Lustrous loose gemstones gathered for online auction Dec. 26

Ethiopian opal, 34.58 carats. Estimate: $1,500-$1,600. Jasper52 image

NEW YORK – Jasper52 will conduct a diverse loose gemstones auction on Wednesday, Dec. 26, showcasing a variety of cuts, stones, and colors. From intense sapphire to lustrous emeralds, certified diamonds and more, bidders are sure to find a unique treasure among this kaleidoscope of colors to fit into a setting of equal beauty. Bid absentee or live online through LiveAuctioneers.

At the top of the scale in size and weight is a flashy 34.58-carat Ethiopian opal (above) that is expected to sell for $1,500-$1,600.

A 19.16-carat bluish-green tourmaline in the sale is valued at $800-$1,000.

Bluish-green tourmaline, 19.16 carats. Estimate: $800-$1,000. Jasper52 image

An ample supply of diamonds will be going up for bid in this auction of more than 400 lots. An AIG-certified1.32-carat radiant diamond has a $3,000-$3,500 estimate.

Radiant natural diamond, 1.32 carats, F/I1 clarity. Estimate: $3,000-$3,500. Jasper52 image

Several natural fancy yellow diamonds are available. A 1.75-carat cushion-shape yellow diamond is De Beers certified and estimated at $6,000-$7,000.

Natural fancy vivid yellow cushion shape diamond, 1.75 carats, Heart and Arrow make. Estimate: $6,000-$7,000. Jasper52 image

Another De Beers-certified natural cushion-shape diamond, this one weighing in a 1.00-carat, has a $9,000-$11,000 estimate due to its vivid yellow color.

Natural fancy vivid yellow cushion shape modified brilliant diamond, 1.00 carat, VS2. Estimate: $9,000-$11,000. Jasper52 image

Additional large gemstones include a 4.81-carat AIG-certified diamond having a rich chocolate color (est. $13,000-$16,000).

Natural diamond, 4.81 carats. Estimate: $13,000-$16,000. Jasper52 image

This Jasper52 auction will be held Wednesday, Dec. 26, beginning at 5:30 p.m. Eastern time.