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Diamond Education
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Diamond Education

Jos Alukkas has a brilliant collection of traditional round diamonds and also possesses the finest non-round or "fancy-shaped" diamonds available in the market. All our certified diamonds are graded by International Diamond Grading laboratories like GIA,IGI etc. and to have FL-SI2 clarity, D-J colour, and Ideal, Very Good, Good or Fair cut. The diamonds come in round, princess-cut, Asscher-cut and emerald-cut shapes.

Shape
Choose Your Diamond Shape

Since all diamond shapes are different, their unique characteristics determine the quality for each shape. Select your shape below to learn how to recognize a beautiful diamond

Round

The round brilliant cut diamond is by far the most popular and widely researched diamond shape available today. A round diamond will give the buyer more flexibility in terms of balancing cut, color and clarity grades, even while maintaining the fire and brilliance required. To maximize the brilliance of a traditional round diamond, select one in the two highest cut grades, ideal or very good, and choose ideal, excellent, or very good polish and symmetry grades.

Princess

This is our most popular non-round diamond. Its beautiful brilliance and unique cut makes it a favourite option for engagement rings. The princess has pointed corners and is traditionally square in shape. While choosing a color grade, keep in mind that while the price of a J-color non-round diamond is exceptional, the color may be slightly visible in the corners. Also, princess-cut diamonds can vary greatly in how square or rectangular they get. Given below are length-to-width ratios for different princess-cut diamond shapes For a square princess diamond shape, look for length-to-width ratios between 1 and 1.05. If you prefer more of a rectangular shape, look for length-to-width ratios greater than 1.10.

Emerald

What makes this shape different is its pavilion, which is cut with rectangular facets to create a unique optical appearance. Due to its larger, open table, this shape highlights the clarity of a diamond. If you choose an emerald-cut with a lower clarity grade, such as SI, be sure to review the clarity plot on the diamond certificate. Also, emerald-cut diamonds can vary greatly in how rectangular they are.

Asscher

This unique shape is nearly identical to the emerald-cut, except that it is square. Also, this shape has a pavilion, which is cut with rectangular facets in the same style as the emerald-cut. When choosing a color grade, note that while the price of a J-color non-round diamond is exceptional, the color may be slightly visible in its corners. All Asscher-cut diamonds from Jos Alukkas will appear square, because each one is guaranteed to have a length-to-width ratio between 1.00 and 1.05.

Marquise

The shape of a marquise diamond can maximize the carat weight, giving you a much larger-looking diamond. The diamond looks beautiful when paired with round or pear-shaped side stones, and the length of the marquise makes one's fingers appear long and slender

Oval

An oval diamond has brilliance similar to a round diamond. Oval diamonds are also very popular as their length can accentuate long, slender fingers. For the most traditional oval diamonds, look for length-to-width ratios in the range of 1.33 and 1.66

Radiant

The Radiant cut is defined by trimmed corners and they help make this cut a popular and versatile choice for jewellery lovers. A radiant-cut looks equally beautiful set with either baguette or round side-diamonds. Radiant-cut diamonds can vary in their degree of rectangularity. For a radiant diamond shape that is square, look for length-to-width ratios between 1 and 1.05. If you prefer more of a rectangular shape, look for length-to-width ratios greater than 1.10.

Pear

This brilliant-cut diamond is also known as a teardrop for its single point and rounded end. If you choose an elongated pear shape, the length of the diamond creates a subtle slimming effect on the fingers. For the most traditional pear-shaped diamond, look for a length-to-width ratio between 1.45 and 1.75.

Heart

The heart is the ultimate symbol of love. The unique look of the heart-shaped diamond helps make it a distinctive choice for a variety of diamond jewellery. When choosing a color grade, consider that while the price of a J-color heart shaped diamond is exceptional, color may be slightly visible in its corners. For a more traditional heart-shaped diamond, look for length-to-width ratios between .90 and 1.10.

Cushion

This unique shape has been popular for more than a century. Cushion-cut diamonds (also known as 'pillow-cut' diamonds) have rounded corners and larger facets to increase their brilliance. These larger facets highlight the diamond's clarity.Cushion-cut diamonds are available in shapes ranging from square to rectangular. For a cushion-cut diamond that is square, look for length-to-width ratios between 1 and 1.05.

Clarity
What is Clarity?

In gemology terms, clarity is defined as the number and size of tiny imperfections found in almost every diamond under 10X magnification. Most of these imperfections are not visible to the naked eye and hence do not affect the diamond's beauty in any way. According to experts, clarity has the least impact on the diamond's physical appearance. The imperfections in diamonds are known by different technical names like blemishes and inclusions, among others. Diamonds with the least and smallest imperfections are said to be of the highest clarity.

