Estate Platinum Black Star Sapphire & Diamond Ring
Platinum Black Star Sapphire & Diamond Ring – 12ct Sapphire
Striking, dramatic, and beautifully crafted, this platinum ring showcases a captivating black star sapphire framed by a halo of sparkling diamonds. With its bold presence and classic elegance, it’s an extraordinary statement piece for collectors and lovers of rare gemstones.
At the center is a mesmerizing round black star sapphire weighing approximately 12 carats. This unique gemstone displays a distinct star-like phenomenon known as asterism, visible as a radiant six-rayed star that moves across the surface when exposed to direct light—one of the most enchanting natural optical effects in the gem world.
Surrounding the sapphire are 12 round brilliant-cut diamonds, totaling approximately 0.52 carats. Graded G–H color and SI1 clarity, the diamonds add vibrant contrast and crisp sparkle against the deep, velvety sheen of the sapphire.
The ring is crafted in platinum, offering exceptional durability, rich heft, and a cool-toned backdrop that enhances the gemstones’ beauty. It is a size 6.25 and stamped IRID PLAT, indicating a platinum alloy with iridium for added strength.
A dramatic and timeless piece, perfect for gemstone enthusiasts, collectors, or anyone seeking a bold and elegant ring with rare character.
Available exclusively at Springer’s Jewelers—New England’s trusted jeweler since 1870—with locations in Portland, ME; Bath, ME; and tax-free Portsmouth, NH.
Key Features:
Metal: Platinum
Center Stone: Black star sapphire, approx. 12 carats
Optical Effect: Asterism (six-rayed star)
Accents: 12 round diamonds
Total Diamond Weight: Approx. 0.52 carats
Diamond Grade: G–H color, SI1 clarity
Markings: Stamped IRID PLAT
Unique, luminous, and full of vintage allure, this black star sapphire and diamond ring is a truly remarkable piece of fine jewelry—destined to stand out in any collection.
Replacement Value: $3,500
Original: $3,000.00
-65%$3,000.00
$1,050.00
Description
Platinum Black Star Sapphire & Diamond Ring – 12ct Sapphire
Striking, dramatic, and beautifully crafted, this platinum ring showcases a captivating black star sapphire framed by a halo of sparkling diamonds. With its bold presence and classic elegance, it’s an extraordinary statement piece for collectors and lovers of rare gemstones.
At the center is a mesmerizing round black star sapphire weighing approximately 12 carats. This unique gemstone displays a distinct star-like phenomenon known as asterism, visible as a radiant six-rayed star that moves across the surface when exposed to direct light—one of the most enchanting natural optical effects in the gem world.
Surrounding the sapphire are 12 round brilliant-cut diamonds, totaling approximately 0.52 carats. Graded G–H color and SI1 clarity, the diamonds add vibrant contrast and crisp sparkle against the deep, velvety sheen of the sapphire.
The ring is crafted in platinum, offering exceptional durability, rich heft, and a cool-toned backdrop that enhances the gemstones’ beauty. It is a size 6.25 and stamped IRID PLAT, indicating a platinum alloy with iridium for added strength.
A dramatic and timeless piece, perfect for gemstone enthusiasts, collectors, or anyone seeking a bold and elegant ring with rare character.
Available exclusively at Springer’s Jewelers—New England’s trusted jeweler since 1870—with locations in Portland, ME; Bath, ME; and tax-free Portsmouth, NH.
Key Features:
Metal: Platinum
Center Stone: Black star sapphire, approx. 12 carats
Optical Effect: Asterism (six-rayed star)
Accents: 12 round diamonds
Total Diamond Weight: Approx. 0.52 carats
Diamond Grade: G–H color, SI1 clarity
Markings: Stamped IRID PLAT
Unique, luminous, and full of vintage allure, this black star sapphire and diamond ring is a truly remarkable piece of fine jewelry—destined to stand out in any collection.
Replacement Value: $3,500
















