Diamond or Heera
4C are important: Carat , Cut , Colour , Clarity
Diamond is for planet Venus.
Original Diamond is available on Demand.
As a substitute American Diamonds also known as Zircon are available.
Zircon is not an artifically made gems. Zircon is found in earth crust. It comes in variety of colours including yellow, green red, purple, orange, white etc.
All gems are provided with the certificate - Sample certificate copy:
[caption id="attachment_271" align="alignleft" width="150"]
Sample-certificate Copy of Gems[/caption]
[caption id="attachment_211" align="alignleft" width="608"]
Zircon - American Diamond. 5.90 carat[/caption][caption id="attachment_209" align="alignleft" width="640"]
Zircon -American Diamond.6.75 carat[/caption]
A diamond or gemstone's "Carat"
One "Carat" is a unit of mass that is equal to 0.2 grams (200 milligrams or 3.086 grains) or 0.007 ounce.
Bigger the diamond, more is its weight, which is measured in carats.
The price of diamond per carat increases with the increase in the size of diamond.
Example: Smaller diamond less than 0.2 carat can be obtained from market at Rs 50,000 /carat But bigger diamond (Ex: 2 carat diamond) will cost 4-9 lakhs/carat depending on its characteristics.
There are various scales to define clarity.
Diamonds with higher Nitrogen are classified as type 1. If nitrogens are clustered at a single place then it is known as type 1A and if they are uniformly spread then it is known as Type 1B. 1B causes more damage to the color of the diamond
Type II diamonds have very less or no nitrogen and they are colourless. Id it contains Boron as the impurities it is known as type IIB, otherwise type IIA
Thus type IIA are the costliest and very rare.
Diamonds can occur in a wide variety of colors: colorless, white, blue, pink, orange, red etc. Diamond has the refractive index of 2.417
In determining the color rating of a diamond, the Gemological Institute of America uses a scale of "D" to "Z" in which "D" is totally colorless and "Z" is yellow.
There are various types of cuts
4C are important: Carat , Cut , Colour , Clarity
Diamond is for planet Venus.
Original Diamond is available on Demand.
As a substitute American Diamonds also known as Zircon are available.
Zircon is not an artifically made gems. Zircon is found in earth crust. It comes in variety of colours including yellow, green red, purple, orange, white etc.
All gems are provided with the certificate - Sample certificate copy:
[caption id="attachment_271" align="alignleft" width="150"]
Sample-certificate Copy of Gems[/caption][caption id="attachment_211" align="alignleft" width="608"]
Zircon - American Diamond. 5.90 carat[/caption][caption id="attachment_209" align="alignleft" width="640"]
Zircon -American Diamond.6.75 carat[/caption]A diamond or gemstone's "Carat"
One "Carat" is a unit of mass that is equal to 0.2 grams (200 milligrams or 3.086 grains) or 0.007 ounce.
Bigger the diamond, more is its weight, which is measured in carats.
The price of diamond per carat increases with the increase in the size of diamond.
Example: Smaller diamond less than 0.2 carat can be obtained from market at Rs 50,000 /carat But bigger diamond (Ex: 2 carat diamond) will cost 4-9 lakhs/carat depending on its characteristics.
CLARITY
It reflect the appearance of inclusions (impurities) within the gem when viewed from above at 10x magnification Higher magnifications and viewing from other angles are also used during the grading process.There are various scales to define clarity.
Diamond Clarity Designations - Scale given by GIA
- FL - "Flawless" no inclusions at 10 x magnification - Most costly
- IF - "Internally Flawless" no inclusions at 10 x mag. - small blemishes
- VVS-1 - "Very Very Small" inclusions hard to see at 10 x magnification
- VVS-2 - "Very Very Small" inclusions. VVS1 better than VVS2
- VS-1 - "Very Small" inclusions visible at 10 x mag. - not naked eye
- VS-2 - "Very Small" inclusions VS1 is better grade than VS2
- SI-1 - "Small" or "Slight" Inclusions or "Imperfections" may be "eye clean"
- SI-2 - "Small" or "Slight" Inclusions or "Imperfections" visible to naked eye
- SI-3 - Inclusions large and obvious, little or no brilliance
- I1 to I3 - Imperfect, with large Inclusions, fractures, and flaws - Least costly
COLOR
Most all natural diamonds contain some impurities (small quantities of nitrogen atoms) These nitrogen impurities absorbs some of the blue spectrum of visible light, thereby making the diamond appear yellow. The higher the amount of nitrogen atoms, the yellower the stone will appear.Diamonds with higher Nitrogen are classified as type 1. If nitrogens are clustered at a single place then it is known as type 1A and if they are uniformly spread then it is known as Type 1B. 1B causes more damage to the color of the diamond
Type II diamonds have very less or no nitrogen and they are colourless. Id it contains Boron as the impurities it is known as type IIB, otherwise type IIA
Thus type IIA are the costliest and very rare.
Diamonds can occur in a wide variety of colors: colorless, white, blue, pink, orange, red etc. Diamond has the refractive index of 2.417
In determining the color rating of a diamond, the Gemological Institute of America uses a scale of "D" to "Z" in which "D" is totally colorless and "Z" is yellow.
Diamond Color Designations
- D, E, F - colorless (white) - Most costly
- G, H, I, J - near colorless
- K, L, M - faint yellow or brown
- N, O, P, Q, R - very light yellow or brown
- S, T, U, V, W, X, Y, Z - light yellow or brown - Least costly
There are various types of cuts
- Ideal Cut
- Premium Cut
- Very Good / Fine Cut
- Good Cut
- Fair Cut
- Poor Cut
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