DIAMOND CLARITY
FL, IF

Flawless, Internally Flawless: No internal or external imperfections. Internally Flawless: No internal imperfections. Very rare.

VVS1,VVS2

Very, Very Slightly Included: Very difficult to see imperfections under 10x magnification. An excellent quality diamond.

VS1,VS2

Very Slightly Included: Imperfections are not typically visible to the unaided eye. Considered to be less expensive than the VVS1 or VVS2 grades.

SI1,SI2

Slightly Included:Imperfections are visible under 10xmagnification, and may be visible with the unaided eye. A good diamond value.

I1

Included: Jos Alukkas offers a limited selection of jewellery with diamonds of I1 grade clarity. This grade of diamonds will have minor inclusions that may be visible to the unaided eye.

I2, I3

We does not carry diamonds of I2 or I3 grade clarity

Which Clarity Grade Is Suitable For Me?

While selecting the diamond, opt for an 'eye-clean' diamond, i.e., one, which has no imperfections visible to the unaided-eye through the crown. Diamonds of this clarity are less expensive than flawless (FL) or internally flawless (IF) diamonds. Flawless or internally flawless stones are very rare and highly priced. Additionally, imperfections in diamonds graded Slightly Included (SI) are not visible to the unaided eye, thus making them highly valuable.

Cut
Definition of a Cut

Gemologists often consider the cut to be a diamond's most important characteristic. The cut has an overall influence on a diamond's beauty. What is generally known as a sparkle of a diamond is determined by the cut. Jos Alukkas' gemologists recommend that client select the highest cut grade possible within their budget as the cut is the most important parameter of a diamond's appearance. A diamond's cut grade is a measure of the gem's light performance or sparkle. When a diamond is cut with the proper proportions, light is returned out of the top of the diamond (referred to as table). If the cut is too shallow, light leaks out of the bottom. If the cut is too deep it escapes from the sides.

Different Types of Cut Grades

Ideal cut:This cut represents nearly top 3% of diamond quality based on cut. It reflects nearly all the light that enters the diamond. It is considered an exquisite and rare cut.
Very good cut: Represents roughly the top 15% of diamond quality based on cut. Reflects nearly as much light as the ideal cut, but is sold at a lower price. Good cut: Represents roughly the top 25% of diamond quality based on cut. Reflects most of the light that enters. Considered to be less expensive than a very good cut
Fair cut: Represents roughly the top 35% of diamond quality based on cut. Even though it is still a quality diamond, a fair cut will not be as brilliant as a good cut.
Poor cut: The poor cut grade includes diamonds, which are so deep and narrow or shallow and wide that they lose most of the light from the sides and bottom. Jos Alukkas does not offer diamonds with Poor Cut Grades.

What Cut Grade Is Right For Me?

Diamonds with a cut grade of good or very good represent an excellent combination of beauty and value. They are a perfect choice for the customer's budget

Carat
Key Points

Experts define carat as a measure of a diamond's weight. As carat by itself will not accurately show a diamond's size, we view it from the top. This is done because that is how we view diamonds when they are given to us set in a ring. To understand diamond size, carat weight should be considered in conjunction with two other criteria, namely, distance in millimetres across the top of the diamond and the gem's cut grade.

Diamond Carat Size Chart

This print out illustrates how diamonds of different carat weights and shapes will appear when viewed from the top down. Your diamond may differ from the printout in length/width ratio, table, and depth.

While deciding on carat weight, it is important to measure the distance across the top of the diamond as this is how we view a stone when set into a ring A diamond's cut grade must also be considered because when a diamond is cut with the proper proportions, the maximum amount of light is returned out of the top of the diamond. Thus, when a diamond is well cut, the light reflected out of the top makes it appear larger. In addition, much of the weight of a poorly cut diamond may be 'hidden' in its base, thus making the diamond appear smaller than its actual carat weight. It is therefore possible to have a diamond of a lower carat weight, but of higher cut grade that appears larger than a diamond with a larger carat weight, but with a poor cut. This chart illustrates how diamonds of different carat weights look when set in a ring. Note that a 2-carat diamond does not appear to be twice the size of a 1-carat diamond when viewed from the top.

choosing diamond size
What Carat Weight Is Right For Me?

The important factors determining the carat weight of a diamond are the correct finger size, the size of your setting, and also your budget. If a large carat weight is what you want and you have budget constraints, opt for a diamond with a good cut, SI1-SI2 clarity, and I or J color grade. Diamond prices are the highest at the full and half-carat weights. Gems just below these weights cost a lot lesser, and as carat weight is distributed across the whole diamond, small size differences are almost impossible to detect. Another factor to be considered is the size of the finger; the smaller the finger, the larger the diamond will appear. A 1.5-carat diamond solitaire looks much larger on a size 4 finger than on a size 8.

