Diamond is generally not recommended for Kark (Cancer) ascendant. Diamond represents Venus (Shukra), which rules the 4th house (home, mother, comfort) and 11th house (gains, ambitions) for Cancer lagna. Venus becomes a functional malefic due to its lordship of the dusthana 11th house, potentially creating desires, restlessness, and complications in domestic peace, making it advisable to use with caution or avoid. 

Diamond Kark lagna ke liye generally avoid karna chahiye kyunki Venus aapka 4th aur 11th house ka malik hai. 11th house dusthana hone se ye functional malefic ban jata hai. Ghar mein shanti kam ho sakti hai aur iccha-aashaon mein adhikta aa sakti hai. Caution se hi pehne. 

Diamond (Heera) is the gemstone of Venus (Shukra), the planet of luxury, beauty, relationships, and material comforts. For Kark (Cancer) ascendant natives, Venus holds a complex position as it rules both the 4th house of domestic happiness and the 11th house of gains. This article examines whether wearing Diamond is beneficial for Cancer lagna individuals based on classical Parashari principles and provides complete guidance on gemstone therapy.