Two cabochon-cut, catseye alexandrites of Brazilian origin set as the centerpiece of platinum rings appeared at Christies Hong Kong Magnificent Jewels...

What would be the approximate valuation of a Star Blue Sapphire, origin from Sri Lanka and a size of 510 carat? Would appreciate your inputs.

Thanks Joan, John and Mary for taking us to the next logical topic in the discussion - the extremely rare chatoyant alexandrites - with two phenomenal...

The images uploaded by John speak for themselves. The color, clarity and chatoyancy of the alexandrite, particularly under incandescent light is astou...

One of the finest catseye alexandrites with an extraordinary color change and prominent chatoyancy, ever to appear at an auction, was the 23.19-carat,...

What about the rare alexandrites showing chatoyancy - the catseye alexandrites - which have been left out of the discussion so far ?The following imag...

The exquisite design of the pink sapphire and diamond ring is characteristic of Oscar Heyman & Bros. the third generation American jeweler, with a...

An exquisitely designed ring by Oscar Heyman & Brothers centered around an 18-carat, cushion-cut, Ceylon pink sapphire, within an octagonal-shaped...

Eureka !!! The 17.16-carat, oval-cut Ceylon pink sapphire appears again at a Sotheby's Magnificent Jewels Sale six months later in April 2008, not at ...

Thanks Peter for your updates.The price-per-carat values of the Ceylon pink sapphires highlighted so far are as follows :- 1) 49.04-carat, cushion-cu...

Two more stunning Ceylon pink sapphires appeared at Sotheby's auctions and made a significant impact. One pink sapphire weighing 17.16 carats, with a ...

Another Ceylon pink sapphire weighing 11.90 carats with a perfect oval-cut, good clarity and characteristic purplish-pink color of Ceylon pink sapphir...

Thanks afrojack for the update. This is indeed a stunning Ceylon ruby, sorry pink sapphire, with a perfect oval-cut and good clarity and the character...

Another stunning oval-cut Ceylon pink sapphire weighing 19.38 carats, mounted as the centerpiece of a platinum ring within a pear-shaped diamond surro...

Dear Rashid, this is exactly what has baffled gemstone connoisseurs like you and me, as well as those in the trade and ordinary laymen, ever since the...