Explore our curated selection of IGI-certified 3 Carat Marquise Cut Lab Grown Diamonds—real diamonds, responsibly grown, and precision-graded for lasting value.
About 3 Carat Marquise Cut Lab Grown Diamonds
3 Carat Marquise Cut Lab Grown Diamonds – Elegant Brilliance with Distinctive Silhouette
A 3 carat marquise cut lab grown diamond combines graceful proportions with captivating sparkle. Known for its elongated shape and pointed ends, the marquise cut maximises surface area and creates a striking visual profile that flatters the finger and enhances presence. For UK buyers seeking a diamond that feels refined, dramatic and uniquely beautiful, a 3 carat marquise cut is an exceptional choice.
Created using advanced CVD and HPHT technology, lab grown diamonds share the same chemical composition, hardness and optical performance as mined diamonds. At Variation, every 3 carat marquise cut diamond is IGI-certified and carefully selected for symmetry, proportion and light performance — ensuring brilliant sparkle with ethical, sustainable creation.
Why Choose a 3 Carat Marquise Cut Diamond?
The marquise cut is admired for its elongated silhouette and brilliant faceting pattern, which enhances fire and scintillation while creating a dramatic, elegant profile. At 3 carats, this cut offers commanding presence with refined sophistication.
Key Features
Elongated shape with pointed ends for flattering finger coverage
Brilliant faceting for dynamic sparkle and fire
IGI-certified lab grown diamond
Ethical, sustainable and fully traceable origin
Distinctive profile that enhances both modern and classic jewellery designs
A 3 carat marquise cut diamond offers elegant brilliance with a distinctive silhouette.
Why UK Buyers Choose Variation
Variation is trusted across the United Kingdom for precision diamond selection, verified certification and transparent value. Each marquise cut diamond is evaluated for cut symmetry, proportion and light performance — essential elements that ensure balanced brilliance in this elongated shape.
What Sets Variation Apart
IGI-certified grading for complete confidence
Premium colour grades (D–F)
High clarity ranges (VVS–VS)
Ethical, conflict-free diamond creation
Direct-from-manufacturer pricing
Every Variation diamond reflects expert craftsmanship and responsible modern luxury.
Ideal Uses for a 3 Carat Marquise Cut Diamond
With its refined shape and brilliant sparkle, a 3 carat marquise cut diamond is ideal for jewellery designs that prioritise elegance, sophistication and visual impact.
Popular Jewellery Choices
Marquise cut engagement rings
Luxury solitaire rings
Halo and side-stone ring designs
Statement pendants
Bespoke and custom-designed jewellery
Its distinctive profile and vibrant brilliance make it especially appealing to UK buyers seeking elegant statement jewellery.
IGI Certification – Trusted Assurance for UK Customers
Every 3 carat marquise cut diamond from Variation includes an IGI certificate, providing verified grading details and complete transparency.
Your IGI Certificate Includes
Cut, polish and symmetry grades
Colour grade (D–F)
Clarity grade (VVS–VS)
Carat weight and precise measurements
Laser inscription for authenticity
This ensures confidence, trust and global recognition for UK buyers.
Sustainable & Ethical Diamond Creation
Variation diamonds are grown using environmentally responsible processes that significantly reduce ecological impact while maintaining exceptional beauty and structural integrity.
Our Ethical Commitments
Zero mining and reduced environmental footprint
Fully traceable diamond growth
Lower carbon impact compared to mined diamonds
Responsible, inventory-free production
Transparent and fair pricing
A 3 carat marquise cut lab grown diamond represents modern luxury with a responsible future.
UK-Wide Delivery and Transparent Value
Variation offers secure, insured and trackable delivery throughout the United Kingdom, ensuring a seamless and trustworthy buying experience.
You receive:
IGI-certified 3 carat marquise cut lab grown diamond
Direct-from-manufacturer pricing
Clear, consistent and transparent value
Insured UK-wide delivery
Authenticity documentation
Our approach ensures premium quality paired with honest, accessible pricing.
Elegant Silhouette with Ethical Modern Craftsmanship
A 3 carat marquise cut lab grown diamond from Variation delivers elegant brilliance, distinctive geometry and sustainable luxury. It is the ideal choice for UK customers seeking a diamond that feels refined, contemporary and responsibly crafted.
Explore Variation’s 3 carat marquise cut lab grown diamonds today and experience brilliance shaped with precision, fire and modern ethics.
Frequently Asked Questions
Why does a 3 carat marquise cut look especially large on the hand? +
The marquise cut has an elongated outline that maximises face-up length. At 3 carats, this
creates exceptional finger coverage and a slimming effect, making the diamond appear larger
than many other shapes of the same weight.
How noticeable is the bow-tie effect in a 3 carat marquise cut? +
Bow-tie can appear in marquise cuts, but at 3 carats it should be subtle when proportions and
facet alignment are correct. Proper cutting reduces shadowing and maintains even light return
across the centre.
Do the pointed tips of a 3 carat marquise cut need special protection? +
Yes. Marquise cuts have pointed ends that should be protected with V-prongs or a bezel-style
design. With secure settings, a 3 carat marquise is suitable for confident, long-term wear.
What color and clarity are recommended for a 3 carat marquise cut lab grown diamond? +
Elongated shapes can show color toward the tips and inclusions along the centre. Many buyers
prefer D–F or D–G color with VVS–VS clarity to maintain a bright, eye-clean look at 3 carats.
How does Variation select 3 carat marquise cut lab grown diamonds? +
At Variation, 3 carat marquise cut Lab Grown diamonds are selected based on verified IGI or GIA
certification, balanced length-to-width ratios, reduced bow-tie appearance, and secure tip
symmetry to ensure strong visual performance.
Explore Other Shapes
Other 3 Carat Lab Grown Diamond Shapes
If you love 3 Carat Marquise Cut Lab Grown Diamonds but want to explore different outlines, compare these other 3 carat diamond shapes to see how they vary in coverage, brilliance, and overall style.
The most classic and balanced choice, known for maximum brilliance and fire.
An elegant elongated outline offering soft curves and generous finger coverage.
Soft, rounded corners with a romantic pillow-like profile and beautiful fire.
A sleek step-cut shape with long flashes of light and a refined, architectural feel.
A graceful teardrop silhouette that flatters the hand and adds visual length.
Intense sparkle with clipped corners for a bold, structured and modern profile.
A crisp square outline with strong brilliance and a contemporary, graphic look.
A meaningful heart-shaped silhouette that celebrates romance and milestones.
A bold geometric option ideal for distinctive, modern engagement ring designs.