Colorado - Jewelry & Watches

18K rose and white gold three quarters bangle bracelet with a fine satin finish. Sixteen star motifs, centering a brilliant cut diamond, in the cut out design, giving the appearance ...

Cartier Paris 18K yellow gold large link bracelet, circa 1950. 8 1/2 inches in length and weighing 76.4 grams, this seven link large bracelet is signed in engraved script Cartier Pa...

David Yurman vintage 22K solid gold large ring from the David Yurman Petrvs Collection. Yurman got his inspiration for this Collection from ancient coins...

Very fine sapphires, natural with no undesirable ('diffused') treatment. The bright stones are prong set in both white and yellow gold in this well made bracelet. There are 15 finel...

This is a GIA (Gemological Institute of America) cushion brilliant. This center stone ALONE weighs 3.02 cts. It is a natural diamond - not synthetic or lab grown! Additionally a "cus...

Simple in its 18K yellow gold craftsmanship, this 4.7 gram ring possesses 6 round brilliant cut fine diamonds and 6 fancy tapered baguette cut white diamonds with a collective weight...

This antique Victorian navette-shaped dinner ring is designed around an oval red garnet center stone surrounded by four seed pearls. Set in 10K rose gold.

David Yurman 22K solid gold large ring from the David Yurman Petrvs Collection. Yurman got his inspiration for this Collection from ancient coins, intagl...

A bold, emerald-cut natural aquamarine weighing approximately 32.25 carats centers this exquisite cocktail ring. The aquamarine measures approximately 21.24 x 18.29 x 12.23 mm and ...

A rare, lustrous white natural saltwater pearl (of the Pinctada species) certified by the Gemological Institute of America centers this magnificent late Edwardian/early Art Deco ring...

Very fine large natural star sapphire weighing exactly 11.74 cts. This stone has a fine "star'., The color is a bright blue and the stone lacks inclusions that are distracting to th...

Large and Exquisite Etruscan Revival pale pink finely carved with high relief conch shell cameo of Medusa, American, 1875. This is one of the finest 19th century cameos we have en...

Spessartite garnet, also called a Mandarin Garnet, ring by the jewelry master Michael Zobel. The shank is a gold sleeve that fits nearly 1.1/2 inches of the finger. The center beze...

Platinum and diamond 'snowflake' cross, 1 - 7/8th inches long including the diamond pave bale. This vintage cross possesses 1.67 cts of fancy cut diamonds - long baguette cuts with a...

Antique silver topped yellow gold brooch and pendant centering a gem quality natural approximately 22 ct. Siberian amethyst in a fancy octagonal shape. This stone, prong set, has an ...

Tiffany & Company vintage bracelet hand crafted in 18K, and marked as such on the clasp. Possessing 55 round well matched and finely cut natural bright medium blue clean prong set sa...

Antique gold painting under rock crystal, these finely painted dogs with a tied pink ribbon are brimming with personality, they was made circa 1860. In both yellow and pink gold, t...

Tiffany & Co. Soleste round brilliant cut diamond engagement ring with two matching Tiffany & Co. diamond bands and a Tiffany & Co. larger gentleman's plain wedding band ...

18K 1960's ring centering a deep red/orange (oxblood) natural coral bead measuring 15.5 in diameter. This ring is not your typical coral and gold ring as seen so often. This ring is...

This exquisite Art Deco engagement ring features an Old European-cut diamond center stone measuring approximately 0.65 carats, F color I1 clarity. Set in 18K white gold with fine fil...

Cartier 18K bamboo motif crossover band ring decorated with bright vivid blue and 'lime' green enamel on patterned gold. Signed Cartier (slightly indistinct) underneath in the interi...

Antique silver topped yellow gold brooch and pendant centering a gem quality natural approximately 22 ct. Siberian amethyst in a fancy octagonal shape. This stone, prong set, has an ...

