Loose Diamonds

Loose Diamonds

At A Star Diamonds we have a wide selection of stunning and unique loose diamonds , varying in colour, cuts and sizes, allowing you to present a fashionable statement, regardless of your style. Throughout history, diamonds have been the most valued gemstones, worn and admired by royalty as a symbol of strength,status and divine invincibility.Over the centuries,diamonds have also become the ultimate symbol of love in the form of contemporary wedding bands, engagement rings and eternity rings. Diamonds posses a unique character, elegance and remain simply timeless, making them a great choice of gemstone for any piece of jewellery.

Compare, round brilliant, oval, emerald, radiant, pear, teardrop, square, Asscher, trillion, trilliant, triangular, heart, marquise, cushion, loose diamonds. Cut can also refer to the diamond shape, the most popular of which is the round brilliant cut. There are, however, many other diamond shapes available which are known as a fancy cut, including popular choices such as horse cut,star cut and baguette. Deciding the shape of the diamond is a matter of personal taste and style. however over the past century, diamond cutters have perfected the round brilliant cut using advanced light theories and mathematical calculations to develop its optimum fire and brilliance,they are the only diamond shape to have perfectly defined proportions and account for more than three-quarters of all diamonds sold today.

 

Round Brilliant Diamonds

Originally developed by Marcel Tolkowsky in 1919 with a total of 58 facets, round brilliant cut is the most popular option for an engagement ring. The stone is cut in the shape of a cone with the top rounded off which enables it to return the light that enters it, it is considered the most brilliant of diamond cuts and its symmetrical shape allows it to maximise all its qualities. It is the standard for all other diamond shapes, more than 75% of diamonds sold today are round brilliant diamonds.

A Star Diamonds is specialized in : Perfect,Triple Excellent,Hearts & Arrows, Ideal Cut diamonds. The round brilliant diamond displays most fire, scintillation and cut and it is polished by our skilled Antwerp cutters .

Asscher Diamonds

This cut features large step facets and a high crown that produces a brilliance unlike any other diamond shape. In fact, diamond experts often refer to the shine and sparkle of an Asscher cut diamond as an endless hallway with reflective mirrors. Although the Asscher cut is known as a square shape, it is actually somewhat octagonal since all four corners are cropped. However, these cropped corners are not noticeable once the diamond is mounted into a four-prong setting, unlike a true octagon.Asscher cuts look similar to emerald cuts with the most obvious difference being that they are square, as opposed to rectangular. Abraham and Joseph Asscher created the Asscher cut diamond in 1902 in Dutch part of Europe today this shape is outdated and viewed from the top it shows like four wings.

Pear Diamonds

The pear shape diamond cut is known as a modified brilliant cut diamond, which is a combination of two different cuts. Those cuts are the marquise cut and the round brilliant with 58 facets. It combines the best of both cuts into an interesting diamond shape. Pear shape diamonds have to be evenly cut since the parts of the curve should match on the shoulders. The typical length of the pear cut ranges from 1.40 to 1.70, and the choice of ratio is often a personal preference. Some women like long diamonds while others want wider diamonds, Ideal for pendants, necklaces and earrings. This unique diamond which is also known as a teardrop because of its single point and rounded end exudes simple sophistication. On an engagement ring the point of the diamond can be worn towards or away from the hand depending on the preference of the individual.

Heart Diamonds

The heart shaped diamond is essentially a pear-shaped diamond with a cleft at the top. And while that technical description of the heart-shaped diamond is anything but sentimental, the diamond itself is is considered by some to be the most romantic of all diamond cuts. heart shaped diamond can be quite fiery with excellent sparkle.well proportioned heart diamonds are very rare. The best shaped Heart diamonds are cut with even lobes and with a well-defined outline. Heart shape diamonds are hard to find and are considered most sentimental of all diamond shapes.There's no better way to express your love than with a heart shaped diamond, it is the ultimate symbol of love. A heart shaped diamond is similar to a pear shaped diamond with a cleft cut into its top. This fancy diamond cut adds a distinct, feminine and romantic touch to any piece of diamond jewellery. The cut requires a highly skilled diamond cutter to ensure optimum brilliance as it is intricate.

Radiant

Radiant Cut Diamonds The radiant cut diamond is a beautifully symmetrical, non-traditional cut, the radiant cut combines the brilliance of a round and the purity of an emerald cut. Trimmed corners give it versatility among all kinds of jewelry, especially engagement rings. The faceting of a radiant cut gives it a fiery look compared to a princess cut, while maintaining soft, cut corners. The radiant fuses the plus points of other popular diamond shapes. The rectangular radiant cut is an excellent option for buyers who like the emerald cut shape, but want something with the brilliance of a round. Radiant cut diamonds tend to be a very popular choice for fancy colored diamonds because they capture more rough diamond color than other cuts. A ratio of 1.00 to 1.05 will create a square shape, and from 1.30 to 1.50 will produce a rectangle. With it 70 facets it maximize the sparkles and the effect of color refraction.Developed in the 1970s by World War II veteran Henry Gossbard,They are typically rectangular in shape but can also be square.

