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Amethyst

Amethyst was once considered to be as valuable as Ruby and Emerald; it regularly adorned jewellery worn by Royalty and religious figures. The Ancient Greeks believed wearing them would guard …

Aquamarine

Aquamarine is often heated to intensify the colour and remove green tones, resulting in the strong blue coloured stones most often seen in jewellery.  The colour is caused by tiny …

Bees

‘Once Summer days seemed swarming with bees. Not anymore… where have they gone? From a single bee bracelet to a big honeycomb cuff there is a spectrum as broad as nature in her infinite …

Bodkin

A Theo Fennell classic, the Bodkin collection pays homage to timeless glamour and design. The Bodkin Collection uses a subtle & sinuous design like a light frame to best show off …

Bombé Ring

The Bombé Ring has become an icon for Theo Fennell with no two the same. It was one of his first designs & is now a much coveted piece of …

Bud

Inspired by Japanese blossom, the Bud Collection is colourful yet subtle and beautifully elegant. It is richly symbolic of the ephemeral, fragile and transient nature of life due to the blossom’s …

Celestial

“Who doesn’t look up at the Celestial Sky at night and find it endlessly beguiling and overwhelming? Is there anything more inspirational than the beauty of the starry heavens or anything else that …

Chrysoberyl

Some Chrysoberyls exhibit an optical phenomenon known as the ‘cat’s eye effect’ whereby a streak of light bisects the stone, caused by reflection off a multitude of fine needle-like inclusions. …

Chrysophase

Is a kind of Chalcedony but with nickel in it that so often gives it a green colour. The shade can vary from eau-de-nil to an deep apple green but, whatever variation, often …

Citrine

Citrine is not naturally found in large quantities, so many of these stones are Amethyst or Smokey Quartz that have been heated. Sometimes Citrine and Amethyst will grow together in …

Crosses

For more than 21 years Theo Fennell’s signature Cross pendants have formed an integral part of his original, style-defining collections. As a testament to Theo’s unique approach to jewellery design, these beautiful pieces have …

Cufflinks

‘Cufflinks are one of the few ways a man in a suit can display his own individuality and style; so we like to design and make them to be as stylish as individual …

Diamond

Diamonds account for the vast majority of the value of all gemstones bought worldwide, some estimates put the figure as high as 90%.  A pure diamond is colourless and entirely …

Emerald

The most desirable Emeralds have a good strong colour, and a bright, lively appearance. Traditionally the finest quality are found in Colombia, in particular three key mines, Muzo, Coscuez and …

Empress

Our collection of exceptionally beautiful Empress pieces earned their name because of the Imperial Topazes we used in our original pieces. Now Empress is hand-crafted in our workshops, not just with the wonderfully broad …

Enamelling

Enamelling – this is a process of fusing powdered glass to metal by firing at high temperatures (750-850 degrees C). The resulting melt hardens to a smooth and durable finish. …

Engraving

This is where a pattern, design, writing or monogram is cut into metal using a sharp tool. Is the process of cutting into metal (though also stones and glass) to …

Floribunda

Theo Fennell’s collection pays tribute to nature’s four seasons and the flora, fauna and colours that make each one quite so distinctive and magical.  Each 18ct gold ring showcases a vibrantly …

Forevermark

Designs by Theo Fennell, Diamonds by Forevermark  “These stones have been moved from one eternal setting to another.” Theo. The Forevermark promise states that every diamond is ‘beautiful, rare and responsibly sourced’. Less …

Garnet

At Theo Fennell we use many of these beautiful stones including Spessartine which is a deep fiery reddish-orange in colour and Tsavorite which is a rich grass green. The name ‘Garnet’ …

Gemfields

Theo Fennell has an ongoing collaboration with Gemfields, the world’s leading coloured  gemstone producer.  Both the design and quality of raw materials is fundamental to the creative process and finished pieces.  By …

Gold

A soft, shiny, yellow metal which occurs as nuggets or grains. 100% pure gold is too soft to be practical for use in jewellery so other metals (alloys) are added …

Hallmarks

These are small impressions or marks which are struck into a piece of jewellery or silver by official Assay Offices to guarantee the quality or fineness of the metal used, …

Helidor – Yellow Beryl

The name Heliodor derives from the Greek words ‘Helios’ meaning Sun and ‘doron’ meaning ‘gift’.  This bright gem can range from a pale lemon yellow to a deep golden colour …

Heroes and Villans

Everyone’s Hero is someone else’s Villain. It is interesting that there is virtually no-one that is universally admired or universally loathed, though some come very close. We have chosen people that, …

Horseshoe Rings

The double-headed design parts from tradition to place stones between the fingers and gives a very different aesthetic to a ring. It also allows some asymmetry and adventure with some otherwise classic designs.

