Introduction
Marquise lab grown diamonds are one of the most distinctive and elegant diamond shapes available today. Known for their elongated body and pointed ends, marquise diamonds create the illusion of a larger stone while offering exceptional finger coverage. For buyers looking to maximize visual size and sparkle without increasing budget, marquise lab grown diamonds are often an excellent choice.
Because lab grown diamonds offer the same physical, chemical, and optical properties as mined diamonds, choosing a marquise lab grown diamond allows you to enjoy a unique shape with outstanding value. Whether you are shopping for an engagement ring, anniversary gift, or custom jewelry piece, understanding how to compare marquise diamonds can help you make a smarter purchase.
In this guide, we explain what makes marquise lab grown diamonds special, how to evaluate quality, and what factors matter most when comparing certified options.
What Are Marquise Lab Grown Diamonds?
Marquise lab grown diamonds feature an elongated oval shape with pointed ends. The cut originated centuries ago and remains popular because of its elegant appearance and flattering proportions.
Like all lab grown diamonds, marquise diamonds are created in controlled laboratory environments using advanced technology that replicates the natural diamond formation process. The result is a real diamond that offers the same durability, brilliance, and beauty as a mined diamond.
The marquise shape belongs to the family of fancy-shaped diamonds and is often chosen by buyers who want something different from traditional round stones.
Why Choose Marquise Lab Grown Diamonds?
They Look Larger Than Other Shapes
One of the biggest advantages of marquise lab grown diamonds is their impressive face-up size.
Because of their elongated silhouette, marquise diamonds often appear larger than round diamonds of the same carat weight. This means buyers can achieve a bigger visual impact without paying for a higher carat size.
They Create a Slimming Effect
The elongated shape naturally makes fingers appear longer and more slender. This flattering effect is one reason marquise diamonds remain a popular engagement ring choice.
Excellent Value for Money
Lab grown diamonds already offer substantial savings compared to mined diamonds. When combined with a shape that maximizes visual size, marquise diamonds can provide outstanding value.
Many buyers discover they can purchase a larger, higher-quality diamond while staying within their desired budget.
Unique and Eye-Catching
Round diamonds dominate the market, but marquise diamonds offer a more distinctive look. Their elegant shape stands out while maintaining timeless appeal.
How Marquise Diamonds Compare to Other Lab Diamond Shapes
When comparing marquise lab grown diamonds with other popular lab diamond shapes, several differences become clear.
Marquise vs Round Lab Grown Diamonds
Round diamonds typically deliver the highest level of sparkle because their cut is optimized for light return.
However, marquise diamonds usually appear larger than round diamonds of equal carat weight and often cost less per carat.
For buyers prioritizing maximum brilliance, round diamonds may be ideal. For those seeking visual size and uniqueness, marquise diamonds are often the better option.
Marquise vs Oval Lab Grown Diamonds
Oval lab grown diamonds and marquise diamonds both create an elongated appearance.
Oval diamonds have softer curves and no pointed ends, while marquise diamonds offer a more dramatic and distinctive shape. Buyers who prefer a bold appearance often lean toward marquise.
Marquise vs Pear Shaped Lab Grown Diamonds
Pear shaped lab grown diamonds feature one rounded end and one pointed end.
Marquise diamonds have symmetrical pointed ends, creating a more balanced appearance. The choice often comes down to personal style preferences.
Marquise vs Emerald Cut Lab Grown Diamonds
Emerald cut diamonds emphasize clarity and elegance through step-cut facets.
Marquise diamonds prioritize brilliance and visual spread. Buyers seeking sparkle usually prefer marquise, while those wanting a clean, sophisticated look may choose emerald cuts.
What to Look for When Buying Marquise Lab Grown Diamonds
Cut Quality
Cut quality is one of the most important factors when evaluating marquise diamonds.
A well-cut marquise diamond should display:
- Balanced proportions
- Symmetrical pointed ends
- Even curves
- Strong light performance
- Attractive brilliance
Poorly cut marquise diamonds may appear uneven or fail to reflect light effectively.
