Welcome to the uber-private world of DeepDene, a Gilded Age country estate minutes from the center of Chestnut Hill. Built in 1890 for a railroad magnate, DeepDene shares its unusual name with the notorious 104+carat brilliant yellow diamond, generally believed to be the largest irradiated diamond in the world. While it remains a mystery if the diamond was named for the estate or vice-versa, one thing is perfectly clear. This coveted property is more than just a luxury home.a0; 2028;Surrounded by its own 3.7 acre manicured private park, DeepDene is found at the end of an exclusive private road, behind iron gates and a long winding driveway, just beyond the city limits.a0; Recently completed extensive restorations to the entire estate including its fairytale-like carriage house are executed in a classic, elegant palette integrating the best modern technology, products & finishes. These include: New custom kitchen & pantry with top of the line Viking & SubZero appliances, quartzite countertops and Calacatta marble backsplash.a0; 8.5 newly finished bathrooms, including dual primary en-suites with heated marble floors, one-piece Toto smart toilets and custom frameless glass showers. New high-efficiency HVAC systems controlled by a Smart-home App.a0; New walk-in dressing room with marble island & custom built-ins. New 2,000+ sf sandstone style entertainment terrace accessible from multiple rooms for easy indoor/outdoor entertaining. The list goes on and on... DeepDene appeals to both sides of your soul. The ultra-refined luxury of a 7 bedroom, 8.5 bath home with a full-size gym, sauna, massage/yoga room and a primary suite inspired by a famous hotel are just the beginning. There's a hidden ''speakeasy'' behind the library fireplace and a century-old wine vault & safe-room next to the elevator. You would be forgiven for believing you walked into a Ralph Lauren ad when you see the 4000+ sq. ft. Carriage House circa 1900, designed by the esteemed firm of Cope and Stewardson with its mahogany stables and all the amenities, including its soaring ''party barn,'' rustic chandeliers and hay loft. a0; It's a rare home that can be both impressive and welcoming all at the same time. This is that winning combination! The bottom line is - this is a turn key solution, just move in & enjoy your life. The hard works already been done!