242. (hist) ‎2013 Minimalist 2 ‎[954 bytes]
  243. (hist) ‎2013 Minimalist 6 ‎[953 bytes]
  244. (hist) ‎2013 Vindictive 1 ‎[951 bytes]
  245. (hist) ‎2013 Minimalist 1 ‎[950 bytes]
  246. (hist) ‎2013 Minimalist 4 ‎[948 bytes]
  247. (hist) ‎2013 Vindictive 3 ‎[948 bytes]
  248. (hist) ‎(Klaja - Goran) ‎[946 bytes]
  249. (hist) ‎Akhavan - Tessellation 6 (O) (test cut).jpg ‎[946 bytes]
  250. (hist) ‎Akhavan - Emergent Phenomenon (test cut).jpg ‎[935 bytes]

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