4.90 Carat Royal-Blue Cabochon Sapphire Diamond Platinum Ring

A classic blue sapphire diamond halo platinum ring! The sapphire weighs 3.90 carats and has a rich vivid blue color that is perfectly even across the entire stone. It has a lovely ov...

Dive into this 5.07 carat pool of brilliant blue sapphire! The 5 carat gem sapphire has a rich pure blue color that shines brightly in the light. It is complemented by 1.05 carats of...

An elegant platinum ring featuring a 7.32 carat indicolite tourmaline. It has the ideal rich slightly greenish-blue color that makes this gem so popular. It is complemented by round ...

A sweet and stylish ring featuring a 2.03 carat oval-shape sapphire with a fine rich blue color and great brightness. It is surrounded by 1.05 carats of round brilliant and baguette-...

A superb gem blue sapphire of extra fine quality takes center stage of this platinum made ring. The sapphire weighs 2.00 carats and has the perfect blue color...

A lovely gem sapphire with a rich and intense blue color takes center stage. It weighs 3.16 carats and has excellent clarity allowing the stone's natural fine color to shine. It is c...

Let me introduce myself to this one-of-a-kind melding of art and nature. In the early 1980’s. As a gemologist and designer craftsman, I cast a net to the nation’s gem dealers, searching for an extraordinary, rich blue, large, star sapphire cabochon for my personal use. I wished to turn this exciting gem into a signature piece that I would wear for advertising and on special occasions as an example of my work, never planning to sell it. The stars were aligned when destiny presented me with this totally natural, stary gem which pulled at my heart strings. This 15.62 carat star sapphire has a lovely, distinct full six-legged star which (like all such stars) is best seen in sunlight or incandescent light. (Most LEDS won’t pick up the star.) I left the one dark natural sapphire crystal underneath the stone exposed, that proves it’s genuine but does not detract from above. There are no major flaws or cracks, just beauty. It took me several years (shoemaker’s children) of dreaming of potential designs as I worked through a number of potential designs and revisions. Following my sketches and seat-of-the-pants wax carving, this one-of-a-kind design evolved which allows the ring to sit back on the hand to prevent turning and makes the finger appear longer. I added a sweep of .90 carats of fiery princess cut F-G/VS diamonds to reflect the dome of the translucent cabochon and to protect it. This diamond quality if far above that used in normal production pieces but was for my own pleasure. I also added curves to the platinum to further reflect the smoothness of the gem. The result is an ergonomically designed, comfortable showpiece which can be worn all day as well as for special occasions. For over 40 years Martha Richter has exhibited her unique work in numerous states by participating in juried fine art fairs and American Council...

Circa 1950s, 18k, American. Elegant simplicity, this fifties ring is all about the gorgeous, vivid finely-hued 4.90-carat green tourmaline. Perfect in any moment of fashion, it is ...

A unique ring showcasing a 3.20 carat cabochon blue sapphire, accented by four square shape blue sapphires weighing 0.45 carats total. Bezel set in a platinum mounting. Sizable upon ...

A Dazzling Blue Zircon and Diamond Ring! Blue Zircon is a natural stone mined in different parts of the world, mainly Sri Lanka, Myanmar, and Australia. This Blue Zircon is 4.00 Ca...

Top Gem 20.12 carat, vivid royal blue Ceylon sapphire set in platinum mounting with 2.65 carats of collection color/clarity round brilliant diamonds

A Boucheron 4.90 carat sapphire and diamond cluster ring in platinum, circa 1950. This exceptional ring is set to its centre with a stunning oval cut sapp...