Jade

Jade is made up of millions of tiny crystals that lock together meaning it is very tough and suitable for use in jewellery although it is also used extensively for …

Jasper

Jasper is made up of thousands of tiny crystals tightly packed together to form a hard opaque mineral. As such it can contain lots of different ‘ingredients’ which give rise to …

Keys

Back in the early 80s, when our crosses, snakes and skulls were so popular, I felt a symbol that was nondenominational and had nothing but positive connotations. I was recovering from a minor …

Kunzite

Kunzite is currently found in Afghanistan, Brazil, Madagascar, and America. It was discovered relatively recently in 1902 in California after unidentified pink crystals were sent to the renowned gem specialist …

Labradorite

Labradorite is related to Moonstone and it occurs as a dark blue to grey opaque material or an almost colourless, yellowish or brownish material, both of which are admired for …

Lapis Lazuli

Lapis is actually classified as a rock because it is a combination of several different minerals, namely Lazurite (responsible for the fabulous colour) Calcite (the whitish streaks) and Pyrite (the …

Mammoth Ivory

Mammoth tusks are typically found deep frozen under the ice in Siberia where intrepid explorers spend the warmer months, which are obviously still bitterly cold, hunting these long-buried remains. These mammoths’ …

Mohs scale of hardness

Devised by the German mineralogist Friedrich Mohs (1773-1839), this scale is a practical method of comparing the different levels of hardness of different minerals  and gems.  It is measured in terms of the …

Moonstone

The best known and most desirable Moonstones are those with a near colourless, translucent body accompanied by a silvery blue sheen or reflection which appears to roam across the surface …

Morganite

These pretty stones, which are always on the pastel side and not strongly saturated, offer a soft and gentle colour to our palette. The colours are caused by tiny amounts of manganese in …

Mounter

This is the craftsman or woman, often referred to as a Goldsmith, that actually makes the body of a piece of jewellery. They fashion the piece for the setter to …

Obsidian

Is, essentially, naturally formed glass… but what a dramatic formation. It is thrown up by the eruption of a volcano and the sudden cooling of the lava. It is given further character by …

Onyx

Unlike the transparent varieties of Quartz such as amethyst and citrine, Onyx belongs to the group of translucent to opaque stones referred to as polycrystalline. It has been used since antiquity, …

Opal

Opal is formed of tiny spheres of silica and the colours seen in any particular example depend upon the size and arrangement of these spheres.  They have a relatively high water content, up …

Opening Rings

Part of the great traditions of jewellery, opening rings fell out of favour for some time, mainly because they are incredibly difficult to make really well. Fortunately we have some of the finest …

Palm

Inspired by the shadows of dappled light falling through palm leaves, the Palm Collection combines beautiful modern design with traditional craftsmanship to create a contemporary and unique style which is a …

Palmier

Introducing Palmier… masterfully handmade by our talented team of craftsmen in our Fulham Road Workshop. Intricately woven from a continuous 18ct Yellow Gold flat ribbon wire, this is the finest example of the chain maker’s …

Paraiba Tourmaline

It was only discovered in the late 1980s and named after the state in Brazil where it was originally found. Clean stones of a good size and colour are rare …

Pavlova

Our Pavlova collection is named after the great fin de siècle Russian Ballerina, the first superstar dancer. She mixed different disciplines and styles in a supremely original way. Our use of such surprising combinations …

Pearls

Pearls can be saltwater or freshwater and produced entirely by a natural process or they can also be cultured whereby the growth is artificially initiated. They are formed in molluscs …

Peridot

The word peridot comes from the Arabic ‘faridat’, which means ‘gem.’ Most peridot formed deep inside the earth and found its way to the surface via volcanic action, as indeed did …

Pertified Wood

It occurs when trees fall and get buried by layers and layers of earth and sediment which compact down and seal the timber off from oxygen thereby protecting it from …

