Diamond Education
Our Lovis experts understand the importance of diamond education - to recognise the attributes of diamonds and its exceptional quality before making an important purchase. The diamond is a complicated stone, and each aspect affects its overall beauty. Lovis Diamonds' Education is designed to answer all your questions, from a diamond's characteristics, how these characteristics influence the appearance, and the importance of these individual characteristics.
Choosing a Shape

The Round Brilliant Cut Diamond; simple yet elegant, still remains popular among many. There are 58 facets in a Round Brilliant Cut Diamond (including the culet), providing maximum optics for brilliance and scintillation. The crown of the Diamond consists of 1 table facet, 8 bezel facets, 8 star facets, and 16 upper girdle facets, the pavillion consists of 16 lower girdle facets, 8 pavillion main facets and 1 culet, which totals to 58 facets of a Round Brilliant Cut.
The Oval Cut Diamond is a modification of the popular cut - The Round Brilliant. This has become the perfect choice for buyers who are looking for characteristics similar to The Round Brilliant. Being different from the traditional Round Brilliant, it caters to buyers who go for out of the ordinary, without sacrificing the Brilliance.
The Marquise Cut Diamond is a boat-shaped brilliant stone, considered as a classic shape for Engagement Rings. It goes through a cutting process similar to that of a Round Brilliant Diamond. The only difference is the Diamond Cutter maximises the carat weight by elongating it into its distinctive 'boat-shape', resulting in the elimination of all inclusions while maintaining as much of the unblemished stone as possible. Due to its elongated shape, the imperfections of colour and clarity are more visible than The Round Brilliant.
The Pear-Shaped Diamond combines both tradition and brilliance of a round-cut with a peculiar shape, and scintillation of The Round Brilliant. It usually totals to 58 facets similar to a Round Brilliant, but creating an impression due to its uncommon shape.
The Heart-Shaped Diamond is nearly round, with the advantage of achieving a nearly round pavilion, providing beautiful Brilliance.
The Emerald Cut Diamond is known for its beauty and precision. Although it lacks the Brilliance due to its rectangular and kite-shaped facets, its extreme clarity makes up for it. This cut was originally used only on Emeralds, thus the name Emerald Cut.
The Princess Cut Diamond makes perfect Engagement Rings. Its exquisite shape is designed for achieving top Brilliance from its square cut. Do ensure that when making a purchase, the setting for your ring protects the four pointed corners.
The Trillion Cut Diamond is often traditionally used as side-stones on Engagement Rings. Its shape is a Brilliant Cut, which enables the well capturing of light, giving it sparkle and fire.
The Radiant Cut Diamond combines both the Stylish Square and Rectangular Shape with the Brilliance of the Round Cut. It involves two Diamond Cutting Style - The Round Cut Style and the Emerald Cut Style, creating a non-traditional, yet Brilliant Diamond.
The Cushion Cut Diamond is an antique cut, portraying a classic and romantic appeal.
The Asscher Cut Diamond is also known as a "Square Emerald Cut", as it is made using the Step-Cut process and has cropped corners. Due to its cropped corners, it looks octagonal at a glance. Similar to the Emerald Cut Diamond, it has the clarity of glacier-water ice.
Cleaning your diamond jewellery

Although Diamonds are the hardest substance on Earth with a high scratch resistance, it is still very sensitive to percussion and pressure during daily wear. Dirt, grease, household products and cleaning products, easily adhere to a Diamond's surface, causing it to lose its luster and brilliance over time.

Jewellery settings can often obstruct cleaning efforts, thus it can be a chore to maintain the cleanliness of a Diamond. However, periodic cleaning is still important in ensuring the luster and brilliance. This can be done by soaking your Diamond engagement and wedding rings for up to 30 minutes in a solution of dishwashing liquid and water, most suitable for prong settings. Be mindful when you decide to soak any jewellery, use mild dish soap in warm water and soak your jewellery for a few minutes. Thereafter, use a soft cloth, gently scrub the metal (Gold, Silver, Platinum) and then rinse. Alternatively, one can also use a soft brush to loosen debris that has settled on the Diamond and setting interface. Ionic cleaners can be used on most Diamond jewellery, but if your ring is set with other gemstones, you might want to try other cleaning methods as some gemstones are affected by the electrical current in the ionic cleaning process.

Bear in mind that when you're not wearing your Diamonds, do place them in a soft cloth pouch to avoid damage. Remember that Diamonds can not only scratch any other jewellery, but they can scratch each other as well. Therefore, make sure that two Diamond pieces are not stored next to each other.


The weight of the Diamond is measured in Carats. One Carat is equivalent to 0.20 grams (200 milligrams). The cost of a Diamond increases exponentially with an increase in weight. This is because larger Diamonds are rarer than smaller Diamonds, thus this rarity increases the value of larger Diamonds.

A well-cut Diamond will be symmetrically round, with proper depth and width, and have uniformity of the facets. These features will enable the Diamond to sparkle with maximum Brilliance (the total light reflected from a Diamond), Scintillation (the flashes of light, or sparkle, when a Diamond is moved) and Fire (the dispersion of light into the colours of the spectrum). Diamonds that are cut either too deep or too shallow can lose or leak light, becoming less brilliant.

As a value factor, cut refers to a Diamond's proportions, symmetry and polish. A Round Brilliant Cut Diamond has 57 or 58 facets, the 58th being a tiny flat facet at the bottom of the pavilion known as the culet. The large, flat facet on the top is the table. The proportions of a Diamond refer to the relationships between the table size, crown angle and pavilion depth.
Table Size %   Table length relative to diameter of diamond
Crown Angle   Angle between bezel facets and girdle
Gridle Thickness   Ranges from extremely thin to extremely thick (assessed visually)
Depth %   Depth of diamond relative to diameter of diamond
Cutlet Size   Ranges from pointed to extremely large (assessed visually)
Symmetry   Refers to alignment of the facets, graded poor to excellent
Polish   Smoothness of facets, graded poor to excellent

Diamonds are valued by how closely they approach colourlessness - the less colour, the higher their value. Most Diamonds may appear colourless to the naked eye, but Diamonds do have a tinge of colour even though the differences between the colour grades are extremely subtle. Colour is graded on the scale of D-Z developed by the Gemological Institute of America (GIA). Colour that is graded more than the scale of Z is known as "Fancy Colour".

A recommendation to those seeking for a "white" Diamond would be to choose a D-H colour. However, there is warmth in I, J, and K colours. Also, as low clarity is synonymous with impurity, colour is often traded off for a higher clarity.

Because Diamonds are formed deep within the Earth, under extreme heat and pressure, they often contain unique birthmarks, either internal (inclusions) or external (blemishes). Diamond clarity symbolises "purity" - the more flaws, the less valuable the Diamond. Therefore, Diamonds that are absolutely clear without inclusions-fractures, scratches, or trace minerals are referred to as flawless and are the rarest.
Flawless FL>   Included I1, I2, I3
Internally Flawless IF   No internal flaws, slight external blemishes
Very, Very Slight Inclusions VVS1, VVS2   Inclusions very difficult to see under 10X magnification
Very Slight Inclusions VS1, VS2   Inclusions difficult to see under 10X magnification
Slight Inclusions SI1, SI2, SI3   Inclusions easy to see under 10X magnification and might be visible to the naked eye
Included I1, I2, I3   Inclusions that are visible to the naked eye