Diamond Cuts & Gem Shapes

The Marquise Brilliant Cut Diamond

The Marquise Brilliant cut, often simply called the Marquise cut, is a classic and elegant diamond shape that resembles a tiny boat or an eye. Known for its elongated form and pointed ends, it maximizes carat weight and offers exceptional brilliance and fire, making it a popular choice for engagement rings and other fine jewelry. This distinctive cut has a rich history and unique characteristics that appeal to those seeking a sophisticated and striking gemstone.

Definition

The Marquise Brilliant cut is a modified round brilliant cut diamond. It features 57 or 58 facets (depending on whether the culet is faceted), including the table facet. Its shape is characterized by two pointed ends and a symmetrical, elongated outline, resembling the hull of a ship or a traditional eye shape. The cut is designed to enhance the diamond's brilliance and create an illusion of greater size compared to other cuts of the same carat weight.

Key Features

  • Elongated Shape: The most striking feature is its elongated outline with pointed ends, which can make the diamond appear larger than its actual carat weight.
  • Maximum Carat Weight Yield: The cutting process aims to preserve as much of the original rough diamond as possible, leading to a higher yield and potentially better value for its size.
  • Brilliance and Fire: Like the round brilliant, the Marquise cut is designed for optimal light performance, exhibiting excellent sparkle (scintillation), brightness (brilliance), and dispersion of light into spectral colors (fire).
  • Facet Arrangement: It typically has a crown angle around 34-36 degrees and a pavilion depth that balances light return. The specific facet arrangement, especially in the lower half of the diamond, is crucial for its signature sparkle.
  • Setting Versatility: The unique shape lends itself to various settings, including prong settings that protect the delicate points, bezels, and channel settings. It can also be paired with smaller accent stones.
  • Optical Illusion: The elongated shape can create an illusion of longer, more slender fingers when set in a ring.

Origin and History

The origin of the Marquise cut is often attributed to France in the 18th century, during the reign of King Louis XV. Legend has it that the cut was inspired by the shape of the lips of his mistress, the Marquise de Pompadour. The king commissioned a jeweler to create a diamond that resembled her smile. While the exact historical accuracy is debated, the association with French aristocracy and royalty has certainly contributed to the cut's enduring allure and sophisticated image. It gained significant popularity in the Art Deco period and has remained a classic choice ever since.

Types / Variations

While the standard Marquise Brilliant is the most common, variations exist primarily in the proportions and facet arrangements:

  • Proportions: The ideal length-to-width ratio is generally considered to be around 2:1, but some prefer slightly wider or narrower proportions based on aesthetic preference.
  • Facet Count Variations: While 58 facets is standard, some cutters may employ slightly different facet arrangements to emphasize specific qualities, such as maximizing sparkle or minimizing inclusions.
  • Symmetry: The symmetry of the two pointed ends and the overall balance of the cut are critical. Poorly cut marquise diamonds can have 'bow-tie' effects that are distracting or uneven light distribution.

How It's Made

Cutting a Marquise Brilliant diamond is a meticulous process that requires skilled craftsmanship. The process begins with a rough diamond that has a suitable shape and clarity. The diamond cutter must carefully map out the cut, paying close attention to:

  1. Cleaving and Sawing: The rough diamond is precisely cleaved or sawn to create the basic elongated shape with pointed ends.
  2. Bruting: The outline is shaped and smoothed to achieve the desired length-to-width ratio and symmetry.
  3. Girdling: A girdle is formed around the diamond's perimeter.
  4. Faceting: The crown (top portion) and pavilion (bottom portion) are cut with their respective facets. The arrangement of these facets is critical for maximizing light reflection and achieving the desired brilliance and fire. Special attention is paid to the critical points and the culet.
  5. Polishing: All facets are polished to a high degree of smoothness to enhance light performance.

The goal is to create a symmetrical cut with precise angles that return light efficiently, minimizing light leakage and maximizing sparkle, while also preserving as much of the rough diamond's weight as possible.