Phi

Talismanic and beautiful in its simplicity, Phi is the ancient Greek symbol of the golden ratio, the sign of harmony in all things. Jewellery emotionally charged and to last many lifetimes- this …

Platinum

A dense, malleable grey-white metal which is one of the rarest with only a few tonnes mined each year, its rarity makes it highly valuable and its hardness and tarnish …

Polishing

Most jewellery and silverware is pre-polished to give it an evenness on which the last few touches can be carried out, say setting for jewels and engraving for silver, and …

Reveal

Theo Fennell’s exquisite Reveal rings are typically elegant and beautiful. The Diamond rings are set in a unique and subtle way, allowing light to shine through each and every facet of …

Rock Crystal

Rock crystal has been used in jewellery for thousands of years, some of the earliest beads and amulets are made of this gem material. It was easy enough to carve and polish …

Rubellite

Rubellite is a name given to members of the tourmaline family that have a really distinctive red or bright pink colour. There are many Tourmalines in the red and violet spectrum …

Ruby

Ruby can range from brownish-red through pinkish-red to the ideal bright, deep red of the most valuable and sought after stones. The colour is caused by the presence of chromium. …

Sapphire Blue

We use a variety of colours of Sapphire, including pink, yellow, green and purple along with the most popular and best known colour – blue. The most highly valued blue …

Sapphire Pink

We use a variety of colours of Sapphire, including pink, yellow, green and purple along with the most popular and best known colour – blue. The most highly valued blue …

Sapphire Yellow

We use a variety of colours of Sapphire, including pink, yellow, green and purple along with the most popular and best known colour – blue. The most highly valued blue …

Setter

This is the craftsman who actually sets the stones in to jewellery. Some of his vocabulary are:  Pavé – a style of setting whereby many small stones are all set close …

Silver

Pure Silver has a brilliant white metallic lustre. Ductile and malleable, Silver has the highest electrical and thermal conductivity of all metals. Marginally harder than Gold, Silver is less expensive …

Silversmithing

Silver comes into its own when used by silversmiths, some of whom have attained the reputation of great artists in their own right. It is still one of the great …

Skulls

The Skull is one of the most ancient symbols in all of jewellery and one that has been used by Theo since the seventies (can it be?!). The techniques, materials and brilliant craftsmen …

Slinky

Slinky, figure-hugging strands that cling to the body like no other diamond jewellery. The trick is in the design and the movement between each link. Draped around necks and wrists, down …

Spangle

Theo’s incredibly popular Spangle collection features Sapphires, Rubies and Blue Diamonds. Make an elegant and understated highlighted with the Spangle collection. A simple, stylish collection of Gold rings bands lightly dusted with …

Spinel

Historically, Spinels were frequently misidentified as rubies, one of the best known examples of this can be seen in the Crown Jewels where the ‘Black Prince’s Ruby’ is actually a …

Stone Engraving

Many stones can be engraved by cutting a pattern into the surface of the stone, cutting away stone to leave an image standing proud or cutting deep into the reverse …

Tanzanite

Tanzanite was first discovered relatively recently in 1967 when Masai tribesmen found a cluster of crystals in the Merelani Hills in north east Tanzania near Mount Kilimanjaro, an area that …

Topaz

Colourless topaz is very common and it is this material that is typically treated to make the well known blue colour that is widely seen in jewellery.  Most Topaz is …

Tourmaline

The chemical make up of tourmaline crystals is highly complex which allows for a huge range of colours, shades and hues to develop. Some are known by particular names, e.g. …

Tryst

Tryst is an old fashioned way for modern lovers to express their feelings; it has been beautifully crafted from a wide choice of the most perfect materials and symbols that …

Turquoise

Turquoise has long been used for jewellery, being highly valued by ancient cultures including the Egyptians and South Americans. Typically it was carved into beads and cabochons but was also …

Waterlily

The Waterlily setting is a misleadingly simple but very subtle design that reflects the many graceful petals of its namesake. The mount manages to show off a stone to it best advantage yet can …

Whip

The new Whip collection was inspired by the whipping that attaches the head of a polo stick to its shaft and binds very fine rattan chair legs. It has a wonderful, crisp and …

Zircon

Zircon is not one of the hardest gems and has a tendency towards brittleness, so care must be taken in the cutting, setting, wearing and cleaning of these gems.  Colourless stones …
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