Lab-created ruby. Emerald cut center. Baguette and round white side stones. An Art Deco-inspired combination where the ruby’s step-cut geometry, deep red color, and flanking baguettes together reference one of the most historically grounded ring designs in the twentieth century. July birthstone.

This lab ruby ring features a lab-created emerald-cut red ruby center stone held in a prong setting, flanked by baguette-cut and round brilliant-cut white lab-created side stones. The emerald cut’s step facets and rectangular outline give the ruby a bold, architectural footprint on the finger; the flanking baguettes extend that rectangular geometry horizontally along the ring’s face; and the round brilliant side stones between or adjacent to the baguettes provide a contrasting scattered sparkle that frames the ruby’s calm, deep step reflections. Available in 925 sterling silver, yellow gold plated, or rose gold plated in whole and quarter sizes from US 3 to 9 3/4. Handcrafted in Jaipur.

Ring Details

• Center Stone: Lab-created ruby — emerald cut (step cut), deep red, prong set
• Side Stones: Lab-created white stones — baguette cut and round brilliant cut
• Setting: Multi-prong — vintage-inspired architectural layout
• Metal Options: 925 Sterling Silver · Yellow Gold Plated · Rose Gold Plated
• Sizes Available: US 3 to 9 3/4 including quarter sizes
• Birthstone: Ruby is the July birthstone

About Ruby

Ruby is a variety of corundum (aluminum oxide, Al₂O₃) — the same mineral species as sapphire in all its colors. The distinction between ruby and sapphire is entirely one of color: corundum of any color other than red is called sapphire; red corundum is called ruby. Ruby’s red color is caused by trace amounts of chromium within the crystal structure. Chromium absorbs blue and yellow-green wavelengths of visible light and transmits red, which combined with corundum’s naturally high transparency produces the saturated, pure red that defines fine ruby. Chromium in ruby also causes fluorescence under ultraviolet light — the stone emits visible red light when exposed to UV, which is why fine rubies appear to “glows” with an almost internal fire in direct sunlight (which contains UV radiation). The difference between ruby and pink sapphire is a matter of chromium concentration: at lower chromium levels the transmitted color falls in the pink range; at higher concentrations it achieves the saturation classified as ruby. The threshold between the two is contested across gemological laboratories, making the ruby-vs-pink sapphire boundary a perpetual source of grading debate. Corundum’s hardness is 9 Mohs — the second hardest mineral after diamond — making ruby among the most durable colored gemstones for ring wear. The most prized natural rubies historically come from Mogok, Myanmar (Burma), whose “pigeon’s blood” rubies — a pure, slightly bluish-red with strong fluorescence — set the standard for fine ruby color in the international trade. Lab-created ruby has the same aluminum oxide composition, chromium color mechanism, fluorescence, and 9 Mohs hardness as natural ruby.

Emerald Cut Ruby: Step Facets and Deep Color

The choice of an emerald cut for a ruby center stone has specific optical and historical reasons. The emerald cut’s step facets produce large, broad, flat reflections rather than scattered brilliant sparkle — the “hall of mirrors” depth that allows the viewer to see deep into the stone’s interior. In a colored stone, this means the stone’s body color is displayed in large, unbroken planes rather than broken into rapid scattered flashes: the ruby’s deep red fills the step facets’ wide, flat faces fully, creating a rich, saturated impression of color depth. In a brilliant-cut ruby the same red color would be scattered and divided across 58 facets, producing a livelier but more fragmented impression of the stone’s color. The emerald cut also tends to show the stone’s color more accurately and deeply than a brilliant cut in strong overhead light, because the step facets’ large flat areas act as windows into the stone’s body color rather than as reflective surfaces that bounce white light back to the viewer. Ruby’s chromium fluorescence is particularly well showcased in an emerald cut: the large step facets’ flat, open surfaces allow the red fluorescent glow to read clearly from a distance.

Baguette Side Stones: The Art Deco Pairing

The combination of an emerald-cut center stone with baguette side stones is one of the most characteristic design signatures of Art Deco jewelry (1920s–30s). Art Deco designers consistently applied step-cut and geometric stones — baguettes, emerald cuts, Asscher cuts, and calibré-cut stones — in architectural, symmetrical layouts that emphasized horizontal and vertical geometry over organic or curved forms. The baguette’s rectangular shape and step-cut facets are geometrically consistent with the emerald-cut center: both cuts use parallel, horizontal step facets, and the baguette’s length axis aligned along the ring’s shank creates a continuous horizontal band of step-cut geometry across the ring’s face from shoulder to shoulder. The round brilliant side stones adjacent to or between the baguettes introduce a contrasting optical element — scattered multi-directional sparkle against the calm step reflections — creating the visual rhythm of brilliant-then-step-then-brilliant that frames the ruby center with both active sparkle and architectural calm. This layout — step-cut center flanked by baguettes with round brilliant accents — appears throughout Art Deco jewelry of the 1920s and was revived extensively in mid-century Retro jewelry of the 1940s–50s. It remains one of the most enduring reference points in vintage-inspired contemporary ring design.

Red and Gold: The Historical Pairing

Ruby and gold have been paired in jewelry across virtually every major jewelry-making tradition in history — from ancient Burmese and Indian royal jewelry through Byzantine and medieval European settings through Renaissance and Baroque pieces to Georgian, Victorian, and Art Deco designs. The pairing works for a straightforward colorimetric reason: yellow gold’s warm yellow tone and ruby’s warm red sit in adjacent positions on the warm end of the color spectrum, creating an analogous color relationship where the two colors reinforce rather than contrast each other. Rose gold’s pink tone similarly harmonizes with ruby’s red through shared warmth, but with a slightly cooler, more romantic register. Silver and white metal settings provide a neutral, high-contrast frame that allows the ruby’s red to read at full intensity without any warm undertone influence from the metal.

Care Instructions

• Remove before swimming, showering, or applying lotions and perfumes (especially for plated finishes)
• Ruby (corundum) is 9 Mohs — extremely durable; clean gently with warm water, mild dish soap, and a soft-bristled brush
• The emerald cut’s large open step facets show fingerprints and oils more readily than brilliant cuts — wipe the stone’s face gently with a soft lint-free cloth regularly
• The multi-prong setting benefits from periodic inspection to ensure all prongs remain secure
• Store in a padded box when not worn

Sizing & Packaging

Please refer to our size guide image before ordering. Your ring ships in secure protective packaging. Any display boxes or props shown in photos are for styling purposes only.

Questions about sizing, metals, or custom requests? Message us — we're happy to help.