The Jubilee Cut Diamond

The Jubilee cut diamond is a relatively modern innovation in diamond cutting, developed in the late 20th century. It is known for its distinctive eight-sided shape and its exceptional brilliance and fire. This cut is designed to maximize the optical properties of a diamond, producing a spectacular display of light.

Definition

The Jubilee cut is a type of modified round brilliant diamond cut. Its defining characteristic is its octagonal (eight-sided) shape, which is achieved by truncating the corners of a traditional round diamond. It typically features 76 facets, which is more than the standard 58 facets of a round brilliant cut, and includes a unique girdle design and a stepped crown or pavilion.

Key Features

• Shape: Octagonal (eight-sided) with a flat girdle.
• Facets: Typically 76 facets, more than the standard round brilliant.
• Brilliance: Engineered to maximize light reflection and return, creating intense sparkle.
• Fire: The arrangement of facets enhances the dispersion of white light into spectral colors.
• Girdle: Often features a unique stepped or decorative girdle.
• Crown and Pavilion: Can have variations in the arrangement of facets on the crown and pavilion to enhance optical performance.

Origin and History

The Jubilee cut was developed by Swiss gem cutter Regi F. G. D. Schouten in 1990. It was named in honor of the Dutch royal family’s jubilee celebrations. The goal was to create a diamond cut that offered superior brilliance and fire compared to existing cuts, while also providing a visually distinct and appealing shape. It represents an evolution in diamond cutting, building upon the principles of earlier brilliant cuts but introducing specific modifications for enhanced performance and aesthetic appeal.

Types / Variations

While the core concept of the Jubilee cut remains consistent, there can be minor variations in the exact facet arrangement and proportions by different cutters. These variations might slightly alter the balance of brilliance and fire, or the precise visual appearance of the octagonal shape. However, the fundamental octagonal outline and the increased facet count are the hallmarks of the Jubilee cut.

How It's Made

The creation of a Jubilee cut diamond involves highly precise and skilled diamond cutting. The process begins with a rough diamond, which is carefully mapped and planned to retain as much weight as possible while achieving the desired octagonal shape and facet count. The cutter then meticulously grinds and polishes each of the 76 facets, paying close attention to angles and symmetry. The unique girdle design is also a critical part of the cutting process, contributing to the diamond’s overall appearance and light performance. Advanced technology, such as laser inscription and computer-aided design (CAD), is often used to ensure the accuracy and consistency of the cut.

Grading & Quality Standards

Like all diamonds, Jubilee cut diamonds are graded based on the standard 4 Cs: Cut, Color, Clarity, and Carat Weight. However, for the Jubilee cut, the quality of the Cut is especially important due to the complexity of its facet arrangement. A well-executed Jubilee cut will exhibit exceptional brilliance, fire, and scintillation. Gemological laboratories like the GIA (Gemological Institute of America) can grade diamonds of any shape, providing reports that detail the 4 Cs and other characteristics.

Buying Guide

When purchasing a Jubilee cut diamond, consider the following:

• Certification: Always look for a diamond with a reputable grading report from a recognized laboratory (e.g., GIA, AGS).
• Brilliance and Fire: Examine the diamond in various lighting conditions to assess its sparkle and the play of colors. The Jubilee cut is known for its strong performance in these areas.
• Symmetry and Polish: Ensure the facets are well-aligned and the surface is smoothly polished for optimal light reflection.
• Color and Clarity: While the cut is a major factor for this shape, also consider your preference for color and clarity within your budget.
• Setting: The octagonal shape can lend itself to unique settings. Consider how the diamond will be set and if it complements the overall design.

Price Range & Value Factors

The price of a Jubilee cut diamond is influenced by the same factors as other diamonds: the 4 Cs. However, its unique cut and the skill required to execute it can sometimes command a premium compared to a standard round brilliant of similar quality. The rarity of this specific cut also plays a role. Prices can vary widely depending on carat weight, color, clarity, and the overall quality of the cut. Generally, larger carat weights and higher grades for color and clarity will increase the price significantly.

Care and Maintenance

Jubilee cut diamonds require the same care as other diamonds:

• Cleaning: Clean regularly with a soft brush, warm water, and mild dish soap. Rinse thoroughly and dry with a lint-free cloth. Ultrasonic cleaners can be used cautiously, but avoid them if the diamond has inclusions or treatments that could be damaged.
• Storage: Store diamonds separately in a soft pouch or lined jewelry box to prevent scratching other gemstones or jewelry.
• Professional Inspection: Have your jewelry professionally inspected and cleaned periodically by a jeweler, especially if it is set in a delicate mounting.
• Avoid Harsh Chemicals: Do not expose diamonds to household chemicals, chlorine, or abrasive cleaners, as these can damage the metal setting or, in rare cases, affect the diamond’s surface.

Pros and Cons

Pros:

• Exceptional Brilliance and Fire: Designed for maximum light performance.
• Unique Shape: Offers a distinct alternative to traditional round cuts.
• Symbolic Name: The name ‘Jubilee’ carries positive connotations.
• Enhanced Sparkle: The higher facet count contributes to a lively appearance.

Cons:

• Rarity: Less common than standard brilliant cuts, which can affect availability.
• Potential for Higher Cost: The specialized cutting may lead to a higher price per carat.
• More Prone to Chipping: Like any fancy cut with sharp edges, the corners can be more vulnerable if not protected by the setting.
• Less Familiarity: May not be as widely recognized by the general public as traditional shapes.

Famous Examples

While specific, widely publicized famous diamonds in the Jubilee cut are not as common as those in traditional shapes like the round brilliant or pear cut, the cut itself is a testament to modern diamond cutting innovation. Its fame lies more in its technical achievement and the spectacular results it produces rather than individual, historically significant stones.

Common Misconceptions

One common misconception is that the Jubilee cut is a historical cut. In reality, it is a modern innovation from the late 20th century. Another is that all diamonds with an octagonal shape are Jubilee cuts; however, other cuts can also result in an octagonal outline, but the specific facet arrangement and number of facets define the Jubilee cut.

Related Terms

• Modified Round Brilliant Cut
• Fancy Shape Diamond
• Diamond Facets
• Brilliance
• Fire (Dispersion)
• Diamond Cut Quality

FAQs

What is a Jubilee cut diamond?

A Jubilee cut diamond is a modified round brilliant cut characterized by its octagonal shape and typically 76 facets, designed to maximize brilliance and fire.

Is the Jubilee cut rare?

Yes, compared to standard round brilliant cuts, the Jubilee cut is less common, making it a rarer choice.

How does a Jubilee cut compare to a round brilliant cut?

The Jubilee cut often exhibits more intense sparkle and fire due to its higher facet count and specific design, while offering a unique octagonal appearance.

Are Jubilee cut diamonds more expensive?

They can be, due to the specialized skill and labor involved in cutting them, and their relative rarity. However, price is always dependent on the 4 Cs.

Can Jubilee cut diamonds be graded by GIA?

Yes, GIA and other reputable gemological laboratories can grade diamonds of any shape, including the Jubilee cut, providing a detailed report on their quality.