Hours Of Operations Ultra Diamonds Texas Katy 77494 Ultra Diamonds Hours of Operation and Location in Katy, TX 77494 4.2 - 41 votes 5000 Katy Mills Cir, Ste 440, Katy, TX 77494 (281) 644-2900 Get Directions Ultra Diamonds Hours Category: Accessories Jewelry Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore KatyView More Apparel Sam's ClubMarshallsTJ MaxxRoss Dress for LessBurlington Coat Factory Sports TargetBass Pro ShopsNikeSkechersReebok Jewelry Sam's ClubMarshallsHobby LobbyBurlington Coat FactoryCato Recommend For You Calvin Klein Tommy Bahama L'Eggs Hanes Bali Playtex Otlt Pro Image Naturalizer Shoes Boost Mobile City Electric Supply Loft Oshkosh B'Gosh Justice & Brothers