A color change alexandrite and eighteen karat gold ring

A color change alexandrite and eighteen karat gold ring centering a bezel-set cushion-cut alexandrite weighing approximately 10.00 carats, in fluted step mount. (10.5 dwt.; Size: 4 1/2) Provenance <

Eighteen-Karat White Gold, Alexandrite and Diamond Ring, mounted with a central rectangular step-cut natural GIA certified alexandrite, with a weight of 2.74 carats, and with a color change from green

A diamond, cognac diamond and eighteen karat bi-color gold ring, Pav&#233;of spiral design, featuring a row of tension-set rough diamond cubes, centering a cushion modified brilliant-cut near colorles

A group of sapphire ringsincluding two eighteen karat bi-color gold rings, with central circular-cut sapphires, each weighing approximately 0.25 carat; a fourteen karat gold ring, designed as channels

4.32ct Color Change Alexandrite, 1.70ctw Rose Cut Diamond and 18K White Gold Ring Designed by Prince Lorenzo de Medici - This beautiful ring is a masterpiece of design envisioned by the illustrious Pr

A un-treated black opal, diamond and eighteen karat bi-color gold ringdesigned as an oval cabochon black opal, measuring 14.49 x 12.65 x 6.51 mm, within pierced and millegrained round brilliant-cut di

This retro 14K rose gold ring circa 1940s or 1950s features a round faceted color change synthetic sapphire, sometimes referred to as alexandrine. It changes from purple to bluish-purple. Ring is a si

Fine Oscar Heyman (signed) eighteen karat yellow gold ring set with an approximate 1.40 ct. oval diamond, M-N color, VS-VVS clarity, (set in iridium platinum), approximately 1.5 ct. tw. oval diamond s

A Synthetic Color Change Sapphire Ring. 14 karat yellow gold mounting contains an octagonal faceted synthetic sapphire Size: 9 Wt: 7.2 grams

Estate yellow gold ring, likely 10kt gold flashed with high carat gold (per EDXRF test), lab created color change sapphire (lab alexandrite), approx 30.00ct, split/ cut shank, approx size 5.5, 9.1 gra

Set with one emerald weighing approximately 3 carats. Also set with approximately 0.75 carats of round brilliant and tapered baguette diamonds judged to be VS in clarity and G-H in color. Size 7. 5 dw

18 Karat Yellow Gold and Stone Ring set with one round cut Color-Change Synthetic Sapphire; size 7-½, weighs 7.6 grams

18 Karat Yellow Gold and Stone Ring channel set with one oval cut Color Change Synthetic Sapphire, approximately 10.51 carats; size 7-¼, weighs 7.5 grams

Eighteen-Karat White Gold and Diamond Ring, mounted with a central emerald-cut diamond, with an approximate weight of 1.02 carats, approximate color G and clarity SI1, flanked by twelve graduated roun

RESERVE PRICE - 10000 $ 14 K / 585 White Gold Designer ALEXANDRITE (Color Change) GIA Certified &amp; Diamond Ring &nbsp; 14 K Hallmarked White gold Gross metal weight - 7.700 g Tota

Eighteen-Karat White/Yellow Gold and Diamond Ring, set with a central marquise-cut diamond, with an approximate weight of 0.67 carats, approximate color H and clarity VS2, and thirty-four round brilli

Vintage Tiffany & Co Schlumberger Studios Sixteen Round Brilliant Cut Diamond, Platinum and Eighteen Karat Yellow Gold Band. Diamonds D-E color, VVS clarity. Signed Tiffany, Schlumberger Studios, PT95

14k Yellow Gold Genuine Alexandrite & Emerald Three Stone Ring. It Features A .58ct Faceted Oval Cut Alexandrite Center Stone With A Good Color Change From Purplish Blue To Green. The Alexandrite Is F

An eighteen karat tri-color stacking ringdesigned as three interlocked polished hoops in white, yellow or rose gold. 3.0 dwt; size: 3 1/2

Chic and sparkly diamond eternity band. Eighteen beautiful and perfectly matching square step cut diamonds are set in 14 karat white gold. The diamonds are G-H color, VS1 clarity, total weight approxi

An unheated Burma ruby, diamond and eighteen karat gold ringdesigned as an oval-cut ruby, weighing 3.77 carats, flanked by two round brilliant-cut diamonds; accompanied by GIA report no. 2225345800, M

A rose quartz and eighteen karat gold ring, Haroldo Burle Marx Brazil designed as an oblong carved rose quartz measuring approximately 28.00mm x 14.70mm x 11.10mm, within polished bezel over brushed g

An unheated Burma ruby, diamond and eighteen karat gold ringdesigned as an oval-cut ruby, weighing 2.43 carats, flanked by two round brilliant-cut diamonds; accompanied by GIA report no. 6224358881, M

A turquoise, diamond, and eighteen karat gold ringcentering a round turquoise cabochon measuring approximately 9.10 mm, secured by straps of baguette-cut diamonds in a pavé-set round brilliant-cut di