2026 Updated 3.6mm Diamond Prices According to 4Cs Standards

3.6mm diamonds are a popular choice thanks to their moderate size, suitable for many delicate jewelry designs such as rings, earrings, or pendants. However, the price of a 3.6mm diamond also depends on the 4Cs standards (Carat, Cut, Color, Clarity) and the accompanying certification. In this article, Jemmia updates the latest 3.6mm diamond price list on the market today. At the same time, it helps you understand how to convert ly to carat and provides experience in choosing a beautiful 3.6mm diamond at the right value. 

How much does a 3.6mm diamond cost?

3.6mm diamonds have a fairly wide price range, depending on factors such as: weight (carat), cut, color, clarity, certification (GIA/IGI), and origin. Diamonds with high quality (typically D color diamonds, VVS clarity) are often many times more expensive than those with lower specifications. 

The current market price of a 3.6mm diamond in Vietnam ranges from 6.3 million to 12.7 million depending on the diamond 4C standards and origin. Below is the 3.6mm diamond price table according to the 4Cs standards of the Gemological Institute of America: 

3.6mm diamonds are priced from 6.3 million to 12.7 million depending on quality

How many carats is a 3.6mm diamond?

In the jewelry industry, “ly” is used to measure size (mm), while carat (ct) is the unit of weight (1 carat = 0.2g). With a size of 3.6mm (3ly6), a diamond usually weighs about 0.17 carats, ranging from 0.165 - 0.175ct depending on cut proportions and depth.

At this weight, a 3.6mm diamond offers a refined and elegant beauty, suitable for engagement rings, wedding rings, earrings, or pendants. However, because the size is not large, its liquidity and investment value are not as high as diamonds from 0.20ct and above. Therefore, this type of diamond is often chosen for jewelry rather than long-term investment.

A 3.6mm diamond equals 0.168 - 0.173 carats depending on cut proportions and depth

What jewelry is a 3.6mm diamond suitable for?

3.6mm diamonds carry an elegant beauty, perfectly sized to create a subtle highlight without being overly flashy. Therefore, this type of diamond is often widely used in compact jewelry designs, enhancing sophistication and elegance for the wearer.

• Diamond rings: A 3.6mm diamond is a popular choice for rings with special meaning. The stone is compact yet sparkling, symbolizing pure love, suitable for those who love gentleness and sophistication.
• Diamond earrings: A pair of earrings set with 3.6mm diamonds brings a luxurious yet graceful look, easy to match with many everyday and event outfits.
• Diamond pendants: A 3.6mm diamond crafted into a pendant creates a gentle highlight at the neck, suitable for women who love elegance and refinement.

Should you buy a 3.6mm diamond?

A 3.6mm diamond is a popular choice thanks to its petite, elegant beauty and accessible price. However, whether you should buy one depends on your intended use.

Advantages:

• Compact size, bringing a refined touch when crafted into rings, earrings, or pendants.
• More affordable than larger sizes, suitable for personal jewelry needs.
• Easy to incorporate into many simple engagement ring or wedding ring designs.

Limitations:

• Its weight is only 0.17ct, so liquidity is low and it is less favored for investment.
• Its appreciation over time is not as high as diamonds from 0.20ct and above.
• When crafted, the small diamond is often less prominent if not paired with an intricate design.

Therefore, a 3.6mm diamond is very suitable for those looking for a refined, affordable stone for commemorative jewelry or gifts. However, if you aim to preserve value long-term and want easier liquidity, you should consider choosing a larger diamond to ensure investment potential and lasting value.

3.6mm diamonds are suitable for buying as jewelry with small accent stones, not suitable for long-term investment

Tips for choosing a beautiful 3.6mm diamond at the right value 

To choose a 3.6mm diamond that is both beautiful and has aesthetic as well as investment value, you should keep the following important points in mind:

1. Check the certificate:
Prioritize choosing diamonds with GIA certification or other reputable international certificates to ensure clear origin and transparently verified quality.

2. Pay attention to the 4Cs standards:

• Cut: You should choose Excellent cut so the diamond achieves the best brilliance and light reflection.
• Color: The color range from D to F is considered ideal, bringing transparency and luxury.
• Clarity: You should choose from VVS to VS, helping the stone minimize inclusions and maintain perfect brightness to the naked eye.
• Carat (Weight): A 3.6mm diamond is equivalent to about 0.175 carats, a suitable size for crafting many delicate types of jewelry.

3. Choose a reputable place to buy:
Buy from major brands such as Jemmia Diamond to ensure genuine products, clear warranty and exchange policies, and a transparent appraisal process.

4. Compare market prices:
The price of a 3.6mm diamond depends on the 4Cs standards, so you should refer to prices from multiple reputable sources before deciding to ensure the price matches the actual quality.

Where to buy a reputable 3.6mm diamond?

So Jemmia has updated the 3.6mm diamond price list according to 4Cs standards. If you want to own a 4Cs-standard diamond with sustainable value and exquisite craftsmanship, you can refer to the Jemmia Diamond website.