A striking ring with a large sapphire weighing 3.5 carats. It is an Australian sapphire so it is quite dark blue with greenish flashes in certain light. It is surrounded by good evenly matched white diamonds. It was made circa 1950. The mines of Australia have produced more commercial-grade blue sapphire than any other source in history. The typical Australian sapphire is dark blue color with a strong green dichroism, and color zoning. Crystals average about three carats in size. Deposits are located in two main areas on the eastern part of the continent. The gem fields at Anakie in Queensland, and the New England district of New South Wales. After the late 1970s, sapphire production in Queensland declined as new sources were developed in Thailand and Madagascar.<\/p>\n","protected":false},"excerpt":{"rendered":"
A striking ring with a large sapphire weighing 3.5 carats. It is an Australian sapphire so it is quite dark blue with greenish flashes in certain light. It is surrounded by good evenly matched white diamonds. It was made circa 1950. The mines of Australia have produced more commercial-grade blue sapphire than any other source […]<\/p>\n","protected":false},"featured_media":100000027412,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[5308],"product_tag":[],"class_list":{"1":"product","6":"product_cat-uncategorised","7":"type-vintage-engagement-rings","8":"type-vintage-rings","9":"period-mid-century","10":"material-diamond","11":"material-gold","12":"material-metals","13":"material-precious-stones","14":"material-sapphire","15":"ring-styles-cluster","16":"ring-central-stone-sapphire","17":"birthstone-september-birthstone","19":"first","20":"instock","21":"shipping-taxable","22":"purchasable","23":"product-type-simple"},"acf":[],"yoast_head":"