List of largest rough diamonds

 Blue jewel is a sort of precious stone which shows all of the equivalent inborn

properties of the mineral besides with the extra component of blue tone in

the stone is hued blue by following measures of boron that taint the

glasslike cross-section structure blue precious stones have a place with a subcategory of

precious stones called extravagant hued jewels the conventional name for jewels that

display extreme shading blue jewels range in grade from faultless to included

similarly as on account of white jewels the very four essential boundaries that

oversee the evaluating of all gemstones are used to grade blue jewels the four C's

of connoisseurship shading clearness cut and carat weight tone is thought of as the

outright most significant model in evaluating a blue jewel and deciding it is worth

anyway the most important of blue jewels likewise show the most elevated

lucidity grades there is no known blue jewel with an immaculate F lucidity reviewing albeit a few are

realized which are evaluated inside faultless if one of the earliest

referenced blue precious stones is the Hope Precious stone a 45 point five two

carat extravagant dull grayish-blue which is accepted to have been found in

India however whose initially recorded presence was in 1666 by French jewel shippers and

Baptists Tavernier its last proprietor was renowned gem specialist Harry Winston before he

given it to the Smithsonian National Exhibition hall of Natural History in Washington

DC dismal white jewels have stayed the most famous kind of precious stone during that time 

however the presence of this blue precious stone so lengthy back insists the truth of the interest

for extravagant shading precious stones throughout the long term shading in gemology

shading is partitioned into three parts tone immersion and tone blue jewels happen in tones going from

green blue to dark blue with the essential who essentially being blue-green and dim

are the typical auxiliary shades that can be found in blue jewels blue precious stones

are viewed as generally lovely and important when there is no optional

shading present but instead our unadulterated blue shading anyway an unadulterated blue jewel of

the light tone might be thought of as less important than a green-blue or dark blue

jewel whose tone is more striking the normal for shading is exceptionally intricate

in blue precious stones therefore most unadulterated blue precious stones are type IIb meaning

they contain either not many or a complete absence of nitrogen debasements

type Pia blue stones contain an auxiliary tone and get their shading from the

presence of hydrogen clearness likewise with all precious stones the loupe standard is utilized to

grade clearness this implies that the considerations are decided to given the

the appearance of the precious stone under 10x amplification and not how it would

appear to the unaided eye not at all like in boring jewels the lucidity in blue jewels has little impact on

the Diamonds esteem the exemption is when there is a particularly high lucidity on a

the distinctively hued jewel in this case the lucidity can add room and is esteem medicines

 blue jewels are as it were thought about uncommon and significant assuming that they are

regular the meaning of a characteristic blue precious stone is a blue jewel that was mined

with its blue shading currently present since the 1950s numerous strategies have been

created to change precious stones appearance including adding shading to a drab stone

 these are thought of improved jewels and don't have the the worth or resale worth of

 a characteristic blue precious stone upgraded blue jewels are not purchased with the goal 

of speculation or on the other hand, possible resale engineered blue

precious stones have likewise been made utilizing the HP HT technique blue jewel mines the

The earliest recorded blue jewel the Hope Jewel was found in India in the shading mine

 in the Gunter locale of Andhra - which at the time was important for the

The Golconda Kingdom in the seventeenth-century speck anyway, blue precious stones

 have likewise been found in the Cullinan mine in South Africa and the Golconda locale a couple

blue jewels have been found in the Argyle mine in Western Australia as well and are presented 

at their yearly Argyle delicate when they are observed it is felt that blue precious stones

not at all like most different precious stones are framed in the lower some portion of Earth's mantle and

that the boron making their blue tone begins from a snake this evening conveyed

down to the mantle by subducting sea structural plates blue precious stones in well known

culture besides the legendary revile of the Hope Diamond blue jewels don't

however, address an enormous piece of the world culture anyway starting at 2015 blue precious stones

have turned into the most sought-after diamonds at closeout, this was actuated by the

offer of the 9.75 carats extravagant clear blue Zowie jewel to Hong Kong very rich person

joseph who got it for and named it after his young girl Zoey an the human person is known as blue

jewel is an individual from the incredible precious stone expert in the TV show Steven universe