The Rarity of a Natural Blue Diamond Ring

Natural blue diamonds are among the rarest and most coveted gemstones the earth has ever produced. Their extraordinary color is caused by trace amounts of boron absorbed into the diamond’s crystal lattice during formation billions of years ago — a geological process so precise and so uncommon that natural blue diamonds of any grade represent less than 0.1% of all diamonds ever mined. The Cullinan mine in South Africa remains the world’s most significant source of important natural blue diamonds, responsible for some of the most celebrated and historically significant stones ever certified by the GIA. To reach the Fancy Vivid grade — the absolute pinnacle of blue diamond color — a stone must display a depth and purity of blue that fewer than a handful of mines on earth have ever produced. A natural blue diamond ring of exceptional quality is not simply a breathtaking jewel — it is one of the most finite and irreplaceable objects the natural world has ever allowed to exist.

Natural Blue Diamond Rings by Color Grade

At Rosenberg Diamonds & Co. we carry natural blue diamond rings across all GIA certified color grades — each representing a different and equally extraordinary expression of natural blue color.

Fancy Vivid Blue — the highest and rarest color grade the GIA certifies for a natural blue diamond. A Fancy Vivid Blue diamond displays the strongest possible saturation and purity of blue — an intense, commanding color that represents the absolute pinnacle of what the earth has ever produced in this hue. A Fancy Vivid Blue diamond ring is among the rarest and most coveted jewels in the entire world.

Fancy Intense Blue — one grade below Fancy Vivid, a Fancy Intense Blue diamond displays a deep, rich, and breathtakingly beautiful blue that places it far above the softer tones of lower grades. A Fancy Intense Blue diamond ring is an extraordinary acquisition of exceptional rarity and enduring beauty.

Fancy Blue — a natural Fancy Blue diamond displays a pure and beautiful blue color of meaningful saturation — a stone of genuine rarity and visual impact that represents a remarkable entry point into the natural blue diamond market.

Natural Blue Diamond Rings by Shape

Natural blue diamond rings are available in a range of exceptional shapes — each presenting the stone’s extraordinary color and quality in an entirely different and equally breathtaking way. At Rosenberg Diamonds & Co. our team guides every client through the selection of both stone and shape to create a blue diamond ring of maximum visual impact and personal significance.

Asscher Cut — the asscher cut presents a natural blue diamond through deep, mirrored step facets that allow the stone’s extraordinary color to radiate evenly and beautifully from every angle — architectural, geometric, and unmistakably sophisticated.

Emerald Cut — the emerald cut displays the full depth and saturation of a natural blue diamond’s color through long, clean step facets and an open table — a shape that rewards the finest color grades and creates a blue diamond ring of breathtaking elegance.

Heart Shape — a natural blue diamond heart shaped ring is one of the most romantic and visually extraordinary jewels in existence — combining the most personal of all diamond shapes with the most commanding of all diamond colors to create a ring of extraordinary significance.

Marquise Cut — the marquise cut maximizes the visual presence of a natural blue diamond’s extraordinary color — its elongated, pointed silhouette creating a blue diamond ring of dramatic and commanding beauty unlike anything else in the fine jewelry market.

Round Brilliant — the round brilliant is the most timeless and universally celebrated of all diamond cuts, and in a natural blue diamond it produces a level of color saturation, brilliance, and fire that is simply without equal in the entire jewelry world.

Pear Shape — combining the brilliance of a round with the elongating elegance of a marquise, a natural blue diamond pear shaped ring is one of the most distinctive and breathtaking jewels available — a shape that showcases the stone’s extraordinary color with maximum visual impact.

Cushion Cut — the cushion cut brings a depth and richness to a natural blue diamond that complements its extraordinary color perfectly — its rounded corners and larger facets producing a rich, pillowy brilliance that has made it one of the most beloved cuts for blue diamonds among serious collectors worldwide.

Radiant Cut — the radiant cut combines the clean lines of an emerald cut with the brilliance of a round, producing a natural blue diamond ring of extraordinary visual impact — bold, bright, and entirely modern in its presentation of the stone’s remarkable color.

Oval Cut — the oval cut combines extraordinary brilliance with an elongating elegance that showcases a natural blue diamond’s color across the full face of the stone — one of the most flattering and sought after shapes for a natural blue diamond ring.