Length-to-Width Ratio
The length-to-width ratio greatly influences a marquise diamond's appearance.
Common ratios include:
- 1.75 to 1.85: Slightly fuller appearance
- 1.85 to 2.00: Traditional marquise look
- Above 2.00: More elongated and dramatic
There is no universally perfect ratio. Personal preference should guide your choice.
Color Grade
The pointed ends of marquise diamonds can sometimes reveal color more easily than certain other shapes.
Many buyers find excellent value within the near-colorless range:
- G Color
- H Color
- I Color
These grades often appear white while providing better value than higher color grades.
Clarity Grade
Because marquise diamonds have brilliant-style faceting, they can hide many inclusions effectively.
For most buyers, eye-clean clarity is more important than pursuing extremely high clarity grades.
VS1, VS2, and many SI1 diamonds can offer excellent appearance and value.
Carat Weight
The elongated shape naturally maximizes perceived size, meaning buyers often do not need to increase carat weight to achieve a substantial look.
Comparing multiple diamonds side by side can help determine the best balance between size and quality.
Understanding the Bow Tie Effect
One characteristic frequently discussed in marquise lab grown diamonds is the bow tie effect.
A bow tie appears as a darker area across the center of the diamond. Small bow ties are common and often acceptable. However, a strong bow tie can reduce brightness and negatively affect appearance.
When comparing certified lab diamonds online, reviewing high-quality videos and images is essential to assess how visible the bow tie appears.
A well-cut marquise diamond should display strong brilliance with only minimal bow tie visibility.
Why Certification Matters
Certification provides independent verification of a diamond's quality characteristics.
When shopping for marquise lab grown diamonds, look for grading reports from respected laboratories. Certification confirms important details including:
- Carat weight
- Color grade
- Clarity grade
- Cut measurements
- Proportions
Certified diamonds make comparisons easier and help buyers make informed decisions.
If you are comparing multiple stones, reviewing their grading reports side by side can reveal which diamond offers the strongest overall value.
Best Ring Settings for Marquise Lab Grown Diamonds
The setting plays a major role in both appearance and protection.
Solitaire Settings
A solitaire setting highlights the marquise shape and allows the diamond to remain the focal point.
Halo Settings
Halo settings surround the center stone with smaller diamonds, creating additional sparkle and enhancing perceived size.
Three Stone Settings
Three stone designs combine a marquise center diamond with complementary side stones for a luxurious appearance.
East-West Settings
An east-west setting positions the marquise diamond horizontally across the finger, creating a modern and distinctive look.
Protective Prong Settings
Because marquise diamonds have pointed ends, protective prongs are highly recommended to reduce the risk of damage.
How to Find the Best Value Marquise Lab Grown Diamond
Finding the best value does not necessarily mean choosing the lowest price.
Instead, focus on balancing the factors that matter most:
- Strong cut quality
- Attractive proportions
- Near-colorless appearance
- Eye-clean clarity
- Reliable certification
Many buyers achieve the best results by prioritizing cut quality first, then selecting color and clarity grades that offer the best visual performance for their budget.
It can also be helpful to compare multiple certified diamonds rather than focusing on a single option immediately.
For additional guidance on shape selection, buyers can explore the Loose Lab Diamonds section and review the Shape Guide to compare different lab diamond shapes side by side before making a final decision.
Are Marquise Lab Grown Diamonds a Good Choice?
For many buyers, the answer is yes.
Marquise lab grown diamonds combine elegance, visual size, brilliance, and value in a way few shapes can match. Their elongated appearance creates a larger look than many other diamond cuts while maintaining a distinctive and sophisticated style.
When selected carefully, a certified marquise lab grown diamond can deliver exceptional beauty and strong overall value. By focusing on cut quality, proportions, certification, and visual performance, buyers can confidently compare options and choose a diamond that fits both their style and budget.