Grading & Quality Standards

Like all diamonds, Marquise cut diamonds are graded based on the Four Cs:

  • Color: Colorless to near-colorless grades (D-J) are preferred for white diamonds, though fancy colored diamonds can also be found in this cut. The pointed ends can sometimes show more color than the center.
  • Clarity: Aim for clarity grades like VVS (Very Very Slightly Included) or VS (Very Slightly Included) to ensure minimal inclusions. Inclusions near the points can be more noticeable and can pose a risk of chipping.
  • Carat: Carat weight refers to the diamond's mass. The Marquise cut's design helps it appear larger for its carat weight.
  • Cut: While the Four Cs primarily relate to the diamond's inherent qualities, the 'cut' quality for a Marquise diamond refers to its proportions, symmetry, and polish. Excellent symmetry is paramount, and the 'bow-tie' effect (a shadow in the center caused by light blockage) should be minimal or non-existent. The depth and angle of the pavilion facets are crucial for light return.

Buying Guide

When purchasing a Marquise Brilliant diamond, consider the following:

  • Length-to-Width Ratio: A ratio of 1.75:1 to 2.00:1 is common and widely accepted. However, personal preference plays a significant role. Discuss with your jeweler what ratio best suits your desired look.
  • Symmetry and Bow-Tie Effect: Examine the diamond closely for symmetry. A pronounced bow-tie shadow in the center can detract from the diamond's beauty. Look for a well-cut diamond where the bow-tie is subtle or absent.
  • Protecting the Points: The two pointed ends are the most vulnerable parts of a Marquise diamond and are prone to chipping. Choose a setting that offers protection, such as a V-prong setting or a bezel setting.
  • Setting Style: The Marquise cut looks stunning in solitaire settings, but also pairs beautifully with smaller diamonds on the band (like in a three-stone setting) or as a center stone in halo settings. Its elongated shape can make fingers appear longer and more slender.
  • Metal Choice: The metal choice can influence the diamond's appearance. Platinum or white gold complement the diamond's sparkle, while yellow or rose gold can provide a warm contrast.
  • Setting Orientation: While typically worn with the points vertically, some choose to wear the Marquise diamond horizontally or at an angle for a unique look.

Price Range & Value Factors

The price of a Marquise Brilliant diamond is influenced by the same Four Cs as other diamond cuts. However, due to its shape and the way it maximizes rough diamond yield, a Marquise cut can sometimes offer better value per carat compared to a round brilliant of equivalent quality.

  • Cut Quality: A well-proportioned and symmetrical Marquise cut with minimal bow-tie effect will command a higher price than a poorly cut one.
  • Color: As mentioned, color can be more apparent at the points, so choosing a diamond with a slightly higher color grade (e.g., G or H) might be advisable if you are sensitive to color.
  • Clarity: Clarity grades like VS1 or VS2 often offer excellent value, as inclusions may not be visible to the naked eye and do not compromise the diamond's structural integrity, especially if they are not near the points.
  • Size vs. Shape: The elongated shape gives an illusion of size, so a 1-carat Marquise might look as large as a 1.2-carat oval. This can make it a more budget-friendly option for achieving a desired visual impact.

Care and Maintenance

Marquise cut diamonds, like all gemstones, require proper care to maintain their beauty and integrity:

  • Regular Cleaning: Clean your diamond jewelry regularly with a soft brush, warm water, and mild dish soap. Rinse thoroughly and dry with a lint-free cloth.
  • Avoid Harsh Chemicals: Exposure to harsh chemicals, perfumes, lotions, and cleaning agents can dull the diamond's sparkle and may damage the metal setting.
  • Protective Settings: As the points are vulnerable, ensure the setting offers adequate protection. Regular checks of the prongs are recommended to ensure they are secure.
  • Separate Storage: Store your Marquise diamond jewelry separately from other pieces to prevent scratches and damage. Use a soft pouch or a lined jewelry box.
  • Professional Inspection: Have your jewelry professionally inspected and cleaned by a jeweler at least once a year to check for loose stones or wear and tear on the setting.

