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Diamonds & Gemstones

Welcome to the world of Gemstones at Owen & Robinson the Jewellers. Our vast array of gemstones come from all over the world and are sourced directly from nature by our expert gem buyers, ensuring the quality of every stone.

We inspect and polish each one before setting it into precious metal to maximise the beauty of each individual stone.

So whether you’re looking for something subtle, or a statement piece, our passion for gemstones and everything about them, combined with our expert knowledge from the staff here at Owen & Robinson means you are sure to discover the perfect piece.

Alexandrite

Green in sunlight. Red in lamplight. Colour-changing alexandrite is nature’s magic trick. It’s the colour-change variety of the mineral, chrysoberyl. Bluish-green in daylight, purplish-red under incandescent light; hard and durable. Top-quality examples are rare and valuable. Below you will see this stone in its natural and cut form.

Alexandrite Cut
Alexandrite Uncut

Amber

Amber is nature’s time capsule. This fossilised tree resin contains remnants of life on earth millions of years ago. Fossilised resin, colour of the burnished sun – orange or golden brown. Amber might trap and preserve ancient life, including insects, leaves, and even scorpions and occasionally lizards. Below you will see this stone in its natural and cut form.

Amber Cut
Amber Uncut

Amethyst

The essence of the colour purple, amethyst is beautiful enough for crown jewels yet affordable enough for engagement rings. Purple variety of the mineral quartz, often forms large, six-sided crystals. Fine velvety coloured gems come from African and South American mines. In demand for jewellery at all price points. Below you will see this stone in its natural and cut form.

Amethyest Cut
Amethyst Uncut

Ametrine

This transparent quartz has colours of both amethyst and citrine, and is called ametrine or amethyst-citrine. Below you will see this stone in its natural and cut form.

Aquamarine

Named after seawater, aquamarine’s fresh watery hue is like a cool plunge into a refreshing pool. Blue to slightly greenish-blue variety of the mineral beryl. Crystals are sometimes big enough to cut fashioned gems of more than 100 carats. Well-formed crystals might make superb mineral specimens. Below you will see this stone in its natural and cut form.

Aquamarine Cut
Aquamarine Uncut

Citrine

Citrine is the transparent, pale yellow to brownish orange variety of quartz. Citrine’s colour comes from traces of iron. It’s perhaps the most popular and frequently purchased yellow gemstone and an attractive alternative to topaz as well as to yellow sapphire. Below you will see this stone in its natural and cut form.

Citrine Cut
Citrine Uncut

Diamond

Diamonds are among nature’s most precious and beautiful creations. This hardest gem of all is made of just one element: carbon. It’s valued for its colourless nature and purity. Most diamonds are primeval – over a billion years old – and are formed deep within the earth. Below you will see this stone in its natural and cut form.

Diamond Cut
Diamond Uncut

Fancy Colour Diamond

Dazzling brilliance. Captivating colour. The planet’s most valued gems are fancy colour diamonds. Fine colour diamonds are the most rare and costly of all gemstones. Their ranks include the world’s most famous jewel – the Hope – and the most expensive gem ever auctioned – the Graff Pink. Below you will see this stone in its natural and cut form.

Yellow Diamond Cut
Yellow Diamond Uncut

Emerald

Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine. The most valued variety of beryl, emerald was once cherished by Spanish conquistadors, Inca kings, Moguls and Pharaohs. Today, fine gems come from Africa, South America and Central Asia. Below you will see this stone in its natural and cut form.

Emerald Cut
Emerald Uncut

Garnet

Garnets are a set of closely related minerals that form a group with gemstones in almost every colour. The garnet group of related mineral species offers gems of every hue, including fiery red pyrope, vibrant orange spessartine and rare intense-green varieties of grossular and andradite. Below you will see this stone in its natural and cut form.

Garnet Cut
Garnet Uncut

Lolite

According to legend, Vikings used iolite slices to reduce glare when checking the sun’s position. Known in the jewellery trade as iolite, this mineral is known as cordierite to geologists and mineralogists. It was named after French mineralogist Pierre Cordier. Below you will see this stone in its natural and cut form.

Lolite Cut
Lolite Uncut

Jade

Jade is actually two separate minerals: nephrite and jadeite. In China, jade is the "stone of heaven". Prized by civilisations from ancient China to the Aztecs and Mayans of Central America, jade is crafted into objects of stunning artistry. Below you will see this stone in its natural and cut form.

Jade Cut
Jade Uncut

Kunzite

Collectors love kunzite for its colour range, from delicate pastel pink to intense violetish purple. Trace amounts of manganese give this pink to violet variety of spodumene its feminine glow. A relative newcomer to the gemstone stage, kunzite was only confirmed as a unique variety of spodumene in the early part of the twentieth century. Below you will see this stone in its natural and cut form.

Kunzite Cut
Kunzite Uncut

Lapis Lazuli

Lapis is a beautiful rock; an aggregate of several minerals, mainly lazurite, calcite and pyrite. Lapis lazuli is treasured for its beautiful deep blue colour. Afghanistan is considered the source of the best-quality lapis.  

Lapis Cut
Lapis Uncut

Moonstone

A ghostly sheen moves under the surface of this feldspar, like moonlight glowing in water. Feldspar is prized for its billowy blue adularescence, caused by light scattering from an intergrowth of microscopic, alternating layers. It is the favoured gem of many Art Nouveau jewellery designers. Below you will see this stone in its natural and cut form.

