家宝[kahou] heirloom
擬宝珠[giboshi] ornamental railing top
合成宝石[gouseihouseki] synthetic gems
国宝[kokuhou] national treasure
財宝[zaihou] treasure

三重宝冠[sanjuuhoukan] (papal) triple tiara
至宝[shihou] most valuable asset
七宝[shippou] the 7 treasures (gold, silver, pearls, agate, crystal, coral, lapis lazuli)
什宝[juuhou] treasured article
重宝がる[chouhougaru] to find useful

ダイヤの指輪[daiyanoyubiwa] diamond ring
一次線輪[ichijisenrin] primary coil
一輪[ichirin] one flower
一輪車[ichirinsha] unicycle
花輪[hanawa] wreath

競輪[keirin] keirin
金輪際[konrinzai] the deepest bottom of the earth
九輪[kurin] kurin (nine vertically stacked rings of a pagoda finial)
結婚指輪[kekkonyubiwa] wedding ring
月の輪[tsukinowa] moon (esp. full moon)