gem

I

(New American Roget's College Thesaurus)

n. jewel, stone; prize; work of art. See ornament, goodness.

II

(Roget's IV) n.

1. [A Jewel]

Syn. precious stone, gemstone, bauble, ornament; see Jewel 1 .

Types of gems include: diamond, emerald, ruby, pearl, brilliant, aquamarine, amethyst, topaz, turquoise, jade, opal, sapphire, garnet, carnelian, jacinth, beryl, cat's eye, chrysoprase, chalcedony, agate, bloodstone, moonstone, onyx, sard, lapis lazuli, chrysolite, carbuncle, coral, zircon, tourmaline, peridot.

2. [A highly valued thing or person]

Syn. Jewel, prize, treasure, pearl, pearl beyond price, flower, paragon, acme of perfection, masterpiece, trump, ace, nonpareil, beau ideal.

III

(Roget's 3 Superthesaurus) n.

jewel, precious stone, semiprecious stone, *rock, *ice, bauble.

WORD FIND

• blue: sapphire, aquamarine, turquoise, hyacinth

• carved in relief: cameo

• cutting device: lap

• diamond look-alike: zircon

• engraving: glyptics

• expert, cutter, polisher, dealer: lapidary

• fake: paste, rhinestone

• flaw: feather

• imperfectly transparent gem: loupe

• iridescent: pearl, moonstone, opal, cat’s eye

• green: emerald, beryl, aquamarine, jade, peridot

• magnifying glass used by jeweler: loupe

• oblong shape, cut in: baguette

• plane or individual cut: facet, culet, bezel, bezil

• purple: amethyst

• red: ruby, garnet, carnelian, sard, avena

• setting, groove and flange: bezel

• study of: gemology

• transparent: diamond

• weight: carat, karat

• yellow: topaz

see jewelry

IV

(Roget's Thesaurus II) noun Someone or something considered exceptionally precious: pearl, prize1, treasure. See VALUE.