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ZAFFIRI

Sapphires are one of the three precious colored gemstones. The others being Rubies and Emeralds.  It is a variety of the mineral Corundum which is a mineral that includes both sapphires and rubies. Red corundum is known as ruby and all other colored corundum are known as sapphires with blue being the most common. Sapphires that are not blue are known as fancy sapphires and can occur in yellow, purple, orange, and green colors; “parti sapphires” show two or more colors.  Sapphires are the single most versatile stone with so many color choices and a hardness only beaten by diamonds..

Composizione, formazione e origini
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Chimicamente, gli zaffiri sono composti da ossido di alluminio (Al₂O₃). Ciò che conferisce agli zaffiri i loro colori sbalorditivi sono gli oligoelementi che vengono incorporati nella struttura cristallina durante la formazione. Ad esempio:
Gli zaffiri blu devono il loro colore alla presenza di ferro e titanio.
Gli zaffiri rosa contengono tracce di cromo.
Gli zaffiri gialli e verdi sono influenzati dalla combinazione di ferro e altri elementi.
Gli zaffiri hanno un sistema cristallino trigonale, che forma cristalli prismatici esagonali. Sono eccezionalmente duri, classificandosi 9 sulla scala di Mohs, appena sotto i diamanti, il che li rende adatti all'uso quotidiano in tutti i tipi di gioielli.

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Where Are sapphires Found?

The world’s finest sapphires come from a handful of renowned sources, each with distinct qualities:

  • Sri Lanka (Ceylon): Known for vibrant, light-colored sapphires—from sky blue to cornflower—and a variety of fancy colors.

  • Myanmar (Birmania): Famed for deep, richly saturated “Burmese” blues with a silky luster.

  • Kashmir (India): Exceptionally rare, with velvety, deep blue hues prized by collectors.

  • Madagascar: A modern leader in sapphire production, offering high-quality stones in blue, pink, and yellow.

  • Altre fonti: Australia, Thailand, and Cambodia also yield sapphires with unique characteristics.

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Nature’s Most Colorful Gem
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Il colore ha la maggiore influenza sul valore di uno zaffiro e gli zaffiri preferiti hanno una saturazione del colore blu da forte a vivido. Gli zaffiri blu più pregiati vanno dal blu vellutato al blu violetto, in toni medio-medio scuri. Gli zaffiri con queste qualità comandano i prezzi più alti per carato. Gli zaffiri blu meno preziosi potrebbero anche essere grigiastri, troppo chiari o troppo scuri.

Mentre il classico zaffiro blu intenso è forse il più iconico, gli zaffiri sono disponibili in una gamma mozzafiato di colori, ognuno con il suo fascino e valore unici. Queste variazioni di colore sono dovute alla presenza di diversi oligoelementi e all'influenza di vari fattori durante la formazione della pietra preziosa.

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Sapphire Color Intensity
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When it comes to evaluating the quality of a colored sapphire, color typically takes center stage. The intensity scale measures how saturated the hue appears in the gem, as well as its overall lightness or darkness. Among the various levels of intensity, “Vivid” is usually regarded as the most premium. That said, color perception is highly personal—what one person sees as perfect may differ from another’s preference. Beauty, after all, is in the eye of the beholder.

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Sapphires Hue
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Hue refers to the sapphire’s basic color, with blue being the dominant hue in blue sapphires. While a pure blue is most desirable, slight secondary hues like violet can enhance a stone’s vibrancy. In contrast, greenish or grayish hues typically reduce visual appeal and market value. Evaluating both dominant and secondary hues is essential to judging a sapphire’s true quality.

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Sapphire Tone
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Tone describes how light or dark a sapphire appears and plays a crucial role in its overall beauty. The ideal tone is medium to medium-dark, offering rich color without compromising brilliance. Sapphires that are too light may look pale and lack depth, while overly dark stones can appear nearly black, reducing their sparkle and visual appeal. Balanced tone enhances both color and luminosity, making it a key factor in evaluating quality.

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sapphire Durability
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Sapphires score a 9 on the Mohs scale of hardness, making them one of the toughest gemstones available—second only to diamonds, which top the scale at 10. This exceptional hardness makes sapphires an excellent choice for everyday jewelry and a strong alternative to diamonds, especially when compared to softer stones

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Naturale, trattato e sintetico
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Sapphires are classified into four main types based on their origin and treatment: non trattati, trattati, sintetico e simulante. Each type differs in how it is formed or enhanced, which directly affects its appearance, rarity, and value. Understanding these categories is key to recognizing the quality and authenticity of a sapphire

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Trattamenti allo zaffiro
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Sapphires are among the most coveted gemstones, admired for their vivid colors and durability. However, not all sapphires are created equal. Many undergo various treatments to improve their appearance. These treatments can significantly affect the gem’s value, longevity, and even how it should be cared for. Here’s a guide to the full spectrum of sapphire treatments—from the completely natural to the most intrusive.

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Saturation in Sapphires
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Saturation measures the intensity or purity of a sapphire’s color. High saturation results in vivid, lively stones with rich coloration, while low saturation produces grayish or muted sapphires that appear dull. Strong saturation, especially when paired with ideal tone and hue, is a hallmark of premium-quality sapphires.

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Consistenza del colore
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Unlike diamonds, which are assessed using a globally recognized grading system, sapphires and other colored gemstones do not follow an official clarity standard. In the gemstone world, clarity is typically judged with the naked eye, rather than under the 10x magnification standard used for diamonds. Clarity has an impact on sapphires prices and rarity.  Sapphires typically have some inclusions and those with extremely high clarity are rare and very valuable.

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SAPPHIRE CLARITY
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Unlike diamonds, which are assessed using a globally recognized grading system, sapphires and other colored gemstones do not follow an official clarity standard. In the gemstone world, clarity is typically judged with the naked eye, rather than under the 10x magnification standard used for diamonds. Clarity has an impact on sapphires prices and rarity.  Sapphires typically have some inclusions and those with extremely high clarity are rare and very valuable.

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VALUING SAPPHIRES
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Saturation measures the intensity or purity of a sapphire’s color. High saturation results in vivid, lively stones with rich coloration, while low saturation produces grayish or muted sapphires that appear dull. Strong saturation, especially when paired with ideal tone and hue, is a hallmark of premium-quality sapphires.

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