In　this　account,　Dy(9.33-x)Lax(SiO4)6O2　crystals　were　grown　by　the　Czochralski　technique,　and　their　magneto-optical　properties　were　examined.　Rietveld　structural　refinement　of　XRD　patterns　illustrated　Dy(9.33-x)Lax(SiO4)6O2　possess　hexagonal　system　P63/m　with　oxyapatite　structure.　UV–Vis–NIR　spectroscopy　revealed　higher　transparency　in　the　420–700　nm　spectral　region　when　compared　to　PSO　and　TGG　crystals.　The　magneto-optical　properties　and　temperature　dependence　of　magnetic　susceptibility　demonstrate　that　Dy8.36La0.97(SiO4)6O2　crystals　show　paramagnetic　behavior　within　the　temperature　range　of　2–300　K　and　yield　a　Faraday　rotation　angle　which　is　approximately　1.16-fold　larger　than　that　of　Tb3Ga5O12　crystals.　Overall,　Dy8.36La0.97(SiO4)6O2　crystals　look　promising　for　applications　in　magneto-optical　devices　in　the　visible　wavelength　range.　©　2020　Elsevier　B.V.