Tuesday, 30 October 2018

Pumpkin Gemstones


22.45 ct. spessartine garnet. Omi Privé.
Charlie Brown gets a bag full of rocks this time of year. Orange is the color of autumn.
Lydia Courteille “pumpkin” ring
5.54-carat, fancy vivid orange, cushion-cut Pumpkin Diamond

Pumpkin Tourmaline

“The Orange” 14.82-carats. Largest fancy vivid orange diamond known.
Padparadscha Sapphire

Monday, 29 October 2018

Star Ruby - Star Sapphire


Other gemstones that may display asterism are rose quartz, garnet, diopside, moonstone, spinel and opal.
Star rubies and star sapphires display a six-ray star that seems to glide across the surface of the gem when moved. This six-ray star is caused due to an optical phenomena known as "asterism".

The term is derived from the Greek word "aster", which means star. Fine star rubies and sapphire come mainly from Mogok and Sri Lanka. The best stones will have just enough silk to create the star effect, but not so much as to harm the transparency and color. These stones are rare and valuable.
Black Star Sapphires with golden stars are one of the most fascinating forms of sapphire. The most valuable of the golden-star black stars come from Chanthaburi, Thailand.

Black star sapphires differ from other colours of star sapphires because the star is formed not due to rutile silk but due to hematite plates.
The Delong Star Ruby resides in the Natural History Museum in New York. Weighing 100.32 carats, it is a deep purplish red, from Burma, it has an extremely sharp 6-rayed star effect.

The Rosser Reeves Star Ruby; a fine-quality star ruby of 138.70 carats from Sri Lanka.
Star of Asia A round six-ray star sapphire weighing 329.7 carats. The stone's origin is Burma, and it's also part of the Smithsonian Museum's collection.

Weighing 27.62 carats, the Star of Bharany Ruby is one of the world’s finest star rubies.
A star ruby is considered potent protection against magic. Star rubies were worn by knights in battle to protect themselves from the enemy. Tales in Karnataka (India) say that if it is worn as a visible pendant or as a headgear then anyone who faces you as an enemy loses half their valour.

The power of star ruby is said to be the highest during full moon.



Saturday, 27 October 2018

Lux Watch 4 - diamond-encrusted Apple watch

A new, diamond-encrusted Apple watch has arrived to make those luxury watch dreams come true — if you can afford it. From Brikk comes the Lux Watch 4, with prices starting at a rock bottom $28,995. The watches have the full functionality of the Apple watch and are available in yellow, rose, and white gold.

It takes 34 people up to 80 hours to make one.
A gold bracelet instead of a leather strap is going to cost you, the price rises to $59k. Going 'fully encrusted'? No problem. The Lux Watch 4 Omni ranges in price from $69k to $279k.

Thursday, 25 October 2018

Alrosa finds 28.5 carat fancy intense yellow diamond

ALROSA has extracted a 28.59-carat rough yellow diamond at the Ebelyakh placer deposit in Russia. The stone is fancy intense yellow. It is the largest yellow rough diamond mined by ALROSA this year.

In 2017 ALROSA extracted a 27.85-carat pure pink diamond – the largest pink stone in it's history, and a 34.1-carat vivid yellow diamond.

Tuesday, 23 October 2018

Cristiano Ronaldo shows off £1.2m diamond-encrusted watch

Ronaldo's latest accessory is finished with 424 white diamonds. It's an upgrade for the Portuguese star after he has previously been spotted with a £100,000 Jacob and Company limited edition H24 on his wrist, which had a total diamond weight of 15.25 carats. Ronaldo became a brand ambassador for Jacob & Co in 2013.

Ronaldo's statement piece caught the eye of the media as he spoke about a rape allegation that is currently hanging over him.

Monday, 22 October 2018

Coloured Diamonds

The most valuable fancy colours are those with a single colour. They are difficult to find because they often have secondary colours. Grading a fancy colour is rigorous because they don't have the same number of points on a colour scale.

When a fancy-coloured diamond is under evaluation, the GIA focuses on three areas:Hue - The colour (e.g. purplish-pink), Tone - How light or dark the colour is, and Strength/Saturation.
Less than one in 10,000 gem-quality diamonds is classified as ‘fancy-coloured’. The various colours are formed under unique conditions involving specific trace elements, radiation and/or plastic deformation of the crystal structure.
Fancy yellow and browns are more abundant. Rarest is the red diamond. Classified according to their hue, tone and saturation, the value of coloured stones generally increases with the strength and purity of the colour. Even very slight colour differences can have a profound effect on price.

Sunday, 21 October 2018

Blue Garnets

Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. All garnets possess similar physical properties and crystal forms, but differ in chemical composition. The different species are pyrope, almandine, spessartine, grossular, uvarovite and andradite.

Garnet is available in a plethora of colours and is found around the world. Rarest and most valuable of all are blue garnets. They were discovered in 1998 in Bekily, Southern Madagascar. They are actually colour change garnets, appearing blue under fluorescent light changing to reddish-purple under incandescent light. The color change is pronounced and these rare garnets have become highly sought after by collectors.
Color change garnets are due in part to varying concentrations of vanadium and chromium. The blue-green to purple color change garnets have relatively high concentrations of vanadium and low concentrations of chromium.

Very fine, gem quality blue garnets over 10 carats are scarce and valuable.

Tuesday, 16 October 2018

Uber Bling Watches

High-jewelry watches represent the haute couture of horology. Extravagant and always exceedingly expensive, these divas elicit oohs and ahs by fusing two luxury worlds with abandon: They’re statement pieces that do more than just look fabulous — they actually tell the time, too.
Bvlgari


Graff

Chopard
Jaeger-LeCoultre Dior
Van Cleef & Arpels
Jacob & Co
FabergéCartier