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Product Highlight: AGL Certified 7.31 Carat Ceylon Blue Sapphire & Diamond Ring

Dec 22, 2020

Product Highlight: AGL Certified 7.31 Carat Ceylon Blue Sapphire Platinum Diamond Cocktail Ring

One of the hottest shows on streaming television right now is Netflix’s The Crown. If you’ve been watching the fourth season, you’ll know Princess Diana is a central character to this season’s arc. And when it comes to Princess Diana and stones, there are few more memorable than her 12-carat oval blue Ceylon sapphire, surrounded by 14 diamonds. 

While Samuelson’s can’t lay claim to any crown jewels, we have come across a stunning 7.31-carat oval blue Ceylon sapphire surrounded by a halo of round brilliant cut diamonds. The diamonds alone weigh in at a whopping 1.40 carats. If you’ve ever had dreams of feigning royalty, such as wearing a ring like the one that now rests on Duchess Catherine Middleton’s finger, we’d be delighted to make that dream come true. 

Origin

Ceylon is an island in the Indian Ocean that was once colonized by the Portuguese, Dutch, and British. In 1948, it gained its independence from Britain and became known as Sri Lanka. However, its sapphires are still referred to as Ceylon sapphires due to its lengthy history. Ceylon sapphires have been mined on the island since as far back as the second century, and amazingly, it still produces incredible sapphires even today, despite centuries of mining. Ceylon sapphires are easily identified thanks to their true cobalt blue color.

Color

When we think of gemstone color, it’s important to consider hue, saturation and tone. Hue is generally known as the “color” of the gemstone, while saturation refers to the strength or weakness of the color. Finally, tone indicates how light or dark the stone is. These three components together are used to evaluate sapphires. In the case of this cocktail ring, we relied on the American Gemological Laboratories (AGL) to certify the color and origin – and in this case, the AGL certified that our stone was truly a Ceylon blue sapphire. 

Treatment

At one point, sapphires were so plentiful that lower-grade stones were stockpiled rather than sold. Today, many of those stones are heat treated to create the vivid colors that are preferred by buyers. Lower-grade sapphires are heated in furnaces with extreme temperatures for hours, days, or even weeks at a time to bring out that intense blue and enhance the stone’s clarity. To find a Ceylon sapphire that hasn’t been heat treated is considered rare. 

To confirm our suspicions about the sapphire’s origins, we had the gem verified by the experts at AGL. We were delighted to find out that there was no gemological evidence of heat or clarity enhancement – making this gemstone an exceptional find. By AGL standards, the more pure and saturated the gemstone is, the higher the value. 

While this ring doesn’t date as far back as the second century, or even the 19th, it still is an extraordinary piece, perfect for the right buyer. Finding a new home for beautiful pieces is a specialty of Samuelson’s and we’d love to be the ones to help you make the match. Visit our website to see more photos, or you contact us to make an appointment and see these beautiful gems firsthand. And think of it this way – by the time season five of The Crown rolls around, you’ll be wearing your very own Ceylon blue sapphire and diamond ring.  

https://www.1stdibs.com/jewelry/rings/cocktail-rings/agl-certified-731-carat-ceylon-blue-oval-sapphire-platinum-diamond-ring/id-j_9389502/

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