star sapphire
noun
: a sapphire that when cut with a convex surface and polished exhibits asterism
Example Sentences
Recent Examples on the Web A few months after unwitting construction workers discovered the world’s largest star sapphire cluster in a backyard in Ratnapura, a Sri Lankan gem company has shown off one of the biggest natural corundums ever found in the country. 
Rachel Cormack, Robb Report, 15 Dec. 2021 The stone was found in the gem-rich Ratnapura area where local people had previously found the world's largest star sapphire cluster in a backyard by accident. Reuters, CNN, 13 Dec. 2021 My something blue was a double-star sapphire ring my mother purchased in Jaipur during her travels in India. Alexandra Macon, Vogue, 2 Dec. 2021 That’s certainly true for one Sri Lankan gent, who accidentally unearthed the world’s largest star sapphire cluster while renovating his home in Ratnapura. Demetrius Simms, Robb Report, 11 Aug. 2021 The pendant with an untreated star sapphire and diamond center is detachable and the chain splits into two bracelet, circa 1930s. Beth Bernstein, Forbes, 1 Sep. 2021 That’s certainly true for one Sri Lankan gent, who accidentally unearthed the world’s largest star sapphire cluster while renovating his home in Ratnapura. Demetrius Simms, Robb Report, 11 Aug. 2021 That’s certainly true for one Sri Lankan gent, who accidentally unearthed the world’s largest star sapphire cluster while renovating his home in Ratnapura. Demetrius Simms, Robb Report, 11 Aug. 2021 Myrna Loy wearing her star sapphire engagement ring. Beth Bernstein, Forbes, 1 Sep. 2021 See More
Rachel Cormack, Robb Report, 15 Dec. 2021 The stone was found in the gem-rich Ratnapura area where local people had previously found the world's largest star sapphire cluster in a backyard by accident. Reuters, CNN, 13 Dec. 2021 My something blue was a double-star sapphire ring my mother purchased in Jaipur during her travels in India. Alexandra Macon, Vogue, 2 Dec. 2021 That’s certainly true for one Sri Lankan gent, who accidentally unearthed the world’s largest star sapphire cluster while renovating his home in Ratnapura. Demetrius Simms, Robb Report, 11 Aug. 2021 The pendant with an untreated star sapphire and diamond center is detachable and the chain splits into two bracelet, circa 1930s. Beth Bernstein, Forbes, 1 Sep. 2021 That’s certainly true for one Sri Lankan gent, who accidentally unearthed the world’s largest star sapphire cluster while renovating his home in Ratnapura. Demetrius Simms, Robb Report, 11 Aug. 2021 That’s certainly true for one Sri Lankan gent, who accidentally unearthed the world’s largest star sapphire cluster while renovating his home in Ratnapura. Demetrius Simms, Robb Report, 11 Aug. 2021 Myrna Loy wearing her star sapphire engagement ring. Beth Bernstein, Forbes, 1 Sep. 2021 See More Word History
First Known Use
1798, in the meaning defined above