Rare 5.04 Ct Unheated Royal Blue Sapphire & Diamond 18K Ring

This is spectacular - a color changing Sapphire that changes from deep gray/blue/green to purple to pink, and is totally natural and unheated/untreated. This is a certified natural sapphire, mined in Tanga, Tanzania. In indoor lighting, this sapphire is a pinkish/grayish/purple; in the sunlight it is a bluish/grayish/teal - with the same beautiful color changing physical properties as Alexandrite. In incandescent lighting and candlelight, it is a beautiful pink color. Most color change sapphires change from blue to purple and are rare. The colors this gemstone exhibits are very rare. Unheated/untreated color change sapphires are very, very rare. This sapphire is truly unique and spectacular. So spectacular, in fact that we put it in a setting surrounded by 1.5 carats of colorless, VVS clarity full-cut diamonds in 18K yellow gold. A truly one-of-a-kind gemstone ring from California Girl Jewelry...

Elegance Redefined: The Kashmir "Mint" Indicolite Tourmaline Ring A Gemstone Fit for the Red Carpet Step into the world of extravagance and allure with the Kashmir "Mint" Indicolit...

There are few rubies that make the heart skip a beat - this is one of them. Absolutely perfection. This ruby is beautiful, over 2 carats and has the best color possible - real red, I...

Behold this very rare, cushion-cut alexandrite. To complement such a gemstone we made a setting in solid 18K yellow gold with a diamond swirl basket and larger colorless diamonds on...

This is a rare and spectacular sphene. Its origin is Madagascar, and due to its chromium content, the color is a magnificent green with major rainbow sparkle. The color for sphene is rare, and usually sphenes are included, but this one is eye clean and has major light prismatic dispersion. Also known as sphene titanate, this is one of the world's most spectacular gemstones. This gemstone has a very high refractive index, and a dispersion (prismatic effect) that far exceeds diamonds. It is commonly referred to as a "Christmas tree flash". Bright sunlight gives you the 'rainbow' color flashes. This gemstone's rare clarity, color saturation and size (above 1 carat is rare), make it one of the rarest of the sphenes. We designed this setting that complements sphene's color and sparks with a 2-sided halo around the gemstone [one with large diamonds that face up, one with smaller diamonds that are at a 90 degrees]. We added a satin finish to draw the eye to the sparkling diamonds and magnificent sphene! Made by women for women. Gemstone Natural Chrome Sphene...

This is a very rare, oval cut natural, earth-mined alexandrite. It's eye clean and exhibits unmistakable colors and sparkle of one of the rarest gemstones on earth. It is set in solid 18K white gold with a double halo of brilliant, bright sparkling diamonds and diamonds on the band. The inner halo is comprised of baguettes, while the outer halo has swirls of diamonds - completing the show-stopping effect of this rare gemstone ring...

New 18kt white gold sapphire ring, set with unheated round cut natural blue Ceylon sapphire, measuring 9.64 x 9.51 x 6.77 mm with a carat weight of 5.04 ct. Type II, Medium, moderate...

Old South Jewels proudly presents... VINTAGE LUXURY. GIA CERTIFIED 18K GOLD HUGE 12.04 CARAT UNHEATED SAPPHIRE DIAMOND ANTIQUE RING & BOX! HUGE 9.52 CARAT BRILLIANT ROYAL BLUE GIA CERTIFIED RARE NO HEAT NATURAL SAPPHIRE. This Gorgeous Sapphire Is Crowned With 2.52 Carats of Sparkling Clear VS White Diamonds in Luxurious 18K Solid Gold. Comes With GIA Paperwork. Certified No Heat, and Transparent. Includes GIA Prestigious Origin Report from Sri Lanka. Finest Sought After Royal Blue / Cornflower Color. Most Sought After Rich Velvety Royal Sapphire... What an Impressive Huge Engagement Ring This Would Make...STUNNING! Regal Ring Fit for a Princess... THE COLOR IS FINE RICH ROYAL BLUE Extremely Rare to Find This Brilliant Color Sapphire Untreated Natural Gem. The Huge Transparent BRILLIANT ROYAL BLUE SAPPHIRE TRANSPARENT AND GLOWS FROM WITHIN...This Sapphire is Very Rare. SIZE: Beautiful Ring 20 MM Long x 19 MM Wide (Over 3/4 inches long x 3/4 inches Wide). Won't be missed sparkling from across the room! Beautifully Kept in Gold-Embossed Vintage Leather Ring Box...

Certified Sapphire, Royal Blue Natural Unheated Sapphire, and Diamond Ring, set in an excellent quality hand-made mount in platinum with English/British hallmarked London 2016, Plati...

Stylish estate 1ct royal blue sapphire & diamond ring (circa 2000s) crafted in 18 karat white gold. Oval faceted royal blue sapphire is estimated at 1 carat, accented with 8 marqui...

This is a gorgeous Royal Blue Sapphire Diamond Snake Bypass Ring in 18 Karat White Gold. The wedding or engagement ring is also perfect as your favo...

A beautiful 18k white gold royal blue sapphire and diamond ring. The royal blue octagonal step-cut sapphire weighs 3.04ct and displays signs of heat treatment. Set to either side of ...