How Much Does a 4.8 mm Diamond Cost?

A 4.8 ly diamond (0.4 ct) is truly the "golden spot" favored by jewelry connoisseurs. This size is prominent enough on the finger while being far more affordable than half-carat or 1-carat diamonds. However, even within the same 4.8 mm size, the value can differ by more than double, from 20,600,000 VND to over 45,000,000 VND.

This article will provide a detailed analysis of pricing factors, feng shui meanings, and the best way to choose a standard 4.8 ly diamond.

How Much Does a 4.8 Ly Diamond Cost?

Diamond prices in the market fluctuate greatly; even within the same size (ly), there can be significant differences. A 4.8 ly diamond ranges from 20,600,000 VND to 45,000,000 VND depending on the quality of each stone.

Differences in the 4Cs standards cause the value of a diamond to vary significantly:

• Difference in clarity and color grade: A Color D, Clarity VVS1 diamond will cost about 25% more than a VVS2 diamond. A Color D diamond is 15% more expensive than a Color E diamond. This price premium is not uniform and varies for each individual diamond.
• Overall range: A Color D, Clarity IF diamond (the most perfect) may cost more than 3 times as much as a Color F, Clarity VVS2 diamond (the lowest-priced option in 4.8 mm) .
• Cut: A perfect cut (Excellent) not only creates a unique personality for each gemstone but also makes a major difference in price, because it maximizes brilliance and requires high precision in crafting.

Note: Diamond prices in this article are updated for December 2025; in the event of limited supply, diamond prices may rise sharply in the future.

See now: The latest updated diamond price list or Contact Jemmia now: 0838 353 333

Latest updated 4.8 ly diamond price

How Many Carats Is a 4.8 Ly Diamond?

A 4.8 ly diamond is equivalent to approximately 0.4 carat (Ct). In this, carat is the unit for measuring a diamond's weight (1 carat = 200 mg), while ly is the unit for measuring size, equivalent to millimeters (1 ly = 1 mm).

For a standard round diamond (Round Brilliant Cut), a 4.8 ly stone has a diameter of about 4.8 mm, considered a moderate size and very suitable for everyday jewelry designs.

It can be said that a 4.8 ly diamond is the perfect balanced choice: it is noticeably larger than a 4.5 ly diamond (~0.32 ct) yet significantly more cost-effective than a 5 ly diamond (~0.5 ct), which has already reached the half-carat threshold and comes with a sharp price increase.

A 4.8 ly diamond is about 0.4 ct

Meaning of a 4.8 Ly Diamond

A 4.8 ly diamond carries many profound meanings in feng shui, love, and aesthetic value:

• Prosperity and durability: The number "4.8" is understood as "Tứ Phát" (steady prosperity) in Eastern beliefs, symbolizing stability, luck, and long-term thriving growth.
• Eternal love: It is a symbol of faithful attachment, expressing a lifelong promise and steadfastness in love and marriage.
• Aesthetic value: Its refined, moderate size reflects the giver’s thoughtfulness and sophistication, while also creating an optimal sparkling effect (brilliance) when cut Excellent.

What Type of Jewelry Is a 4.8 Ly Diamond Suitable For?

With a size of about 4.8 mm (equivalent to ~0.38–0.40 carat), a 4.8 ly diamond is considered a “versatile” size, suitable for many different types of jewelry. Below are the most popular options:

Rings: The 4.8 ly size is ideal for engagement/wedding rings thanks to its refined beauty and optimal cost. When used for fashion rings or solitaire rings, the stone fits comfortably without causing inconvenience; with a halo design, a 4.8 ly diamond can create a visual effect similar to about 6 ly.

Small and elegant 4.8 ly diamond ring

Earrings: 4.8 ly stud earrings are the most popular choice. A pair of studs with a total weight of about 0.8 ct offers an elegant look, brightens the face, and matches every style easily.

Jemmia 4.8 ly diamond earrings

Necklaces: A 4.8 ly diamond is suitable for solitaire or halo pendant designs, creating a moderate focal point, sparkling enough for daily wear while still standing out at parties.

Jemmia diamond jewelry collection

The flexibility in design is also a strong advantage of the compact 4.8 ly diamond. It can easily be combined with many different metals and styles, from white gold to platinum, from traditional to modern. This makes the 4.8 ly diamond suitable for many occasions, including luxurious events or pairing with everyday work outfits, always bringing just the right amount of beauty to attract attention without losing sophistication.

>> Beautiful diamond earrings currently available at Jemmia Diamond

Where to Buy a Reputable and Quality 4.8 Ly Diamond?

Owning a 4.8 ly GIA diamond requires choosing a highly trustworthy provider that ensures both quality and legal authenticity. Jemmia Diamond, an authorized partner of the Gemological Institute of America (GIA) in distributing genuine GIA-certified diamonds, is the leading place for you to invest with confidence.

At Jemmia, customer peace of mind is the top priority through distinct commitments:

• Absolute legal transparency: Every diamond is imported through official customs procedures, accompanied by full GIA documentation and sales invoices. This confirms that your asset is legal and has lasting value.
• Commitment to top-tier quality: Jemmia applies strict selection standards, choosing only the top 2% of highest-quality diamonds worldwide, based on GIA’s standard 4C evaluation.
• Certification with advanced GIA technology: To verify origin and quality, Jemmia is equipped with the most advanced certification machinery from GIA USA (such as GIA iD100, GIA Diamond Dock). This removes all doubt about the authenticity of the diamond.
• Ethical trading: Diamonds at Jemmia are imported under the Kimberley Process rules, ensuring clear, conflict-free origins and protecting business ethics and the environment.
• Outstanding after-sales policy: With buyback and trade-in policies considered the best in the market, customers always have assurance of investment value, making it easy to upgrade or exchange products in the future.