Jewellery Guide | VIVIENNE DIAMANT

My Account

Login to your Vivienne Diamant account
even if you haven't created one.
You simply need to enter your email and
an one-time password (OTP) that you receive in your mailbox to login.
An OTP would be created each time you login.

Email *

Send OTP Sent (s)

One-time Password (OTP) *

Unable to receive OTP

If you are unable to receive OTP, please do the following before contacting us:
1. Check the bin of your email inbox
2. Add cs@vivienne-diamant.com to your address book to ensure that you receive our emails in your inbox

Email us

Thank you for your email. Our customer services team shall respond to your request shortly.

Jewellery Guide

Diamond

The value of a diamond is determined by its quality level. No two diamonds are identical. Each diamond has its own unique trait. The globally recognized standard for assessing diamond quality is 4C, including Cut, Clarity, Colour, and Carat.

Whether it is a central diamond or a side diamond, the diamonds used in Vivienne Diamant jewellery works are assessed according to the 4C standard:

Cut
Clarity
Colour
Carat

All diamonds selected by Vivienne Diamant must have Excellent Cut in terms of Cut.

Cut is the most important standard of 4C. If its cut is not good, a diamond would look bleak even when it has better colour and clarity level.
Cut refers to how the facets of a diamond and light interact. It is determined by symmetry, ratio, and polishing degree. In short, it is the main reason why a diamond can keep sparkling.
From the smallest to the largest, diamonds selected by Vivienne Diamant must have excellent cut. No compromise on this matter.
At this moment, diamonds used by Vivienne Diamant have a round shape. They are brilliantly cut and has 55-58% table. This is the method that produces the brightest diamonds.

The shape of diamond (such as: princess, cushion, emerald, oval, pear, marquise, heart) is not in 4C standard. Diamond shape does not grade the value and quality of a diamond. Shape refers to the geometric appearance of a diamond. It can be roughly divided into two groups: Round and Fancy Cut. A round diamond is more likely to be cut brilliantly to maximise the sparkle and brightness of the diamond. Cut and shape are different concepts though they affect each other. Cut is how diamond facets interact with light, and Shape refers to geometric appearance. Cut would define the shape of a rough diamond, but Shape does not define the Cut. Therefore, Cut reserves the most importance in the 4C standard.

All diamonds of Vivienne Diamant must have VS2 or better in terms of Clarity.

Clarity is the second most important standard of 4C. When a diamond has lower level of clarity, it means this diamond has more inclusions, which directly influence the shininess of the diamond. Inclusions will block light reflection and therefore hinder the shine of the diamond.
Clarity refers to the cleanliness and the amount of inclusion with a diamond when it is studied under a 10x magnification. Generally, the higher the clarity, the higher value that diamond has. (assuming there is no personal preference to particular shape of inclusions)
From the smallest to the largest, diamonds selected by Vivienne Diamant must at least have VS2 clarity. No compromise on this matter.

All diamonds selected by Vivienne Diamant must have F or better in terms of Colour.

In 4C, Colour and Clarity have equal importance. When a diamond has lower quality level of colour, it contains yellow colour. General public prefers diamond to be bright and transparent.
Colour refers the natural colour of a white diamond. Normally, when a diamond is closer to transparent, the higher value that this diamond would be due to its rarity. Unless there is personal preference to yellow colour, a transparent and bright diamond is much more preferable.
Industry scales diamond colour from "D" (colorless) to "Z" (light yellow). From the smallest to the largest, diamonds selected by Vivienne Diamant must at east have F-level colour. No compromiseon this matter.

Total carat of a diamond varies according to the design.

For jewellery whose central diamond is or above 0.3 carats, GIA (Gemological Institute of America) diamond certificate would be provided.

In 4C, Carat has the least importance. It is jewellery design that holds the final decision upon the total diamond carat and value of each work.
Carat refers to the weight of a diamond, not the size of it. Generally, a diamond with higher figure of carat suggests it rarity. But the value of a diamond does not just depend on its carat. For instance, even though two diamonds have the same carat, their value may depart when considering the difference of their clarity, colour, and cut.