Round Diamond Mangalsutra

Diamonds are graded for color on a scale from D (colorless) to Z (light yellow/brown). The less color a diamond has, the more valuable it is.
D, E, F: Colorless. These diamonds have no detectable color and are the most rare and valuable.
G, H, I, J: Near-colorless. These diamonds may have a hint of color, but it is not usually visible to the naked eye. They are a popular choice for engagement rings because they offer a balance between quality and value.
K, L, M: Faint yellow. These diamonds have a noticeable yellow tint, especially when viewed from the side. They are generally less expensive than higher color grades.

Flawless (FL) and Internally Flawless (IF): Diamonds with no visible inclusions or blemishes under 10x magnification, making them very rare and valuable.
Very, Very Slightly Included (VVS1 and VVS2): Diamonds with tiny inclusions that are difficult to see under 10x magnification, making them very high quality and valuable.
Very Slightly Included (VS1 and VS2): Diamonds with small inclusions that are visible under 10x magnification, but are not usually visible to the naked eye. These diamonds offer a good balance of quality and value.
Slightly Included (SI1 and SI2): Diamonds with noticeable inclusions that are easily visible under 10x magnification, and may be visible to the naked eye. These diamonds can be a good value for those who want a larger diamond at a lower cost.
Included (I1, I2, and I3): Diamonds with obvious inclusions that are visible to the naked eye and can affect the diamond's beauty and durability. These diamonds are generally less expensive