Vtg designer 12k solid gold 0.1-0.12ct natural diamond rose heart petal pendant

Beautiful vintage 12k solid two-tone gold pendant charm with a very nice natural mined diamond approximately 0.10-0.12 ct. Stamped 12k and designer’s mark. Real gold NOT PLATED OR FILLED. 12k is a very uncommon mark Rose / peony blossom 3/4” Excellent vintage condition, professionally cleaned and ready to wear. Pendant only. Tagged catbird bc I feel like someone who likes catbird’s aesthetics will love it! It’s a true heirloom piece and looks like it comes from a classic movie! . Antique retro designer luxury filigree estate genuine authentic timeless Victorian stackable fine jewelry art nouveau deco bridal blue pave wedding prom anniversary hoop bling ring boho bohemian unique anthropologie chic natural tear drop pearl cut carat flower lariat eternity daisy promise solitaire valentine pear coin mejuri zoe chicco style stamped gem unisex men women girls stud set square cushion princess ctw party halo round engagement band diamond mom 10k 14k 18k solid cartilage earrings necklace platinum pink gift micro holiday Christmas birthstone knuckle key butterfly free statement heirloom purple strawberry loop double heart paperclip kays 950 delicate dainty wide full tri clarity color ice pinky horizontal rolo 585 750 encrusted crown zales cross multi rare nile vian inside out choker yellow love rhodium wrap stones earth rope brilliant setting tested bright clean eye pretty people tennis case snake huggie acid intricate twisted swirl infinity byzantine chain link baby sun