Colour
Main Points

A diamond's color in reality actually refers to its lack of color, thus grading the whiteness of the gem. A color grade of D is the highest possible, while Z is the lowest. Jos Alukkas only sells diamonds with a color grade of J or higher. The color manifests itself in a diamond as a pale yellow. This is why a diamond's color grade is based on its lack of color. The less color a diamond has, the higher its color grade. After cut, color is generally considered the second most important factor while selecting a diamond. This is because the human eye tends to first detect a diamond's sparkle and then its color. At Jos Alukkas, you'll find only the finest diamonds with color graded D-J. Diamonds graded J or better are colorless or near-colorless, with color that is typically undetectable to the unaided eye.

Which Color Should I Choose?

The purist customer should opt for a colorless diamond with a grade of D-F for a diamond with no discernible color.

DIAMOND COLOR
D

Absolutely colorless. The highest color grade. Extremely rare

E-F

Colorless. Minute traces of color can be detected by an expert gemologist. Considered a rare diamond.

G-H

Near-colorless. color difficult to detect unless compared side-by-side against diamonds of better grades. An excellent value.

I-J

Near-colorless. An exceptional value with slightly detectable warmth or tone.

K-M

Noticeable color.Not carried by Jos Alukkas

N-Z

Noticeable color. Not carried by Jos Alukkas.

Certification

After the decision to purchase the diamond has been made, the customer must next ask for a copy of the certificate, which guarantees that the stone has undergone an unbiased, professional examination

What is a Certificate?

A diamond certificate (also known as diamond grading report, diamond dossier or diamond quality document) is a report prepared by a team of gemologists. They evaluate, measure and study the stone with trained eyes, a jeweller's loupe, a microscope, and other industry tools. The final certificate includes an analysis of the diamond's dimensions, clarity, color, polish and symmetry among other things. Most round diamonds also include a cut grade in the final certificate.

IGI's Grading Standards

Worldwide, consumers depend on the International Gemological Institute or (IGI) reports as the final word on the quality of the precious stone. The IGI is famous for its strict impartiality and adherence to the international grading standards. All IGI Laboratories worldwide follow a set of basic principles, which protect the objectivity and accuracy of every report released. The IGI Laboratories are characterized by highly trained staff, state-of-the-art security and monitoring features.

GIA Certification

The Gemological Institute of America or GIA as it is famously known is a non-profit organization conducting research and studies in the field of jewellery and gemology. Since 1931, the GIA has been studying and maintaining the standards used in understanding the quality of gems and other precious metals. The institute is a world-famous data bank on different topics related to gems and jewellery and offers consultations to people in the business, the general public and the media. The Four Cs (cut, clarity, color, and carat weight), used as an international standard to understand the quality of diamonds, was brought out by the GIA in 1953.

Metal Education
Gold Education
Gold

Well-known for its distinct yellow color, gold is resistant to rust, tarnish, and corrosion. Although gold is strong, it's also the most malleable of all precious metals.Well-known for its distinct yellow color, gold is resistant to rust, tarnish, and corrosion. Although gold is strong, it's also the most malleable of all precious metals.

Purity

Pure gold is too soft for everyday wear, so it is alloyed with a mixture of metals like silver, copper, nickel, and zinc to give it strength and durability. Karatage, denoted by a number followed by 'k' indicates purity, or how much of the metal in a piece of jewellery is gold. Karatage is expressed in 24ths, making 24k gold or 100% gold.

Yellow Gold

Natural gold and color-saturated alloys are used to give yellow gold jewellery its rich shine. The most commonly used alloys are copper with a red hue, and silver with a green hue. A mix of copper, silver and pure gold gives the metal its signature warmth

White Gold

The main attraction of white gold jewellery is its silvery white nature. In order to make the gold white, it is combined with metal alloys that are white in nature and plated with an extremely hard element called rhodium. Although strong, rhodium may wear away over time. Replating is a simple process that can be done to restore the whiteness of the jewellery.

For More Information

Gold, element Au, was one of the first known metals. The gold standard defines the world's currency system, whereby money represents a value in gold.

24 karat = 100% gold
Too soft for fine jewellery

22 karat = 91.66% gold
Too soft for fine jewellery

18 karat = 75.0% gold
Ideal for fine jewellery

14 karat = 58.3% gold
Ideal for fine jewellery

10 karat = 41.7% gold
Not acceptable for jewellery

Gold Jewellery

Our 18k and 14k gold jewellery is intricately crafted into beautiful pieces for every occasion or style.

