2010/11/29

CEYLON PINK SAPPHIRE AND DIAMOND RING


Ceylon pink sapphire may have many pretty shades of pink, tending towards the lighter side and some with tinges of violet and purple. Large sizes are rare, and fine examples truly mark the borderline between pink sapphire and ruby.

This pink sapphire & diamond ring was auctioned at Christies, New York, Rockefeller Plaza. The sapphire set to the circular-cut diamond prongs, gallery and half-hoop, mounted in platinum.

The pink sapphire weighs approximately 17.16 carats, Sri Lanka origin, and there are the lab reports accompanied from the AGTA Gemological Testing Center and the American Gemological Laboratories stating that the pink sapphire is natural and no indications of heating. The auctin
price realized of $338,500.

Burma Star Ruby & Diamond Ring


Star ruby is a phenomenon gemstone. Ruby may display stars. Fine star rubies display sharp six-rayed stars well-centered in the middle of the cabochon and you may see even twelve-rayed stars depends on light sources. All legs of the star should be intact and smooth. Just having a good star does not make a stone valuable. The best pieces have sharp stars against an intense crimson body color. Lesser stones may have sharp stars, but the body color is too light or grayish. Many star rubies are also heated in the presence of a flux to heal their fractures. Untreated stones fetch premium prices.

The star ruby cabochon accented with single and brilliant-cut, baguette and triangular diamond decoration, size 48, numbered ,from Sotheby's auction.

2010/11/27

Kunzite & Diamond Jewelry


Kunzite is a pink to lilac variety of spodumene. Kunzite has hardness of 6.5-7. Kunzite frequently irradiated to enhance the color and some has been heated. Natural pink kunzite is very attractive. Due to kunzite's cleavage & splintery fracture, it is considered a real gem cutters challenge. However, its lovely
pink color makes kunzite a desirable gemstone.

Here we have the result of kunzite jewelry at Sotheby's Hong Kong auction. The ring centring on an oval kunzite weighing approximately 14.50 carats, to a stylised mount set with brilliant-cut diamonds; the pair of ear clips each simply set with an oval kunzite altogether weighing approximately 13.00 carats, clip and post fittings; and a pendant suspending to the front with a pear-shaped kunzite weighing approximately 22.00 carats, supported by a stylised surmount set with marquise-shaped and brilliant-cut diamonds, decorated by circular-cut kunzites, accompanied by a link chain, adjustable length approximately 380 or 430mm; mounted in 18 karat white gold.

2010/11/25

Impressive 9.46 carats Burmese Spinel


Envy for the winner of this auction, as anyone knows how hard it is to find a natural untreated Burmese spinel 5 carats up in the market. This cushion-shaped spinel weighs 9.46 carats, flanked by modified hexagonal-shaped diamond weighing approximately 1.90 carats.

Extraordinary Colors Padparadscha Sapphire & 18 karat White Gold


Quite an extraordinary colors padparadscha sapphire in the Sothebys' auction, an oval padparadscha sapphire weighing 5.12 carats, framed by diamond together weighing approximately 1.80 carats, mounted in 18 karat white gold. The buyer paid with the price of HKD 175,000.

2010/11/24

Tsavorite Garnet & Diamond Ring


Quite an extraordinary colors padparadscha sapphire in the Sothebys' auction, an oval padparadscha sapphire weighing 5.12 carats, framed by diamond together weighing approximately 1.80 carats, mounted in 18 karat white gold. The buyer paid with the price of HKD 175,000.

CAT'S-EYE REBELLITE, PINK SAPPHIRE AND DIAMOND RING


We haven't seen lots of cat's-eye rubellite tourmaline in jewelry market. Cat's-eye green tourmaline is more common than other types of tourmaline. In the recent Sothebys' auction in Hong Kong, we found a cabochon cat's eye rubellite jewelry. The cat's-eye rubellite tourmaline weighing 8.41 carats surrounded by brilliant-cut diamond alternately-set with pink sapphires mounted in 18 karat white gold.

Rare 15.95 carats Burmese Origin Pink Spinel Ring


Huge 15.95 carats Burmese origin pink spinel ring showed up in Hong Kong auction on October,6. It ended up with the hammer price of HKD 250,000. The spinel was mounted in 18 karat yellow gold and accompanied by GRS report stating that the 15.95 carat spinel is natural, of Burmese (Myanmar) origin, Vivid Pink color, with no indication of treatment.