Cushion Diamonds

The cushion cut is an antique cut that most often resembles a cross between the Old Mine Cut (a deep cut with large facets that was common in the late 19th and the early 20th centuries) and a modern oval cut. This shape is also sometimes referred to as the pillow-cut or the candlelight diamond (a reference to cuts designed prior to electric lights, when diamonds sparkled in the light provided by candles).this cut is not as fiery or brilliant as many of the newer cuts, but it has a marvelously romantic and classic look and definitely stands out from the crowd of round brilliants. A Cushion diamond is a modified brilliant cut with cropped corners with 58 facets. Cushion diamonds are generally thicker and will best reflect colors.Over the last 100 years, the cushion cut diamond has gained popularity because of its rounded corners and larger facets for enhanced brilliance. Also known as pillow cut diamonds; they can be square or rectangular in shape

Marquise Diamonds

Marquise diamonds also named Marquee or Navette diamonds exist swallow, Medium an thick.Medium is best. Marquise diamonds have the same brilliance and facets as a round brilliant cut diamond. Folklore would say the marquise shape was created at the request of King Louis X1V who wanted a stone to represent the sultry smile of his mistress, the Marquise de Pompadour. The end result was a lengthened shape in a diamond cut with sharp ends. The marquise diamond is cut to exploit its carat weight, giving a superior looking stone.Marquise diamonds work beautifully as a central stone in a diamond engagement ring, or as an accent stone in diamond jewellery.

Princess Diamonds

A Princess cut, also named Princessa diamond, has similar facets to a round brilliant with rectangular appearance, square modified brilliant cut. A perfect princess diamond must be square shaped with 90 degree angles on each corner and with 57 to 70 facets. A Princess shaped diamond is a young cut, designed for getting maximum brilliance from a square cut.Created in the 1970s, this fairly modern style is an adaptation of the standard brilliant cut which highlights the diamond's fire. The top of a princess cut diamond is square with pointed corners, while its general shape is a pyramid. Radiating fire and brilliance, princess cut diamond engagement rings are a contemporary alternative to the classic round brilliant diamond engagement ring.

Trillion Diamonds

A Trillionshaped diamond, also named Trilliant diamond is a beautiful unusual triangular fancy shape with 50 facets. Very commercial economical diamond shape due to the flat diamond cut. The corners of this shape can be straight edged and curved. A One carat trillion looks as large as a 1.50 Carat round brilliant diamond.If you appreciate bold and dramatic jewellery, then the trilliant diamond may be the perfect cut for you. Created in the 1970's in Amsterdam, trilliant diamonds vary between traditional triangular shapes with pointed corners to a more rounded shape. A unique and intriguing diamond shape, the trilliant diamond is rarely used as a central stone in diamond jewellery but creates an irresistible accent stone for a round brilliant diamond solitaire.

Oval shaped

diamond has 56 facets in elliptical shape and is similar to a round brilliant. Created in the early 1960’s an oval diamond is an elliptical shape, family of the round brilliant diamond shape. Oval diamonds are very popular due to their big appearance, displaying much fire and scintillation.An oval diamond engagement ring is perfect for the woman who adores the fire of the round brilliant diamond, but wants something that is slightly different. The Oval shape was designed in the 1960s by Lazare Kaplan, the cousin of Marcel Tolkowsky who aided the development of round brilliant diamonds. Oval shaped diamonds share a similar cut with the traditional round brilliant but have a more contemporary edge.

Emerald Diamonds

Emerald shaped diamonds have 24 facets. They can be rectangular or square shaped. They have beveled corners and step cut facets. Select a good clarity and color because of the open shape! The Emerald cut is a very noble cut especially for men. As its name implies, this method of cutting was originally used for the cutting of emeralds, but was revealed to be useful for other gemstones, including diamonds. The emerald cut diamond is designed to draw attention to a diamond's shine. It is a step cut – a cut with rectangular facets that are arranged parallel to each edge of the diamond. An emerald cut diamond has a rectangular top with chiseled corners. This shape is enjoying a huge revival in diamond jewellery.

Rough Diamonds

Diamond is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at standard conditions. Diamond is renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material. Those properties determine the major industrial application of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells. Because of its extremely rigid lattice, it can be contaminated by very few types of impurities, such as boron and nitrogen. Small amounts of defects or impurities (about one per million of lattice atoms) color diamond blue (boron), yellow (nitrogen), brown (lattice defects), green (radiation exposure), purple, pink, orange or red. Diamond also has relatively high optical dispersion (ability to disperse light of different colors) Most natural diamonds are formed at high temperature and pressure at depths of 140 to 190 kilometers (87 to 118 mi) in the Earth's mantle. Carbon-containing minerals provide the carbon source, and the growth occurs over periods from 1 billion to 3.3 billion years (25% to 75% of the age of the Earth). Diamonds are brought close to the Earth's surface through deep volcanic eruptions by magma, which cools into igneous rocks known as kimberlites and lamproites. Diamonds can also be produced synthetically in a HPHT method which approximately simulates the conditions in the Earth's mantle. An alternative, and completely different growth technique is chemical vapor deposition (CVD). Several non-diamond materials, which include cubic zirconia and silicon carbide and are often called diamond simulants, resemble diamond in appearance and many properties. Special gemological techniques have been developed to distinguish natural diamonds, synthetic diamonds, and diamond simulants. The word is from the ancient Greek ἀδάμας – adámas "unbreakable".

Color Diamonds

Diamonds occur in a variety of colors steel gray, white, blue, yellow, orange, red, green, pink to purple, brown, and black.Colored diamonds contain interstitial impurities or structural defects that cause the coloration, whilst pure diamonds are perfectly transparent and colorless.Most of you probably already know that there is a scale of diamond color from D to Z.  D, of course, is completely colorless while Z is heavily tinted with yellow.But all along that scale from D to Z, the discussion is still about what are categorized as “white diamonds.”  A Z color diamond is a heavily yellow tinted white diamond.Natural Fancy colored diamonds are 200 times more rare and expensive than white diamonds ,Its Impressive to know that the annual World production of white diamonds (Exceptional White + D color LC/IF) is all together only a 900 Carats, This emphasizes the extreme rareness of natural colored diamonds.With diamonds in the normal range, value is based on the absence of color, because colorless diamonds are the rarest. With fancy color diamonds—the ones outside the normal color range—the rarest and most valuable colors are saturated pinks, blues, and greens.