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Deux listes, pas une

Pierres de naissance par mois

La liste de cette page est américaine : adoptée par la National Association of Jewelers à Kansas City en 1912, puis modifiée trois fois, en 1952, 2002 et 2016. C’est une norme commerciale, pas une tradition. Le tableau donne la liste telle qu’adoptée et telle qu’elle est aujourd’hui, et signale les mois où elles diffèrent.

A hand-coloured plate of two rock fragments studded with dark blood-red dodecahedral garnet crystals, one bedded in grey-green schist and one in rusty brown matrix, with two loose crimson crystals and two outline diagrams of the twelve-sided form.GarnetjanvierA hand-coloured plate of two quartz specimens: above, a crust of small violet amethyst points on a pale cream nodule; below, a larger broken mass crowded with faintly purple, sharply pyramidal quartz crystals over its whole upper surface.AmethystfévrierA hand-coloured plate of a large broken beryl crystal, its vertical faces finely striated and shading from sea-green through milky white to buff, with a smaller weathered prism beside it and an outline diagram of the six-sided crystal below.AquamarinemarsA hand-coloured plate of seven diamonds. Five are drawn as fine outline diagrams showing the facet patterns of brilliant, rose and table cuts; two are fully coloured deep blue-black brilliants, one seen face-on and one in profile.DiamondavrilA hand-coloured engraving of two emerald specimens: a slender deep-green hexagonal prism lying across a pale grey calcite matrix, and below it a large blocky green crystal seated in white rock speckled with small green grains.EmeraldmaiA single valve of the pearl oyster shown against a black ground inside an ornamental printed border: the shell is creamy white with concentric growth lines and a notched hinge, and one small round pearl sits attached to the nacre near its right edge.PearljuinA hand-coloured engraving of nineteen numbered corundum crystals in rows, most of them rose and crimson ruby, barrel-shaped or six-sided; also an orange-brown prism, a pale grey star-stone, and at lower right one large deep blue sapphire crystal.RubyjuilletA chromolithograph headed Epidote, Garnet and Olivine. Low on the plate a pale yellow-green olivine crystal with a flat terminated top, and at the right the same stone cut as a vivid grass-green oval, among dark red garnets and green epidote.PeridotaoûtA hand-coloured plate headed Colored Stones. At top left a deep blue cushion-cut sapphire; at top centre a large rough blue-grey sapphire showing a white six-rayed star; below them ruby, amethyst, yellow and orange stones, pale green cabochons and banded agate slices.SapphireseptembreA hand-coloured engraving of a single opal nodule set alone on the page: an irregular water-worn lump whose broken face is milky blue-green and cream with faint yellow patches, edged along the underside by a rough dark brown weathered crust.OpaloctobreA chromolithograph of topaz: a pale blue crystal seated in buff matrix, a tall deep golden-orange striated prism, a lemon-yellow crystal on a druse of white crystals, a small rose-red prism, and cut stones in pale blue, amber, yellow and pink.TopaznovembreA hand-coloured engraving of three turquoise specimens one above another: a pale blue-green crust broken into rounded patches within a dark green rind, a knobbly botryoidal mass, and a flat splintery slab of clear sky-blue turquoise seen edge-on.Turquoisedécembre
MoisListe actuelleLa liste de 1912
janvierGarnetGarnet
févrierAmethystAmethyst
marsAquamarine, Bloodstone (modifié depuis 1912)Bloodstone, Aquamarine
avrilDiamondDiamond
maiEmeraldEmerald
juinPearl, Moonstone, Alexandrite (modifié depuis 1912)Pearl, Moonstone
juilletRubyRuby
aoûtPeridot, Spinel, Sardonyx (modifié depuis 1912)Sardonyx, Peridot
septembreSapphireSapphire
octobreOpal, TourmalineOpal, Tourmaline
novembreTopaz, Citrine (modifié depuis 1912)Topaz
décembreTurquoise, Zircon, Tanzanite (modifié depuis 1912)Turquoise, Lapis lazuli

5 des douze mois ont changé depuis 1912, signalés ci-dessus. La liste de 1912 est celle que G. F. Kunz a imprimée dans The Curious Lore of Precious Stones (1913) ; celle d’aujourd’hui est celle du GIA. Les pages de détail vers lesquelles pointent ces liens sont en anglais.