Rose Gold

The pink hue of rose gold jewellery is created by using a copper alloy. As with yellow and white gold, the overall amount of metal alloys is the same for rose gold. The only difference is the type of alloys.

Pricing

Gold prices are dependent on several factors like the purity of the gold used (karat weight), the market value of gold, and the level of craftsmanship and design invested in each piece of jewellery

Care

Since gold is a natural element, it is affected by chemicals like chlorine and other cleaning products. It is recommended that one should remove jewellery while working with chemicals. This helps in reducing daily abrasions and prolongs the lustre. To clean gold jewellery, use a solution of warm water and detergent-free soap with a soft-bristled brush.

Platinum Education
About Platinum

Platinum is the most in-demand metal for engagement rings and wedding bands because of its natural white sheen that never fades

Density and Durability

Platinum is generally considered to be a very durable metal. Its density also makes it the most secure setting for any diamond or other gemstone. As platinum is a naturally white metal, re-plating is not necessary as the metal will always maintain its beauty

Platinum's Patina

Though it is the strongest of jewellery metals, platinum can get scratched and develop a patina of wear. Many consider the patina to be a unique and often desirable attribute of the metal. The pre-patina shine and reflective lustre can easily be revived by merely buffing it with a soft cloth.

Purity of Platinum

Platinum jewellery is very rare; in fact, 30 times more so than gold. The purity of the metal makes it naturally hypoallergenic and so it is the ideal metal for people with sensitive skin. Platinum is made in to jewellery it is often accompanied by a PGI certification which has an International Purity at 950.

How to Maintain Platinum's Metal Lustre

Maintaining Platinum's metal lustre is very easy. Soak the platinum in a mild solution of warm soapy water for some time. After that, gently scrub it with a soft-bristled brush

Tips and Hints
Diamond Carat
  • While deciding on the size of the diamond to be purchased, importance should not be given only to carat weight. The carat weight is dependent on other factors like the diamond's cut grade and the distance (in millimetres) across the top of the diamond.
  • Diamond prices are the highest at the full-carat and half-carat points.
  • According to Jos Alukkas gemologists, the customer should give utmost priority to the diamond cut as it determines the diamond's beauty. Their advice to customers is to purchase the highest cut grade possible within their budget.
  • The diamond's shape gives an idea of the jewel's form like round or oval while the cut is a measure of how the diamond is able to reflect light. It is also known as sparkle. Dull and glassy diamonds represent bad cuts and have dark areas from where light leaks out.
  • The rates of highest cut grade diamonds represent not only their rarity but also the experience and talent required to produce the stone. It also factors in the additional time required for making the stone.
Diamond Colour
  • Colour is the second most important factor to be considered while purchasing a diamond. The colour starts becoming more visible with increasing diamond size. It is an important factor while purchasing diamonds of two carats or more.
  • The visible difference between diamonds of one colour grade, for example, G to H or I to J, is very minor and cannot be detected by the naked eye. This small difference, however, can have a large impact on the customer's budget.
  • Diamond shapes like round or princess, which reflect more light, can mask more colours.
  • The type of metal in which the diamond is set complements its colour. Customers can opt for diamonds graded I or J set in yellow gold. Diamonds from the colour grade of D-H look good with platinum.
  • The rates of highest cut grade diamonds represent not only their rarity but also the experience and talent required to produce the stone. It also factors in the additional time required for making the stone.
Diamond Clarity
  • Regarding diamond clarity, Jos Alukkas gemologists say that most of the imperfections are so minute that they are not visible to the naked eye.
  • If purchasing on a tight budget, it is better to opt for a diamond with visible imperfections and conceal it under a ring prong. In this manner not only has the purchase been made, the purse strings are also not too stretched.
  • As the diamond size increases, so does the size of the facets. This increases the need to purchase the highest-cut diamond possible within the customer's budget.
  • Asscher and Emerald-shaped diamonds have long facets, which give priority to transparency over sparkle. For these shapes, Jos Alukkas gemologists recommend that customers buy diamonds with a clarity grade of VS1 or better. This is done so that the imperfections are not so easily visible.
Diamond Clarity
  • According to experts, the diamond's sparkle gives it a much bigger appearance than based on only the carat weight.
  • Different diamonds may have different types of brilliance, scintillation, and fire but the beauty of a well-cut diamond can be compared to none.
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Today's gold rate Applicable for online purchase only
Updated on: 16-03-24, 9:35:01 AM
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