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Diamonds and Jewellery
How do I know if a diamond is genuine?
Which shape gives me the greatest value for my money?
What is the structure of a diamond?
OK; now that I know the terminology, what are the more important factors?
How many facets does a diamond have?
What are the "four C's" relating to diamond quality?
The four C's are Carat (weight), Colour, Clarity and Cut of the stone.
1. Carat: The weight of the stone, referred to in points in case of small stones.
- 1 carat is 1/5 of a gram or 200 milligrams.
- There are 100 points to a carat.
- A 75 point stone is .75 carat.
"Carats" represent the weight and not the physical size of the stone.Example, 1 carat diamond is physically larger than a 1 carat ruby since ruby is denser than diamond.
2. Colour: Colour is usually undesirable in diamonds. Typically ratings
will be alphabetical with the earlier letters of the alphabet having less colour.
AGS has a similar 0-10 scale.
- D, E and F - "Colourless"
- G, H, I & J - "near colourless"
- K, L and M - faint yellow or "top silver"
- N to Z - very light or “light yellow”
- Z+ - grades are considered "fancy yellow"
Most stones you will find will be in the E-F to the J-K range.
3. Clarity: You will typically find ratings such as this:
|VVS1||1||Very, Very slightly included|
|VVS2||2||VVS1 to a less perfect degree|
|VS1||3||Very slightly included|
|VS2||4||VS1 to a less perfect degree|
|SI2||6||SI1 to a less perfect degree|
|I2||8-9||I1 to a less perfect degree|
Inclusions are imperfections within the stone. Inclusions range from bits of
carbon (black spots) to slight cracks (called "feathers") within the stone.
VVS1 to SI2 represent inclusions that are not visible to the naked eye.
4. Cut: All diamonds are cut. The resultant dimensions of the cut stones vary. All dimensions are given as a percentage of the width at the girdle. There are a few accepted ideal cuts, which have all of the proportions within a few percentage points of an optimum mathematical model. This optimum model returns maximum light through the top of the stone, resulting in maximum brilliance.
What is the most important C in the choice of a diamond? Colour or Clarity?
What is most important of the 4 Cs in India?
In India, Colour takes precedence over Cut. The order or priority for most Indian customers if Colour -> Cut -> Clarity.
In Southern India, where most customers are particular about dosham (defects), clarity is the most important consideration in selecting a diamond. Here, the order of priority is Clarity -> Colour -> Cut.
However, if a customer asks for a recommendation, Carat Lane always advices them to prioritize Cut and Colour over Clarity. This is because diamonds up to S1 grade are "eye clean". The inclusions are visible only under the loupe to a trained eye, and does not make any difference to the way the diamond looks
Is the shape the same as the cut?
What is an "Ideal Cut"?
The "Ideal Cut" is a cut based on a specific set of proportions for a round brilliant diamond, proposed by gem cutter Marcel Tolkowsky in 1919. While Tolkowsky's original theories presented only one particular combination of proportions for creating the best balance of brilliance and dispersion, today the American Gemological Society recognizes any diamond falling within a narrow range of proportions and finish quality as being an "Ideal Cut" (also called an "AGS 0" or "AGS triple zero").
Essentially, the larger the table, the greater the brilliance at the expense of fire. A generally termed ideal cut will have a table percentage between 53% and 57% and a depth or height of 58% to 60%. Expect to pay 15%-20% more for an ideal cut stone. Avoid stones with table percentages above 70% or depths over 64% or under 57%.
I know that most rings have inclusions; what is OK and what is not?
Is there any way to identify a poor cut?
What is the shape of the diamond used in engagement rings?
What is the best shape of diamond for an engagement ring?
Why do they seem to follow this pattern?
Should I get my diamond set in platinum or gold?
How can I be sure that I receive the same diamond after sent for inspection or remounting?
What should I look for in the workmanship of the stone?
Which are the most popular fancy colours in diamonds?
How are colour diamond prices determined?
What else should I know about colour diamond prices?
Is a fancy coloured diamond judged for clarity just like a white diamond?
Do colour undertones affect the diamond's worth?
What type of inclusions do you see most in colour diamonds?
Are "champagne pink" diamonds desirable?
What is the Bow-tie effect?
What is a Cubic Zirconia?
What are "synthetic" diamonds?
What are "conflict" diamonds?
Does all Carat Lane diamond jewellery come accompanied with a certificate?
Is it possible to have the certificate number 'engraved' onto the diamond?
How does the HRD certificate compare to GIA certificate?
How do I choose the largest diamond within my budget?
I am looking for diamonds without black inclusions. How do I identify those?
Is it important that I buy a diamond that is accompanied by a certificate?
Is there a limit to the discount value that one can avail?
What is Cash on Delivery (CoD)?
Is Cash on Delivery (CoD) available for customers outside India?
How does CoD work?
Is CoD option available for all jewellery?
Why is CoD option not available for my location?
How long will it take for me to receive the product through CoD?
Is there any additional charge for the CoD shipment?
Can I offer cheque for the payment in place of cash?
What is the option if no one is at home when the courier person comes?
Same Day Shipping
Is same day shipping available for customers outside India?
What is Try @ Home?
Is Try @ Home available outside India?
Which are the cities in which this service is available?
Do you charge for this service?
Which products can I try?
After trying, can I place the order on the spot?
How many products can I try at one time?
How will you send me the products for trial?
If I try, does it mean I must buy?
Will the manufactured product be exact same as the one I tried?
Can I request for trial at my office?
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