Moonstone Cut
Moonstone Uncut

Morganite

Morganite is the pink to orange-pink variety of beryl, a mineral that includes emerald and aquamarine. Like its cousin’s emerald and aquamarine, morganite is a variety of the beryl mineral species. This gem gets its subtle blush when a trace amount of manganese makes its way into morganite’s crystal structure. Below you will see this stone in its natural and cut form.

Morganite Cut
Morganite Uncut

Opal

Fireworks. Jellyfish. Galaxies. Lightning. Opal’s shifting play of kaleidoscopic colours is unlike any other gem. Opal’s microscopic arrays of stacked silica spheres diffract light into a blaze of flashing colours. An opal’s colour range and pattern help determine its value. Below you will see this stone in its natural and cut form.

Opal Cut
Opal Uncut

Pearl

Perfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic. Produced in the bodies of marine and freshwater molluscs naturally or cultured by people with great care. Lustrous, smooth, subtly coloured pearls are jewellery staples, especially when worn as strands. Below you will see this stone in its natural form only.

Pearl

Peridot

Found in lava, meteorites and deep in the earth’s mantle, yellow-green peridot is the extreme gem Yellow-green gem variety of the mineral olivine. Found as nodules in volcanic rock, occasionally as crystals lining veins in mountains of Myanmar and Pakistan, and occasionally inside meteorites. Below you will see this stone in its natural and cut form.

Peridot Cut
Peridot Uncut

Rose Quartz

Rose quartz is a quartz variety that gets its name from its delicate pink colour. Microscopic mineral inclusions cause the pink colour and translucence of rose quartz. Well shaped, transparent pink quartz crystals are rare. Below you will see this stone in its natural and cut form.

Rose Quartz Cut
Rose Quartz Uncut

Ruby

Ruby is the most valuable variety of the corundum mineral species, which also includes sapphire. Traces of chromium give this red variety of the mineral corundum its rich colour. Long-valued by humans from many cultures. In ancient Sanskrit, ruby was called ratnaraj, or “king of precious stones”. Below you will see this stone in its natural and cut form.

Ruby Cut
Ruby Uncut

Sapphre

The name “sapphire” can also apply to any corundum that’s not ruby, another corundum variety. Depending on their trace element content, sapphire varieties of the mineral corundum might be blue, yellow, green, orange, pink, purple or even show a six-rayed star if cut as a cabochon. Below you will see this stone in its natural and cut form.

Sapphire Cut
Sapphire Uncut

Spinel

The Black Prince’s Ruby. The Timur Ruby. For centuries, spinel, the great imposter, masqueraded as ruby in Europe’s crown jewels. Although frequently confused with ruby, spinel stands on its own merits. Available in a striking array of colours, its long history includes many famous large spinels still in existence. Below you will see this stone in its natural and cut form.

Spinel Cut
Spinel Uncut

Sunstone

Sunstone’s phenomenal varieties show a distinct and lively glitter called aventurescence. Sunstone, a member of the feldspar group, can be an orthoclase feldspar or a plagioclase feldspar, depending on chemistry. Both can show aventurescence. “Sunstone” applies to the gem’s appearance. Below you will see this stone in its natural and cut form.

Sunstone Cut
Sunstone Uncut

Tanzanite

Lush blue velvet. Rich royal purple. Exotic tanzanite is found in only one place on earth, near majestic Kilimanjaro. Named for Tanzania, the country where it was discovered in 1967, tanzanite is the blue-to-violet or purple variety of the mineral zoisite. It’s become one of the most popular coloured gemstones. Below you will see this stone in its natural and cut form.

Tanzanite Cut
Tanzanite Uncut

Topaz

Honey yellow. Fiery orange. Cyclamen pink. Icy blue. In warm or cool tones, topaz is a lustrous and brilliant gem. Colourless topaz treated to blue is a mass-market gem. Fine pink-to-red, purple or orange gems are unique pieces. Top sources include Ouro Prêto, Brazil, and Russia's Ural Mountains. Below you will see this stone in its natural and cut form.

Topaz Cut
Topaz Uncut

Tourmaline

Tourmalines have a variety of exciting colours with one of the widest colour ranges of any gem. This stone comes in many colours, including the remarkable intense violet-to-blue gems particular to Paraíba, Brazil, and similar blues from Africa. It is a favourite of mineral collectors. Below you will see this stone in its natural and cut form.

Tourmaline Cut
Tourmaline Uncut

Turquoise

Azure sky, robin’s egg blue: vivid shades of turquoise define the colour that’s named after this gem. Ancient peoples from Egypt to Mesoamerica and China treasured this vivid blue gem. It’s a rare phosphate of copper that only forms in the earth’s most dry and barren regions. Below you will see this stone in its natural and cut form.

Turquoise Cut
Turquoise Uncut

Zircon

Zircon is a colourful gem with high refraction and fire that’s unfairly confused with cubic zirconia. Optical properties make it bright and lustrous. Best known for its brilliant blue hues, it also comes in warm autumnal yellows and reddish browns, as well as red and green hues. Below you will see this stone in its natural and cut form.

Zircon Cut
Zircon Uncut