Meaning of Diamond Cut Numbers
Key Takeaways
- The meaning of diamond 'ly' sizes is the feng shui value determined by the diameter (in millimeters) of the stone, based on its Sino-Vietnamese pronunciation. In East Asian culture, choosing a suitable...
The meaning of diamond 'ly' sizes is the feng shui value determined by the diameter (in millimeters) of the stone, based on its Sino-Vietnamese pronunciation. In East Asian culture, choosing a suitable 'ly' size (such as 5 ly, 6 ly 8, 8 ly 1) is considered a factor that helps balance and activate fortune, symbolizing wishes for fertility, prosperity, success, and eternity for the owner. Read the article below to choose the right diamond.
What is a diamond 'ly' size?
'Ly kim cương' is a folk term in Vietnam used to refer to the unit of measurement for the surface diameter of a diamond, where 1 ly = 1 millimeter (mm). This dimension is measured using specialized calipers by measuring the symmetrical width across the center of the stone.
In the jewelry industry, the 'ly' size and weight (carat) go hand in hand but are not entirely proportional due to dependence on the cut proportions (Cut). Vietnamese consumers often prefer to refer to diamonds by 'ly' size due to its intuitiveness and ease of visualizing the actual size when looking at or trying on the stone.
Reference Conversion Table between 'Ly' Size and Carat Weight
| Size (Ly/mm) | Approximate Weight (Carat) | On-hand Appearance Ratio |
| 5.4 ly | ~0.50 carat | Compact, elegant for women |
| 6.3 ly | ~0.90 carat | Well-proportioned, strikingly brilliant |
| 6.5 ly | ~1.00 carat | International standard size |
| 6.8 ly | ~1.20 carat | Popular feng shui size |
| 8.1 ly | ~2.00 carat | Luxurious, high investment value |
What feng shui meaning do diamonds carry?
Diamonds symbolize purification, attracting prosperous energy, and empowering the owner due to their formation over millions of years under extreme pressure and temperature.
According to the Gemological Institute of America (GIA), diamond is the only natural mineral to achieve absolute hardness of 10/10 on the Mohs scale. This physical property makes them a symbol of steadfast spirit, eternal love, and timeless endurance.
Accumulating fortune: The strong crystalline carbon structure helps retain and amplify positive energy (strong positive energy) around the owner.
Promoting career advancement: The brilliant light refraction represents clarity, enhancing concentration and decisiveness for leaders.
Averting misfortune: Diamonds are believed to be a feng shui shield, transforming negative energies into peace and life balance.
Diamonds symbolize purification, attracting prosperous energy, and empowering the owner
The Meaning of Diamond 'Ly' Sizes
In East Asian culture, numbers not only have quantitative value but also hold deep feng shui meanings. For diamonds, the 'ly' size of the stone is considered a factor that helps activate fortune. "Auspicious" numbers are often chosen in craftsmanship and purchasing to bring good luck, wealth, and peace.
| Number (Ly Size) | Feng Shui Meaning & Symbol of Prosperity |
| Number 3 (Tài - Wealth) | Symbolizes stability and steadfastness like a "three-legged stool" and the ability to generate wealth. Sizes containing the number 3 (such as 3.6 ly, 6.3 ly) are often chosen to attract luck in terms of money and career advancement. |
| Number 5 (Sinh - Birth/Life) | Represents new beginnings, fertility, and vitality in all things. This number symbolizes fresh energy, helping careers and relationships to develop smoothly. |
| Number 6 (Lộc - Prosperity) | Its Sino-Vietnamese pronunciation is close to "Lộc" (Prosperity), representing wealth, fortune, and affluent family life. Diamonds with 'ly' sizes related to the number 6 (such as 6.3 ly, 6.8 ly) are particularly sought after because they bring great financial luck. |
| Number 8 (Phát - Development) | This is the most favored number in business and investment, symbolizing prosperity, flourishing, rapid advancement, and maximizing business opportunities. |
| Number 9 (Cửu - Eternity) | Symbolizes eternity, perpetuity, peak power, and complete happiness. Number 9 is often the top priority in wedding jewelry or engagement ring designs to wish for lasting love. |
| Number 10 (Viên mãn - Perfection) | Represents absolute perfection, completeness, and flawlessness. Owning a stone with the message of number 10 symbolizes a peaceful, prosperous life and the achievement of the most complete accomplishments. |
Diamonds are the pinnacle of energy, not only facilitating smooth love lives but also bringing success and prosperity to careers. Whether it's an elegant women's diamond ring or a luxurious men's diamond ring, each design carries its own message, enhancing the wearer's class and personality. Therefore, be very careful when choosing to buy diamonds.
