Extremely valuable and coveted, a totally flawless diamond is very rare. According to GARRARD, the world's oldest jeweller, 
who designed the engagement rings for Princess Diana and many in the Royal Family, a flawless diamond is often invisible to the naked eye. Flawlessness is determined by the size, quantity, color and position of inclusions which are studied with a 10X jeweller’s loupe to determine a diamond’s clarity.
Less than one percent of gem quality diamonds ever found have no inclusions and can be called flawless or internally flawless, graded FL or IF. The fewer and smaller the inclusions, the rarer and more valuable the diamond. Very pronounced inclusions, which can be seen without the aid of a magnifying glass, are graded Pique 1 to Pique 3. Except for antique or period pieces, GARRARD only sell diamonds that are graded from flawless to VS2.
Since 1843, when Queen Victoria bestowed the honour of Crown Jeweller on the company, GARRARD has served six successive monarchs. Their craftsmen and jewellery experts have created and maintained the most potent symbols of the British Royal Family, the “Crown Jewels”, the most important jewels in the United Kingdom. The Sovereign’s Sceptre with the Cross was partly remade by Garrard in 1910 to accommodate the largest and finest cut diamond in the world, the Cullinan I, weighing 530 carats.
who designed the engagement rings for Princess Diana and many in the Royal Family, a flawless diamond is often invisible to the naked eye. Flawlessness is determined by the size, quantity, color and position of inclusions which are studied with a 10X jeweller’s loupe to determine a diamond’s clarity.Less than one percent of gem quality diamonds ever found have no inclusions and can be called flawless or internally flawless, graded FL or IF. The fewer and smaller the inclusions, the rarer and more valuable the diamond. Very pronounced inclusions, which can be seen without the aid of a magnifying glass, are graded Pique 1 to Pique 3. Except for antique or period pieces, GARRARD only sell diamonds that are graded from flawless to VS2.
Since 1843, when Queen Victoria bestowed the honour of Crown Jeweller on the company, GARRARD has served six successive monarchs. Their craftsmen and jewellery experts have created and maintained the most potent symbols of the British Royal Family, the “Crown Jewels”, the most important jewels in the United Kingdom. The Sovereign’s Sceptre with the Cross was partly remade by Garrard in 1910 to accommodate the largest and finest cut diamond in the world, the Cullinan I, weighing 530 carats.