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Princess Cut Lab Grown Diamonds
Renowned for its sharp square outline and modern faceted design, the princess-cut lab grown diamond is a symbol of style and vitality, creating a dazzling effect thanks to its multifaceted structure.

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.

Princess Cut 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

​

  • 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.

  • When can I receive or pick up the jewelry after payment?
    Depending on inventory, some ready-made products can be picked up in the store on the same day or shipped within 3 working days (logistics details) , while products that are not in stock take 3 to 4 weeks to produce. Shipping time in overseas areas (outside of Hong Kong, Macau, Taiwan, and Malaysia) is generally 10 to 56 days (international logistics information click here). If you need to check the stock or expedite production, please click here to contact us.
  • Do I need to pay tax for the product?
    Hong Kong, Macau, and Malaysia are tax-free, while Taiwan incurs a tax of 5% of the total amount. For tax information regarding other countries/regions, the actual amount will be notified by the local courier company upon package arrival at the recipient's country/region, and taxes will be collected directly from you. For enquiries regarding tax amounts, you can refer to the third-party tax estimation calculator SimplyDuty, but please be aware that the actual amount will be based on the calculation at the time of collection in the local area. If you have any questions, please contact our customer service. (Note: International order will be imported from Hong Kong)
  • Is there any maintenance or return service?
    Products purchased from RAGAZZA enjoy a lifetime maintenance (click here for after-sales service details); any product can be replaced unconditionally within 7 days since the date you received the product (except for customized products); if the product does not match the product description, you can return the product and receive a full refund. However, we do not refund in some cases (click here for the return policy).
  • What is the difference between platinum, 18K gold and 925 silver?"
    18K white gold (AU750) 18K white gold is made up of 75% precious metal "gold" plus 25% other white metals, making it a silver-white combination. It is a common material for high-end jewelry. 18K gold is characterized by its strength and durability, and is suitable for long-term wear. We recommend customers to choose 18K gold. Platinum (PT950) PT950 is composed of 95% precious metal "Platinum" plus 5% other hard metals. The natural silver white color is extremely durable and will not oxidize, making it the most ideal high-grade material. Platinum is heavy and hard. It is suitable for long-term wear. If you perfer PT950 for your jewelry, please contact us. Sterling Silver (S925) S925 sterling silver is a more common silver-white precious metal. Because it is not very hard and can oxidize easily, other white metals is plated on the surface of pure silver to make it harder to oxidize. However, frequent cleaning is still needed to maintain its shine.
  • How to know the ring size?
    Please refer to the measurement methods or request a ring size measurer (click here).
  • Can the size be changed?
    We can replace it once for free whenever you have the need.
  • Will lab-grown gems become dim after wearing for a long time?
    Lab grown gems will never become murky, and the inside will never become turbid, so any dirt you see is on the surface and can be removed by cleaning. Click here for cleaning methods.
  • Can lab grown gemstone be distinguished from natural gemstone by eyes?
    Lab grown gemstones have the same appearance, refractive index, hardness and physical composition as natural gemstones. It is almost impossible to distinguish them by naked eyes.
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