About Round Cut Lab Grown Diamonds
Round Cut Lab Grown Diamonds – Classic Brilliance, Perfect Symmetry
Round cut lab grown diamonds are the most iconic and sought-after diamond shape in the world. Renowned for their unmatched brilliance, fire, and symmetry, round diamonds are precision-engineered to maximise light reflection and sparkle. Created using advanced CVD and HPHT technology, these diamonds offer identical beauty and durability to mined diamonds — with the added advantage of ethical and sustainable craftsmanship.
At Variation Australia, every round lab grown diamond is IGI-certified, masterfully cut, and crafted to deliver exceptional brilliance for engagement rings, earrings, pendants, tennis bracelets, and more.
Why Choose a Round Cut Lab Grown Diamond?
The round brilliant cut is the gold standard of diamond design, reflecting centuries of innovation and craftsmanship.
Key Benefits
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Superior brilliance and fire
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58 precisely angled facets for maximum sparkle
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Most versatile and timeless diamond shape
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Performs best in all lighting conditions
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Ideal for all jewellery styles
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Ethical, eco-conscious, and conflict-free
Round cut diamonds are universally flattering and perfect for those who want classic elegance with modern values.
IGI-Certified Quality and Transparency
Each round lab grown diamond at Variation Australia is graded by the prestigious International Gemological Institute (IGI).
Your IGI Certificate Includes
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Cut Grade: Ideal or Excellent
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Color Grade: D–F (highest colorless grades)
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Clarity Grade: VVS1–VS2 (near-flawless clarity)
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Carat Weight: From 0.30 ct to 10+ ct
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Proportions: Depth, table, polish, symmetry
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Laser Inscription: Unique IGI number
This independent grading ensures accuracy, transparency, and trust with every purchase.
Round Diamond Shapes, Sizes & Proportions
Round diamonds are crafted with mathematical precision to maximise sparkle and reduce light leakage.
Popular Carat Sizes
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1.00 ct Round Diamond – Perfect everyday brilliance
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1.50 ct Round Diamond – Larger presence with timeless elegance
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2.00 ct Round Diamond – Luxury with striking performance
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3.00+ ct Round Diamond – Exceptional brilliance and statement appeal
Each diamond is calibrated for perfect symmetry and extraordinary light return.
Perfect for All Jewellery Types
Round cut lab grown diamonds are the most versatile of all diamond shapes and look exceptional in every setting.
Ideal For:
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Engagement Rings
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Solitaire Stud Earrings
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Halo Earrings
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Tennis Bracelets
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Solitaire Pendants
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Station Necklaces
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Eternity Rings
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Cocktail Rings
Their timeless beauty ensures they remain cherished for generations.
Ethical, Sustainable & Beautifully Crafted
Lab grown round diamonds offer a responsible alternative to mined diamonds while maintaining identical beauty and value.
Sustainability Highlights
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No destructive mining
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Lower environmental impact
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Fully traceable and ethical
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Conscious craftsmanship
Variation Australia further enhances sustainability through a made-to-order jewellery model, reducing waste and ensuring mindful production.
Australia-Wide & Worldwide Delivery
We ship round cut lab grown diamonds across Australia and to more than 50 countries worldwide.
Every Order Includes
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Insured and trackable shipping
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Secure, tamper-proof packaging
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Luxury diamond box
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IGI certificate
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Factory-direct pricing
Whether for a proposal, gifting, or a custom jewellery creation, every diamond is delivered with exceptional care.
Experience the World’s Most Loved Diamond Cut
A round cut lab grown diamond from Variation Australia offers unmatched brilliance, timeless design, and ethical elegance. Whether you are choosing a centerpiece for a ring or selecting a diamond for a custom piece, the round brilliant stands as the ultimate symbol of beauty and perfection.
Discover the brilliance of Round Cut Lab Grown Diamonds at Variation — where craftsmanship meets conscious luxury.
