Our Stones

DIAMONDS

The name Diamond is derived from the Greek word “Adamas” which means unconquerable. The Diamond is composed of pure carbon that has been crystallised under enormous heat and pressure from deep within the earth. Diamond is the hardest known naturally occurring substance known to man. It has a hardness of 10 on the MOHS Table of Hardness.

Diamond is mostly found transparent and colourless, however, it is found in various yellows, pinks, cognac, browns, blues, and black. Prior to the mid-nineteenth century, diamonds were worn only by men. Diamonds were once considered a talisman against phantoms and nightmares and were also supposed to give courage and virtue to soldiers in battle.

We have the largest selection of GIA certified diamonds in the UK. We also stock Cushions, Marquise, Oval and Heart shapes with no Bow Ties. Come in and view a selection of colours and purities from all over the world.

DIAMONDS CUTS AND SHAPES

Round
Round
Princess
Princess
Emerald
Emerald
Cushion
Cushion
Asscher
Asscher
Pear
Pear
Oval
Oval
Heart
Heart
Radiant
Radiant
Marquise
Marquise
Baguette
Baguette
Trillion
Trillion

Book an appointment at Simon Lewis, specialists in Diamond rings, engagement rings, wedding rings, bespoke jewellery and more; we are located in the prestigious Hatton Garden, London’s diamond district.

RUBIES

Ruby, like Sapphire, is a variety of the mineral, corundum. Most Rubies are mined in Thailand, Burma, Sri Lanka and Africa. All locations produce gemstones of varying sizes, qualities and colours of red.

Ruby is one of the most durable of all gemstones. To ensure long-lasting enjoyment of your Ruby jewellery protect it from hard blows and scratches.

Come in and view a selection of size and purities from all over the world.

rubies-gemstone
Sapphires

SAPPHIRES

Sapphire, like Ruby, is a variety of the mineral corundum. Beauty is only one reason to chose Sapphire, another is durability.

Though one of nature’s most durable gemstones, protect your Sapphire from hard blows and scratches by caring for it as you would a fine garment. With proper care, your Sapphire jewellery can be passed through the generations.

Come in and view a selection of colours and purities from all over the world.

EMERALDS

Emerald, like Aquamarine, is a variety of the mineral Beryl. Most Emeralds are mined in Brazil, Colombia, and Zambia. Each locality lends variation in colour and clarity.

Remove your Emerald before engaging in activities such as sports, housework, and gardening, as Emerald is sensitive to hard knocks and scratches. Never use an ultrasonic cleaner or subject your Emerald to harsh detergents.

Come in and view a selection of colours and purities from all over the world.

Emeralds
coloured-diamonds

FANCY COLOURED DIAMONDS

Diamond has remarkable optical characteristics. Because of its extremely rigid lattice, it can be contaminated by very few types of impurities, such as boron and nitrogen. Combined with wide transparency, this results in the clear, colourless appearance of most natural diamonds. Small amounts of defects or impurities (about one per million of lattice atoms) colour 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 colours), which results in its characteristic luster. Excellent optical and mechanical properties, combined with efficient marketing, make diamond the most popular gemstone.

About the Project
About the Diamond