Pros and Cons

Pros:

  • Appears Larger: The elongated shape makes it look bigger than other cuts of the same carat weight.
  • Exceptional Brilliance: When well-cut, it offers fantastic sparkle and fire.
  • Unique and Elegant: Its distinctive silhouette stands out from more common shapes.
  • Good Value: Often provides more visual size for the price compared to round brilliants.
  • Flattering on Fingers: The shape can elongate the appearance of the wearer's fingers.
  • Facet Yield: The cut is efficient in maximizing the usable carat weight from a rough diamond.

Cons:

  • Vulnerable Points: The pointed ends are susceptible to chipping and damage.
  • Bow-Tie Effect: A pronounced bow-tie shadow can be an issue in poorly cut stones.
  • Color Sensitivity: Color may be more noticeable at the points.
  • Clarity Sensitivity: Inclusions near the points can be more visible and weaken the diamond.
  • Requires Protective Setting: Needs a setting that specifically guards the vulnerable points.

Famous Examples

While not as widely publicized as some other famous diamonds, the Marquise cut has graced many notable pieces:

  • The Lesotho Star Diamond: This large, near-flawless diamond was cut into several smaller stones, including a significant marquise-shaped diamond.
  • The Golden Jubilee Diamond: While primarily known for its unique cushion-modified brilliant cut, some discussions about historical cuts might reference its lineage or similar large marquise-style diamonds from earlier eras. (Note: The Golden Jubilee is primarily cushion-cut, this example is used for general reference to large, historic cuts that may have been compared or influenced by marquise shapes).
  • Various Royal and Celebrity Jewelry: Many historical royal jewels and modern celebrity engagement rings feature Marquise cut diamonds, often chosen for their regal appearance and ability to maximize perceived size.

Common Misconceptions

  • All Marquise Diamonds Have a Bow-Tie: While a common characteristic, a well-cut Marquise diamond will have a very minimal or virtually non-existent bow-tie effect. The severity depends heavily on the quality of the cut and the proportions.
  • The Cut is Only for Women: While traditionally popular for women's jewelry, the bold and elegant shape of the Marquise cut can be a striking choice for men's rings or cufflinks as well.
  • It's Always Cheaper Than a Round Diamond: While it often offers more perceived size for the price, the cost is still heavily dependent on the Four Cs. A high-quality Marquise can be as expensive, if not more so, than a comparable round diamond.

Related Terms

  • Diamond Cuts and Shapes
  • Round Brilliant Cut
  • Oval Cut
  • Pear Shape Cut
  • Emerald Cut
  • Princess Cut
  • Gemstone Faceting
  • Diamond Brilliance
  • Diamond Fire
  • Diamond Scintillation
  • Length-to-Width Ratio
  • Bow-Tie Effect
  • Jewelry Settings (Prong, Bezel, Halo)
  • The Four Cs (Color, Clarity, Cut, Carat)

FAQs

What is the ideal length-to-width ratio for a Marquise diamond?

The most common and widely accepted ratio is between 1.75:1 and 2:1. However, personal preference is key, and some may prefer slightly wider or narrower stones.

Are Marquise diamonds prone to chipping?

Yes, the pointed ends are the most vulnerable part of the diamond and can chip if struck hard. It is essential to choose a protective setting.

How can I minimize the bow-tie effect in a Marquise diamond?

Look for diamonds with excellent symmetry and proportions. The bow-tie effect is less pronounced in well-cut stones. Examining the diamond in person or requesting high-quality videos can help identify this.

Does the Marquise cut make fingers look bigger?

Yes, the elongated shape of the Marquise cut can create an optical illusion, making the wearer's fingers appear longer and more slender.

Is a Marquise diamond a good choice for an engagement ring?

Absolutely. It's a classic and elegant choice that offers significant sparkle and can appear larger than other cuts, making it a popular option for engagement rings.

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