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Round Shaped Lab Grown Diamonds
Round diamonds are the most classic and popular lab grown diamond shape, renowned for their timeless elegance and ultimate brilliance. Their 57 or 58 precise facets maximize light reflection, showcasing brilliant fire and perfect balance, making them a top choice for engagement rings and all types of jewelry.

Premium
The highest-grade lab grown diamonds designed for engagement rings and special occasions.
This grade of diamond is the highest quality available, making it a perfect choice for engagements, weddings, or other symbolic commemorative gifts. Certified by the Gemological Institute of America (GIA), it has a D color (completely colorless), a minimum VVS clarity (eye-clean), and a 3EX cut (excellent cut, polish, and symmetry). These grades meet the highest international standards, making it a top choice for those who value quality.

Standard
A cost-oriented choice, suitable for non-critical uses and general daily wear.
This grade of lab grown diamond is primarily valued for its affordability and is suitable for use in situations where quality is less critical, such as everyday jewelry or minor gifts. It carries an IGI certification, with an F color or better, a clarity of at least VS, an average overall appearance, and a good cut. While not pursuing the highest quality standards, it provides a practical and acceptable diamond option.

Images and videos are for reference only; actual diamonds may vary slightly.

If you purchase this diamond individually, we will deliver it with the certificate and packaging. If you would like to create a finished piece of jewelry, please also purchase the diamond setting .

If you require diamond specifications beyond the listed options, please contact us.

Round Shaped Lab Grown Diamonds

PriceFrom HK$1,000.00
Quantity

  • Premium Grade

    • Occasions: Proposal, wedding, anniversary
    • Color: Completely transparent, colorless
    • Clarity: Perfectly eye clean
    • Brilliance: Bright and intense, excellent symmetry and balance
    • Appearance: Suitable for close inspection with high quality and detail demands
    • Selection Priority: Quality as the main requirement

    Standard Grade

    • Occasions: Daily wear, small gifts
    • Color: Near transparent, slight hint of yellow or blue
    • Clarity: Minor inclusions
    • Brilliance: Slightly weaker brilliance and symmetry, still high quality at close range
    • Appearance: Suitable for general viewing distance
    • Selection Priority: Budget as the main consideration
根據 GIA 標準，不同克拉圓形鑽石的尺寸對照圖
Choosing the Right Carat
a Subtle Balance of Style and Proportion

Carat weight influences how a diamond looks and feels when worn.

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  • 0.5 ct (5mm diameter) Light and refined, ideal for daily wear, earrings, or minimalist designs.

  • 1 ct (6.5mm diameter) Classic choice with balanced presence, often used in engagement rings.

  • 1 ct above Bold and eye-catching, perfect for statement pieces and special occasions.

 

Jewelry type matters

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  • Rings - Choose a size that complements your hand and ring profile.

  • Earrings - Opt for smaller stones with strong brilliance for comfort and facial balance.

  • Necklaces - Match carat and chain length to neckline for visual harmony.

 

Selecting the right carat is about style, comfort, and lifestyle. Our experts are here to help you find your perfect fit.

Seal of Authority - Diamond Certification and Grading Explained

cert giaiai.jpg

GIA (Gemological Institute of America) stands at the pinnacle of credibility in diamond certification. Renowned for its uncompromising standards and precise grading, GIA ensures each diamond meets the highest level of quality. A GIA certificate is more than a report - it’s a mark of trust, excellence, and lasting value.

​IGI (International Gemological Institute) is a globally recognized diamond grading authority known for its efficient and flexible evaluation standards. It uniquely includes the 'Hearts and Arrows' cut in its reports, offering a more detailed view of craftsmanship. Widely accepted in the global market, IGI certificates provide both reliability and diverse options for consumers.

Diamond color grading ranges from D to Z, with D-F being colorless, and D being the most rare and pure. G-J are near-colorless, with faint undertones that still maintain brilliance in specific lighting. As the grade decreases, the color deepens, transitioning from light yellow to the noticeable yellow of Z. RAGAZZA exclusively selects the highest-grade D color diamonds, renowned for their flawless whiteness, which sparkle with exceptional brilliance in any light, perfectly embodying their rare and incomparable value.

cert clarity.jpg

Diamond clarity ranges from IF+ (internally flawless) to I (included), reflecting the presence of internal and surface imperfections. RAGAZZA’s IF+ diamonds are exceptionally rare, offering flawless brilliance. VVS and VS grades feature only minute inclusions, barely visible even under magnification. While SI and I grades may show visible inclusions, a well-balanced choice across the 4Cs ensures optimal beauty and value.

cert cut.jpg

Cut is the key to a diamond’s brilliance - precise angles allow light to reflect and refract perfectly, creating exceptional sparkle. Graded from Excellent to Poor, only Excellent cuts fully maximize brightness. In contrast, deep or shallow cuts cause light leakage, diminishing radiance. RAGAZZA selects diamonds with Good to Excellent+ cuts, ensuring optimal light performance and unmatched brilliance.

Natural Diamond VS Lab Grown
Natural diamonds showcase natural beauty and rarity, while lab grown diamonds offer affordability and functionality.

FAQs

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