Rutilated quartz is a variety of quartz which contains needle-like inclusions of the titanium oxide mineral rutile. These inclusions range in colour from gold, to silver, copper-red, or black, and can be illuminated under the light to spectacular effect. Sometimes the inclusions are dark enough to make the quartz appear nearly opaque, and sometimes they are distributed much more sparsely. The inclusions range from thin, sparse, and parallel, to thick, dense, and criss-crossed. The pattern of rutile inclusions in each rutilated quartz stone makes it completely unique.

Natural rutile may contain up to 10% iron and significant amounts of niobium and tantalum, accounting for the reddish tone of some of the inclusions – indeed, rutile derives its name from the Latin ‘rutilus’, meaning ‘red’. When the iron content is lower, it may appear darker, or even black in colour.

Sapphire lacks cleavage, but it can exhibit an uneven fracture. It belongs to the trigonal crystal system, structured with four axes and three planes of symmetry. However, the crystal form may vary depending on the origin of the specific gem.

Sapphire is easy to distinguish from other similar-looking gems (such as beryl, zircon, tourmaline and others) by its superior hardness and durability. This is in spite of the fact that many other gemstones share a similar colour and lustre.

Gemological properties

Mineral: Corundum

Chemistry: Al2O3 (aluminum oxide)

Crystal System: Hexagonal

Density/Specific Gravity: 3.95 – 4.03

Mohs Hardness: 9

Refractive Index: 1.762 – 1.788

Birefringence: 0.008

Buying a sapphire

Sapphire colour

As you might expect, blue is the most famous and valuable colour variety of sapphire. Burmese and Kashmir sapphires, not often seen on the market today, are highly prized for their intense blue colour. Today, Sri Lankan and Madagascar sapphires are the most common, and these range in colour from light to dark blue.

The intensity of blue is the most important factor in the desirability of a blue sapphire. A small stone with excellent colour will generally fetch a higher price than a huge stone with a washed-out colour. A rich, bright blue is the most desirable colour, rather than a blue that is too dark and inky, or too washed-out. However, a lighter blue may possess a greater brilliance that is not generally found in darker stones. Colourless sapphires are fairly rare, as there will be at least a hint of colour in most stones. Blue is considered the default colour when referring to sapphires, and all other colours are called ‘fancy sapphire’.

Trace impurities are the colouring agents in sapphires, which in blue sapphires are generally iron and titanium. Other colours of sapphire are formed by different minerals, or minerals in different trace amounts. Heat treatment can product an intense golden yellow colour, and beryllium treated sapphires can be a brilliant bright yellow. Padparascha sapphires are a pinkish-orange colour, and are particularly rare and prized by collectors.

Natural daylight is the best way to view sapphires, as artificial light can make them appear darker. It can even make them appear less attractive than they actually are in natural light.

Sapphire clarity and lustre

Sapphire can be transparent to opaque, but transparent gems are the most valuable. Some translucent materials will be cut into beads or cabochons instead of gems, but opaque materials have very little gemstone value. Sapphires have an attractive, vitreous lustre.

Sapphires, as a rule, are cleaner than ruby, and it is thus possible to find eye-clean stones. However, large eye-clean stones in ideal colours can be quite rare. In some cases, extremely fine silk through the stone can enhance the value of a sapphire, as it can cause a velvety blue colour and the asterism seen in star sapphires. However, too much silk gives the gem a greyish hue and thus renders it undesirable.

Sapphire treatment

Heat treatment is the most common treatment for sapphires, but unheated specimens can also be found. Stones are heated – usually before they are cut – to between 1700 and 1800 degrees Celsius for several hours. Rich blue, unheated stones can command very high prices, as the vast majority of sapphires today are heat treated. Occasionally, diffusion treatment is used, but this is more common for star sapphires. Beryllium is used to treat sapphires to create bright orange and yellow colours that used to be very uncommon. However, all sapphire treatments should be disclosed by the dealer.

Gemstone care

The best way to clean sapphire is using a soft cloth or brush and warm, soapy water. It should then be rinsed to remove residue. Avoid using harsh household cleaners on your sapphire, as these might cause corrosion. In addition to this, extreme heat fluctuations can cause your sapphire to change colour.

Sapphire jewellery, as with all jewellery, should be removed before playing sports in order to protect it. When you are storing sapphire gemstones, wrap them in a soft cloth and/or keep them inside a fabric-lined jewellery box.

Sapphire history and lore

Sapphire is the September birthstone, and is considered to be the stone for Taurus. For those who believe in the healing power of gemstones, wearing a sapphire is thought to protect a Taurus’s mental health.

The sapphire has been used to symbolise truth, sincerity, loyalty and peace throughout history. It has also been believed to be a talisman to protect against evil spirits. Star sapphires used to be regarded as charms to protect travellers, and were considered so powerful that their protective power would continue even when the sapphire had been passed on to another owner.

