Lot 72 4.07-Carat Natural Fancy Purplish Pink VS2 Clarity Excellent Polish Diamond Ring. Estimate: HK$ 10,500,000 - 15,000,000/US$ 1,346,000 - 1,920,000. HONG KONG.-Tiancheng International Jewellery and Jadeite Spring Auction will take place on 7 July, showcasing a vast selection of natural coloured gemstones, diamonds and jadeite pieces. Leading the sale is a magnificent 10.25-carat natural unheated Burmese Mogok ruby. Suffused with fiery “pigeon’s blood” colour intensity and unearthed from the celebrated Mogok mine, this gem is an exceptional choice for one’s trophy collection. Ms. Connie Huang, Head of Tiancheng International’s Jewellery Department, remarks, “We are pleased to present our carefully curated auction to connoisseurs. With the COVID-19 pandemic still affecting all spheres of life, we have handpicked a more refined selection of gemstones and opulent jadeite, alongside a variety of branded jewels, designer pieces and exquisite watches. Tiancheng International hopes to offer a dazzling spectacular for our discerning clients as COVID-19 is showing signs of subsidence in Asia.” The Preview of the Spring Auction will be held from 4 to 6 July (10am to 6pm), and the Auction will take place on 7 July 2020 (Tuesday, 1pm) at 30/F Bank of China Tower, 1 Garden Road, Central, Hong Kong. HIGHLIGHTS“Pigeon’s Blood” Rubies Lot 146 10.25-Carat Natural Unheated Burmese Mogok “Pigeon’s Blood” Ruby and Diamond Ring Estimate: HK$ 25,000,000 - 35,000,000/US$ 3,200,000 - 4,488,000In recent years, high-quality Burmese rubies have become increasingly rare as mines in Burma deplete. Among them, those weighing 5 carats or above and with the “pigeon’s blood” hue are like gold dust. The present lot is a natural unheated ruby originating from the prestigious Mogok mine in Burma. Displaying saturated red hue and unrivalled translucency, it is certified to possess the “pigeon’s blood” colour by American Gemological Laboratories (AGL), GemResearch Swisslab (GRS) and Swiss Gemmological Institute (SSEF), making it a paragon of rubies. The surrounding 16 pear-shaped white diamonds, totalling 8.33 carats, bring out the fiery prominence of the treasure that set every heart aflutter. Lot 145 5.63 and 5.06-Carat Natural Unheated Burmese “Pigeon’s Blood” Ruby and Diamond Earrings Estimate: HK$ 6,500,000 - 9,500,000/US$ 833,300 - 1,218,000These luscious…