About moissanite

Moissanite is a rare mineral composed of silicon carbide (SiC). First discovered in 1893 by French chemist and Nobel Prize winner Henri Moissan within a meteor crater in Arizona, this celestial stone was initially mistaken for diamond due to its striking similarities. Following years of extensive research, it was identified as a unique mineral and named in honor of its discoverer.

What makes moissanite truly extraordinary? It possesses physical and optical properties that not only rival but, in many cases, surpass those of a natural diamond.

The brilliance of a Bright Spark Moissanite ring.

Hardness & Durability. On the Mohs scale of mineral hardness, moissanite scores a 9.25–9.5, making it the second hardest gemstone in existence after diamond. It is significantly harder than sapphire or ruby, ensuring it cannot be scratched by daily wear and will maintain its crisp facets for a lifetime.

Refractive Index (Brilliance). Brilliance refers to a stone’s ability to reflect white light. While a diamond has a high refractive index of 2.42, moissanite surpasses it with a value of 2.65. This means moissanite reflects more light back to the eye, giving it a "depth" and brightness that is truly spectacular. Unlike Cubic Zirconia (2.18), which can look "glassy" or transparent at certain angles, moissanite remains vibrant and full of life from every perspective.

Dispersion (Fire). Dispersion is the "fire" of a gemstone—the ability to break light into a rainbow of spectral colors. Moissanite’s dispersion (0.104) is more than double that of a diamond (0.044). This results in breathtaking flashes of color that distinguish it from leucosapphire and other colorless stones.

Extreme Temperature Resistance. While a diamond begins to char at 800°C, moissanite can withstand temperatures exceeding 2000°C. This extraordinary heat resistance is a practical advantage, allowing for jewelry repairs and resizing without the risk of damaging the stone’s integrity.

The largest natural moissanite ever found (4.1mm), discovered in the Kishon River, Israel. Photo by Vered Toledo.

Because natural moissanite exists only in microscopic quantities—the largest ever found being a mere 4.1mm—all moissanite used in fine jewelry is artfully grown in a laboratory. While the concept was pioneered in the USA, technology has evolved significantly. Today, with the exclusive **Bright Spark Moissanite Cut**, these stones achieve a level of fire and brilliance that can surpass even the finest diamonds.

The Bright Spark Difference: Not All Moissanites are Equal

Many mass-market moissanites use a 6H-SiC crystal structure, which is cheaper to produce but often exhibits a yellow fluorescence in natural daylight, making the stone appear cloudy or tinted.

At **BS Jewelry**, we exclusively use the superior **4H-SiC polytype**. This high-purity crystal lattice is free from yellow fluorescence, ensuring your gemstone remains a luxurious, crisp D-color white under all lighting conditions.

Comparison: Our 4H-SiC Moissanite (left) stays perfectly white, while standard 6H-SiC moissanite (right) shows yellow fluorescence in daylight.

Furthermore, our signature **Bright Spark Moissanite Cut** features a "Hearts & Arrows" (H&A) precision. This master-level cutting technique ensures perfect symmetry and facet alignment, providing the 100% authentic look of an "Ideal Cut" diamond.

Hearts & Arrows precision guarantees the light performance of a top-tier diamond.

We stand behind the quality of every stone. All Bright Spark Moissanites come with a **lifetime warranty** on their optical properties, guaranteeing they will never fade, cloud, or lose their brilliance.

The Pitfalls of Low-End Imitations

While the market is flooded with inexpensive options like Cubic Zirconia (CZ), we categorize these as "temporary fashion jewelry" rather than fine jewelry. Here is why we do not recommend them for significant purchases like engagement rings:

• The "Clouding" Effect: CZ is a porous material. Over time, it absorbs skin oils, lotions, and detergents, causing it to turn milky and lose its sparkle permanently.
• Susceptibility to Scratches: With a hardness of only 8.5, CZ is easily scratched by common household dust (which contains silica). Within a year of daily wear, the facet edges become rounded and dull.
• Light Performance: CZ has a much lower refractive index, giving it a "glassy" appearance. It lacks the optical "depth" found in a Bright Spark Moissanite or a Lab-Grown Diamond.

At BS Jewelry, we believe fine jewelry should last a lifetime. For this reason, we exclusively work with stones that offer permanent beauty and heirloom-grade durability.

The Advantages of Bright Spark Moissanite

• Perfect Hearts & Arrows Cut: Engineered for maximum diamond-like light return.
• Zero Fluorescence: Pure, crisp white color in every environment.
• Elite Grading: Available in D-color and VVS1 clarity for our Premium range.
• Lifetime Assurance: A guarantee of everlasting beauty.

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