Set with an octagonal step-cut sapphire weighing 12.07 carats, flanked by two cushion-shaped sapphire weighing 2.82 and 2.34 carats, mounted in platinum. Ring size： 6¼

AGL numbered CS 62202 and CS 1078715, dated 20 February 2015 and 04 October 2016 respectively, stating the sapphires are 12.07 and 2.34 carats, natural, Blue colour, Kashmiri origin, no gemological evidence of heat and clarity enhancement；
Gübelin numbered 15025259, 16050137 and 16052022 , dated 15 February 2015, 1 and 7 June 2016, stating the sapphires are 12.07, 2.34 and 2.82 carats, natural, Blue colour, Kashmiri origin, no indications of heating；
SSEF numbered 79136 and 86605, 10 March 2015 and 27 June 2016 respectively, stating the sapphires are 12.075 and 2.820 carat, natural, Blue of medium strong saturation, Kashmiri origin, no indications of heating.

Although some Burmese and Ceylonese sapphires are famous, only the Kashmir Sapphire could be named as “King of the Sapphire World”. Kashmir is located in the northwestern corner of the Indian subcontinent, in a valley between India and Pakistan. With an average altitude of over four thousand meters, Kashmir is cold all year round. The mining work is hard in Kashmir due to short annual production time and frequent wars. These make the gem hard to come by.
Since the mines were depleted in such a short period of time, the scarcity of Kashmir sapphires has made these stones tremendously sought-after by gem connoisseur all around the world.
Kashmir sapphires pronouncedly display distinct blue colour and the signature ‘velvety’ texture caused by the inclusion of exsolved rutile silk. Under magnification, the exsolved rutile of Kashmir sapphires differs from that of Burma and Sri Lankan stones in terms of the size of the crystals. Many appear as tiny dots in snowflake patterns, and magnification of 40x or more is often required to resolve individual crystals. Due to its extremely fine nature, Kashmir rutile provides subtle light scattering without materially affecting transparency, giving these gems their velvety appearance. Sapphires from Sri Lanka, Thailand （especially Kanchanaburi） and Pailin may also exhibit a certain milkiness, making confusion a real possibility. The haziness in Kashmir stones, however, is extremely fine in nature, not enough to seriously degrade the clarity, but just enough to impart the distinctive velvety luster to the stones.
With the source is non-existent, these Kashmir sapphire are almost never seen except in the auction market. Most of the Kashmir sapphires that exist in auction market were discovered more than 100 years ago. As these superlative sapphires are unrivalled among sapphires around the world, the demand for the gem far exceeds the supply.

Price estimate:
HKD: 7, 200, 000 - 8, 600, 000
USD: 923, 100 - 1, 102, 600

Auction Result:
HKD: 7,567,500