The 'ly' size of the stone is considered a factor that helps activate fortune.
Why is the 6.8 ly diamond size the most sought after?
The 6.8 ly diamond size is the most sought after because it is a perfect combination of the meaning of "Lộc Phát" (Prosperity and Development) and optimal balance in high-end jewelry design.
Feng Shui: The combination of number 6 (Lộc - Prosperity) and number 8 (Phát - Development) creates the message "wealth multiplies, prosperity is continuous," which is highly favored by business people.
Aesthetics: A diameter of 6.8mm has an ideal visual presence on all hand shapes, not too small to be overlooked, and not too large to be cumbersome.
Versatility: Perfectly suitable for engagement rings, wedding rings, and men's protective rings.
6.8 ly has the meaning of "Lộc Phát" (Prosperity and Development)
Summary of the Most Searched Feng Shui Diamond Sizes
Below is a list of "golden" diamond sizes chosen based on the sum of digits or special paired meanings:
- 5.4 ly: Carries the meaning "Sinh Cửu" (Birth and Eternity), wishing for sustainable and everlasting development over time.
- 6.3 ly: A combination that brings complete luck and long-lasting wealth, often used for engagement rings.
- 7.2 ly: Symbolizes comprehensive good fortune and great luck for the wearer.
- 8.1 ly (Phát Sinh - Development and Birth): Represents continuous advancement and the reception of many new business opportunities.
FAQ — Frequently Asked Questions
How many carats is a 6.5 ly diamond equivalent to?
Typically, a standard round brilliant diamond cut with a size of 6.5 ly weighs approximately 1.00 carat.
Which diamond 'ly' size is chosen most often for engagement rings?
The sizes 6.3 ly and 6.8 ly are the two most frequently chosen sizes for engagement rings due to their auspicious feng shui meanings (Lộc Phát, Vĩnh Cửu - Prosperity and Development, Eternity) and their well-proportioned size for women's hands.
Are larger sized diamonds always more expensive?
Generally yes, as larger natural stones are very rare. However, a large-sized diamond with a poor color grade (cloudy, yellowish) or many inclusions can still be cheaper than a smaller sized diamond that achieves a D color and Flawless clarity.
Buy Diamonds with Confidence at Jemmia
When investing in diamonds, customers not only seek brilliant beauty but also require transparency, trustworthiness, and lasting value. Jemmia Diamond proudly stands as one of the leading reputable diamond brands in Vietnam, meeting all stringent international standards for quality, legality, and business ethics.
- 100% Officially Imported Diamonds: Guaranteed with full sales invoices and GIA certificates. Each diamond is a legal asset, giving customers peace of mind for ownership and long-term investment.
- Only Selects the Top 2% of the World's Most Beautiful Diamonds: Undergoes rigorous inspection according to GIA's 4Cs standards for color, clarity, and cut. Committed to not using diamonds with defects affecting durability and structure.
- Pioneering the Most Modern Machinery from the USA: Jemmia uses 100% imported technology equipment from GIA USA, including GIA iD100, GIA Diamond Dock, GIA Match iD… to verify the quality and origin of each diamond.
- Ethical Diamonds: Only imports from countries that comply with the "Kimberley Process," ensuring they are not mined from conflict zones and do not harm people or the environment.
In addition to diamond rings, Jemmia offers many other high-end jewelry options such as diamond earrings, diamond pendants, or diamond bracelets – all exquisitely crafted, luxurious, and carrying good feng shui meanings.
Furthermore, diamond prices at Jemmia are always updated, helping customers easily choose the stone or piece of jewelry that fits their budget and needs.
Buy Diamonds with Confidence at Jemmia Diamond
The meaning of diamond 'ly' sizes is a subtle interplay between technical measurement science and the beautiful feng shui beliefs of East Asians. Choosing a diamond with a lucky 'ly' size like 6.3 ly, 6.8 ly, or 8.1 ly not only enhances elegance and class but also brings peace of mind and attracts wealth for the owner.