Finer than most others, this Tiffany & Company vintage flexible bracelet is hand crafted in 18K, and marked as such on the clasp. Possessing 55 round well matched and finely cut natu...

18K white gold possessing 2.00 cts of fine white brilliant cut diamonds, G/H, and very slightly included, VS. These well matched and well cut stones surround 21 very fine natural sap...

This vintage link bracelet features ten circular carved natural jade plaques set in 15K yellow gold (hence of British origin). The bracelet measures 6 inches in diameter.

Star sapphire, unheated, weighing an estimated 27 cts, this stone is accompanied by a GIA Grading Report stating this natural sapphire unheated, is is large and impressive displayin...

This dazzling mid-century ring features a round brilliant-cut diamond center stone measuring approximately 0.55 carats set between shimmering shoulders embellished with four smaller ...

Antique gold and diamond filigree bar pin, the three diamonds are bezel set in the center. The estimated weight of these 3 old cut diamonds is .35 cts. This pin is 2.5 inches in le...

Angela Cummings 18K earrings. These remarkable 18K yellow gold, amethyst bezel set in very light blue natural chalcedony, these unusual earrings are by Angela Cummings. They are sli...

Fine iridescent enamel with delicate shading from pink to light yellows and green. Wonderfully executed, this five petal blossom centers a white natural pearl measuring approximately...

This antique Victorian engagement ring showcases an Old Mine-cut diamond measuring approximately 0.90 carats, I-J color and SI2 clarity. The diamond is set within a buttercup, or Bel...

Antique silver topped yellow gold brooch and pendant centering a gem quality natural approximately 22 ct. Siberian amethyst in a fancy octagonal shape. This stone, prong set, has an ...

Antique heart shaped, buff-topped natural amethysts are suspended from a platinum and rose cut diamond garland. The natural 3 amethysts are prong set in 18k yellow gold. The platinum...

Very fine natural 8.26 ct chrome tourmaline. This stone has very fine color. Usually one sees tourmaline that is a very dark and dull spinach color, or light and pale with visible ...

Tiffany & Co. Soleste round brilliant cut diamond engagement ring with two matching Tiffany & Co. diamond bands and a Tiffany & Co. larger gentleman's plain wedding band with a polis...

This golden representation of the magnificent ram, often associated with strength in Greek mythology, is sculpted in exquisite detail in this flexible bangle bracelet featuring a dou...

Very fine large natural star sapphire weighing exactly 11.74 cts. This oval stone, held by four long well shaped prongs, has a medium deep blue color. The distinct star is created na...

Antique carved amethyst weighing approximately 20 cts display a fine deep, clear, purple color. This antique intaglio circa 1875 has been mount...

18th century micromosaic of a turtle dove on her nest with a chick, attributed to Giacomo Raffaelli. To see a similar plaque, signed and dated Giacomo Raffaelli, 1791; see: Aste Bolaffi Auction House, lot 324, May 31, 2023, Torino Italy. Birds were a popular motif in micromosaics in the last quarter of the 18th century and into the early 19th century. This mosaic is well executed with fine detail as seen in the shading. Little effort had been made in the dark background to follow the contour of the dove's silhouette, instead keeping the tessera in horizontal rows with square tesserae. The decorative border or millefiori of three colors around the edge create a colorful frame to this delightful scene. All of these characteristics date this plaque as being late 18th century and most likely executed by Giacomo Raffaelli. For more detailed information, see page 32 of "The Gilbert Collection Micromosaics by Jeanette H. Gabriel. Philip Wilson Publishers. The reader will see the characteristics unique to Raffaelli. Jeannette Gabriel is considered a foremost expert in the work of Raffaelli, and was a statically important participant in the management, development and analysis of the Gilbert Collection. Her observations relative to the work of Raffaelli are therefore quite credible by art historians This micromosaic is 2 5/8th inches in diameter, and backed in copper which is typical of plaques made at this time. This plaque was probably set onto a box of some sort as it has a glue like substance on the verso, which can be removed. We have chosen to keep this as it came to us, and in an effort to be careful, we have made no effort to remove it. We have one of the largest collections of micromosaics offered for sale. If our reader is searching for a particular motif, we would be happy to list it here for your consideration. From very large wall hangings...