Frequently Asked Questions
Why is the round cut the most popular diamond shape? +
The round brilliant cut is the most popular because it offers maximum brilliance, fire,
and light performance. Its 57/58 precision-cut facets are engineered to reflect the highest
amount of light, making it the sparkliest of all diamond shapes.
Do round cut lab grown diamonds sparkle more than other shapes? +
Yes. Round brilliants are specifically designed to maximize light return, giving them
superior sparkle compared to most fancy shapes. Their symmetrical design enhances brilliance,
fire, and scintillation from every angle.
Are round cut lab grown diamonds more expensive than other shapes? +
Round cut diamonds typically cost slightly more because they require more rough diamond
material to achieve perfect proportions. However, lab grown diamonds allow buyers to get
larger, higher-quality round stones at far more accessible prices than mined diamonds.
What makes a round cut diamond “ideal” or “excellent” cut? +
An ideal or excellent cut round diamond has perfect symmetry, balanced proportions,
and optimal facet alignment. These factors maximize brilliance and ensure that the
diamond reflects light with extraordinary intensity.
What settings look best with round cut lab grown diamonds? +
Round diamonds are the most versatile and work beautifully in solitaire, halo, pavé,
3-stone, and vintage settings. They also pair perfectly with plain, diamond, or hidden-halo
bands, making them a timeless choice for engagement rings.
Are round cut lab grown diamonds good for everyday wear? +
Absolutely. Their symmetrical round shape and lack of sharp corners make them durable,
secure, and ideal for rings worn daily. They resist chipping better than fancy shapes
like pear, marquise, or princess.
Do round cut diamonds look larger than other shapes of the same carat? +
Round diamonds may appear slightly smaller compared to elongated shapes like oval or emerald,
but they offer unmatched brilliance and light return, which makes them visually stand out
even at smaller sizes.
Are round cut lab grown diamonds certified by IGI or GIA? +
Yes. Round cut lab grown diamonds are graded by the same reputable laboratories—IGI, GIA,
and others. Each certificate includes details on cut grade, symmetry, polish, color,
clarity, and carat weight.
What colors and clarities are recommended for round diamonds? +
Round diamonds are excellent at masking inclusions and color because of their intense sparkle.
Most buyers choose D–I color and VVS–VS clarity for the best balance of beauty and value,
especially in lab grown diamonds.
Do round cut lab grown diamonds come in different sizes? +
Yes. They are available from under 0.50 carat all the way to 10+ carats, with a wide range
of cut grades, colors, and clarities. Their consistent proportions make them the most
universally loved diamond shape.
Carat guide
Round Cut Lab Grown Diamonds by Carat Weight
Browse Round Cut Lab Grown Diamonds across the most requested carat weights. Compare look, presence, and budget as you move from classic 1 carat stones to bold 5 carat centre diamonds.
A balanced and timeless size offering strong brilliance and everyday wearability.
A luxurious upgrade in presence and sparkle, ideal for standout rings.
A strong statement size with eye-catching brilliance and bold visual impact.
Exceptional size with commanding sparkle — designed for those who prefer impactful luxury.
An ultra-luxury size with dramatic brilliance, ideal for showpiece jewellery and collectors.
Shape Guide
Explore Other Lab Grown Diamond Shapes
Already considering a round cut? Compare it with other lab grown diamond shapes to find the outline that best matches your style, finger coverage, and face-up presence.
An elongated outline that enhances finger length and face-up size.
A soft, romantic outline with rounded corners and beautiful fire.
Step-cut facets offering clarity, elegance, and a hall-of-mirrors effect.
Strong finger coverage with pointed ends for a dramatic look.
Modern brilliance with clipped corners and vibrant sparkle.
A geometric square shape known for exceptional brilliance.
A distinctive and meaningful symbol with balanced lobes.
A bold triangular outline with sharp edges offering modern appeal.
A curated collection of distinctive and uncommon diamond cuts.