A Proposal to Remember

For many couples, the engagement ring is more than a piece of jewelry—it’s the beginning of forever. Jessica and Ethan’s love story is no exception. Ethan approached us with a vision: a timeless yet unique design that would symbolize his devotion. Together, we created a custom solitaire diamond ring featuring a vintage-inspired band. The moment Ethan got down on one knee, Jessica’s teary “yes” reflected the brilliance of their bond and the sparkle of the ring. “The Schröder & Co. Stones made it so easy to bring my dream to life,” Ethan shared. “They weren’t just jewelers—they were storytellers.”

Celebrating Milestones with Elegance

Marriages are filled with milestones, each deserving of celebration. For Michael and Sarah, their tenth wedding anniversary was the perfect occasion to revisit The Schröder & Co. Stones. Michael selected an elegant eternity band adorned with emerald-cut diamonds, symbolizing the enduring nature of their love. “The Schröder & Co. Stones has been with us since our engagement,” Sarah said. “This anniversary ring feels like the next chapter in our story.”

Timeless Gifts for Everyday Love

Not all love stories revolve around grand events. Sometimes, it’s the small, meaningful gestures that matter most. Megan, a dedicated teacher, received a delicate sapphire pendant from her fiancé, Daniel, as a “just because” gift. “Daniel said he chose sapphire because it’s my birthstone, and it makes me feel special every time I wear it,” Megan said. The Schröder & Co. Stones takes pride in helping customers like Daniel select pieces that celebrate love in its many forms, big or small.

Creating Heirlooms That Last Generations

The Schröder & Co. Stones doesn’t just create jewelry; we craft heirlooms. Samantha and her grandmother, Evelyn, recently worked with us to design a necklace using diamonds from Evelyn’s vintage brooch. “I wanted something that would carry her story into the future,” Samantha explained. The result was a stunning pendant that blends vintage charm with modern design, a true testament to the love and legacy of their family.

A Shared Mission to Celebrate Love

At The Schröder & Co. Stones, we are honored to play a role in the love stories of our customers. Whether it’s helping select the perfect engagement ring, crafting an anniversary gift, or designing custom pieces that become family treasures, our mission is to celebrate love in all its forms.

Each piece we create is as unique as the story it tells, and we’re grateful to our customers for allowing us to be part of their most cherished moments. Thank you for trusting The Schröder & Co. Stones to turn your love stories into timeless works of art.

Do you have a special story featuring The Schröder & Co. Stones? We’d love to hear it! Share your love story with us for a chance to be featured in our next Customer Spotlight.

1. Dramatic Statement Earrings

Celebrities are embracing bold, oversized earrings that make a statement. From geometric shapes adorned with diamonds to cascading chandelier designs, statement earrings are the ultimate showstoppers. Whether paired with a sleek evening gown or a chic cocktail dress, these earrings are designed to turn heads. At The Schröder & Co. Stones, our collection features a range of exquisite statement pieces, perfect for adding that red-carpet flair to any occasion.

2. Layered Necklaces for Effortless Elegance

Layered necklaces continue to be a favorite among A-listers. This trend mixes delicate chains with striking pendants, creating a look that is both versatile and sophisticated. Whether it’s a mix of gold and silver or a combination of gemstone pendants, layering allows for personalization and creativity. Explore our curated selection of layering necklaces to recreate this celebrity-approved style.

3. Vintage-Inspired Glamour

Old Hollywood is making a comeback with vintage-inspired jewelry. Think intricate filigree designs, art deco motifs, and heirloom-quality gemstones. These pieces exude timeless elegance and are perfect for those who appreciate a touch of nostalgia. The Schröder & Co. Stones offers a stunning array of vintage-inspired creations that bring classic charm to modern wardrobes.

4. Bold Cocktail Rings

Nothing says glamour like an oversized cocktail ring. Celebrities are showcasing vibrant gemstones set in intricate designs, making their hands the focal point of their ensemble. These rings are perfect for adding a pop of color and a dash of confidence to your look. Discover our exclusive collection of cocktail rings to make a bold fashion statement.

5. Modern Pearls with a Twist

Pearls have undergone a contemporary transformation, becoming a favorite among trendsetters. From asymmetrical earrings to layered pearl necklaces with edgy designs, this classic gem is now modern and chic. Our selection of reimagined pearl jewelry combines timeless beauty with innovative designs, ensuring you stay ahead of the trend.

6. Personalized and Meaningful Pieces

Celebrities are gravitating towards jewelry that tells a story, such as initial pendants, birthstone rings, and symbolic charms. These pieces offer a personal touch and hold sentimental value, making them a thoughtful choice for any occasion. At The Schröder & Co. Stones, we specialize in crafting personalized jewelry that reflects your unique journey.

7. Sustainable and Ethical Luxury

As sustainability takes center stage, many celebrities are opting for ethically sourced gemstones and eco-friendly designs. This trend aligns with a growing awareness of the environmental and social impact of jewelry. The Schröder & Co. Stones is proud to offer sustainable options, ensuring that our customers can enjoy luxurious designs with a clear conscience.

8. Stacked Bracelets and Bangles

The arm party trend is alive and well, with stacked bracelets and bangles stealing the spotlight. Mixing metals, textures, and gemstone accents creates a dynamic and eye-catching look. Whether you prefer sleek cuffs or dainty bracelets, our collection offers endless options for layering to achieve a celebrity-inspired style.