Star sapphire, unheated, weighing an estimated 27 cts, this stone is accompanied by a GIA Grading Report stating this natural sapphire unheated, is is large and impressive displayin...

This stunning cuff bracelet by celebrated jeweler Barry Kronen features approximately 15.00 carats of full cut and rose cut diamonds intricately arranged ...

Antique, American Civil War era, yellow gold pendant/brooch with stylized leaf motifs that appear to open up revealing at the center a cluster of natural vivid pink/red Almandine gar...

Antique silver topped yellow gold brooch and pendant centering a gem quality natural approximately 22 ct. Siberian amethyst in a fancy octagonal shape. This stone, prong set, has an ...

Crafted in the 1920s from platinum, this stunning Art Deco bracelet features three bezel-set marquise diamonds (the center stone measures 0.60 carats) surrounded by an array of glist...

Amethyst and Diamond Large and Important 18K White Gold Ring. This is a large, 1.25 inches vertically, by 1 - 1/8th inch ring that possesses a complex white on white design and that ...

This dazzling Art Deco link bracelet fashioned in platinum showcases a glistening array of Old European cut, single cut, marquise and baguette diamonds totaling approximately 9.00 ca...

Fine white brilliant cut line of flush set diamonds set in a nice wide sterling silver cuff bracelet with a patina finish 1 1/2 inches wide 9 - 1.3mm fine white diamonds .36ctw total

This stunning solitaire ring crafted in 18K white gold from Belais Manufacturing Co in New York City, one of the first manufacturers of 18K white gold in the United States, is design...

Diamond pave bird pin set with 93 brilliant cut diamonds amounting to approximately 2 cts. These diamonds are all well cut and finely matched. They are estimated to be conservatively...

18K yellow gold large and bold ring centering a deep red/orange (oxblood) natural coral bead measuring 15.5 in diameter. The coral is even in color. Underneath the stone, there is a ...

This stunning mid-century ring is designed around an Old European-cut diamond center stone measuring approximately 0.62 carats, G color SI2 clarity, and flanked by four transitional-...

An Old European-cut diamond center stone weighing approximately 0.63-carats, J color and VS clarity, sparkles from within this retro-era engagement ring, complemented with eight roun...

14k white gold, bezel set diamond 'line earrings'. Elegant and modern, these earrings feature round brilliant cut diamonds graduating in size that total 1.00 carat. In the style of T...

Antique pin/pendant centering a cameo which is accented with rose cut diamonds and natural pearls. The carnelian cameo of lovers on a swing has, on the verso, the word Printemp (Fre...

Crafted in the 1950s from 14K yellow and white gold, this stunning midcentury two-tone band is designed around three Old European-cut diamonds totaling approximately 0.21 carats, H c...

Spessartite garnet, also called a Mandarin Garnet, ring by the jewelry master Michael Zobel. The shank is a gold sleeve that fits nearly 1.1/2 inches of the finger. The center beze...

Antique upper arm bangle of ebony with diamonds bezel set. Describing a perfect circle and having an internal diameter of 2-5/16th inches, this very unu...

18K yellow gold bangle bracelet by Cartier, signed on the clasp and with indistinct numbers on the inside rim. This is a large wide statement, with an interior dimension of approxima...

Beautifully crafted in 20K yellow gold and platinum, this exquisite bracelet features a continuous garland of carved leaves, each one meticulously sculpted with intricate detail. The...

Finer than many Tiffany & Co. bracelets we have seen, this yellow gold bracelet possesses five fine bezel set natural high cabochon lapis lazuli stones with gold flecks. The bezel se...