About Natural Diamond

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C.H. adopts the globally recognized 4C standard, insisting on using natural diamonds of F/VS grade or higher. For diamonds over 0.3 carats, a GIA certificate is provided.

🔹 The Charm of Natural Diamonds

Natural diamonds are rare resources formed over billions of years, making them irreplaceable treasures of the Earth. Their exceptional hardness, brilliance, and fire (rainbow-colored light) make them highly valued in jewelry.

🔹 Unique Value

• Every natural diamond is unique, with no two being exactly the same.

• Through advanced cutting and polishing, their beauty and brilliance are maximized.

• They have high collection and asset value, making them a popular choice for long-term investment.

C.H. is committed to providing our customers with the highest quality natural diamonds, delivering carefully selected brilliance ✨

GIA Certification

A certificate issued by the GIA laboratory evaluates and analyzes diamonds based on the 4Cs: Carat, Color, Clarity, and Cut.

🔹 C.H. Diamond Standards

Our diamonds meet the following carefully selected 4C standards:

• Carat: 0.10ct and above

• Color: D–F (Colorless grade)

• Clarity: VS1 and above (only minor inclusions)

• Cut: Very Good and above (excellent brilliance)

If you are interested in other diamond grades, feel free to contact us

CARAT

【C.H. offers a variety of carat size options】

Carat (ct) is the unit of weight used to measure diamonds and gemstones.

🔹 Popular Carat

The most popular diamond are:

✨ 0.30ct / 0.50ct / 1.00ct ✨

At C.H. Jewelry, we offer a variety of carat sizes of diamonds to meet our customers' needs. 💎

COLOR

【C.H. uses diamonds graded F (Colorless) or higher】

The diamond color is categorized into five grades from D to Z.

🔹 Diamond Color Grades

1️⃣ Colorless: D・E・F
2️⃣ Near Colorless: G・H・I・J
3️⃣ Faint Yellow: K・L・M
4️⃣ Light Yellow: N～R
5️⃣ Yellow: S～Z

🔹 Why Color Matters

Color is one of the important factors in the 4C grading system, and the differences in grades can be identified by the naked eye, directly affecting the beauty of the diamond.

✨ At C.H. we carefully select only diamonds of F grade (colorless) or above to deliver the highest quality brilliance. ✨

CLARITY

【C.H. uses diamonds graded VS (Very Slightly Included) or higher】

🔹 What is Clarity?

Clarity is an indicator of the presence of internal inclusions or surface features in a diamond.

The higher the clarity, the better the transparency, and the diamond is considered to have higher rarity and value.

🔹 C.H. Clarity Standards

At C.H., we only use carefully selected diamonds of VS grade or above.

Diamonds with a VS (Very Slightly Included) grade or higher have minimal inclusions visible to the naked eye, offering high transparency and beautiful brilliance.

✨ C.H. carefully select diamonds with high-quality clarity to deliver a special brilliance. ✨

CUT

【C.H. Uses VG or Higher Grade】

🔹 What is Cut?

Cut is the most important factor in determining the brilliance and beauty of a diamond.

It directly affects the diamond’s brightness, reflection, and fire (rainbow-colored brilliance), and is considered the most technically demanding of the 4C grading criteria.

🔹 C.H. Cut Standards

At C.H., we carefully select diamonds with a cut grade of VG (Very Good) or above.

With excellent cutting techniques, the diamond shines more beautifully and creates maximum light reflection.

✨ C.H. deliver diamonds that radiate the highest brilliance. ✨