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11.48 Carats Sky Blue Arizona Turquoise Cabochon Parcel - Natural Loose Gemstones, 15XP: This curated parcel of Arizona turquoise cabochons bursts with a vivid sky blue hue, saturated and luminous with a smooth, domed finish that enhances the stone's natural luster. Each cabochon, measuri

2026

11.48 Carats Sky Blue Arizona Turquoise Cabochon Parcel - Natural Loose Gemstones, 15XP

Five Ruby and Sapphire Gemstones: 5.36 carat loose blue (dark grey blue) oval cabochon, heated, Madagascar. 1.97 carat cushion shaped red ruby, heated, Songea, Africa (Tanzania). 0.98 carat cushion shaped cornflower blue sapphire, hea

Apr 09, 2026

Five Ruby and Sapphire Gemstones

Cordier Auctions

Est. $200-$300

4.49 Carats Green Spectrum Tourmaline Selection - Natural Loose Gemstones, 1XP: This curated selection of five rectangular step-cut tourmalines, weighing a total of 4.49 carats with individual dimensions ranging from 5.6 to 6.2 mm, unfolds a rich spectrum of green hues. From deep

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4.49 Carats Green Spectrum Tourmaline Selection - Natural Loose Gemstones, 1XP

Est. $40-$80

2.41 Carats 6.8mm Round Freshwater Pearl - Natural Loose Gemstone, 23XP: This perfectly spherical 6.8mm freshwater pearl radiates a soft, warm pinkish-peach hue with a delicate pearlescent luster that captures light in gentle, iridescent flashes. Its smooth, unblemished su

2026

2.41 Carats 6.8mm Round Freshwater Pearl - Natural Loose Gemstone, 23XP

10 oz Boulder Opal Gemstones WOW!: Fantastic assortment of loose semi-polished boulder opals. They are in various shapes and sizes for a total of approx. 10 ounces. These are great for making jewelry!!

2 days Left

10 oz Boulder Opal Gemstones WOW!

GOLDEN SUN AUCTIONS, Inc.

Est. $100-$250

9.64 Carats Robin's Egg Blue Arizona Turquoise Cabochon - Natural Loose Gemstones, 14XP: This curated parcel of Arizona turquoise cabochons showcases the iconic robin's egg blue hue that has made American turquoise world-famous-bright, sky-like, and balanced with subtle, earthy matrix inc

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9.64 Carats Robin's Egg Blue Arizona Turquoise Cabochon - Natural Loose Gemstones, 14XP

Est. $40-$80

Three Natural Ruby Gemstones with Lab Reports: 2.42 carat loose rectangular cushion shaped orangy red natural corundum (ruby), determined to have no indications of heating. 1.56 carat loose cushion shaped purplish red natural corundum (ruby), dete

Apr 09, 2026

Three Natural Ruby Gemstones with Lab Reports

Cordier Auctions

Est. $200-$400

Natural Ruby Gemstone with Lab Report: 1.23 carat loose cushion shaped purplish red natural ruby, determined to have no evidence of heat treatment, Burapha Gemological Laboratory, Chanthaburi. From a selection of fine gemstones of a retiri

Apr 09, 2026

Natural Ruby Gemstone with Lab Report

Cordier Auctions

Est. $100-$200

4.58 Carats Pale Yellow Apatite Parcel - Natural Loose Gemstones, 3XP: This luminous parcel of three oval-cut apatite gemstones, weighing a total of 4.58 carats with individual dimensions ranging from 7.4 to 9.9 mm, radiates a soft, buttery pale yellow hue. The faceted c

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4.58 Carats Pale Yellow Apatite Parcel - Natural Loose Gemstones, 3XP

Est. $40-$80

Natural Opal Gemstones, Many sizes: Nice assortment of vintage loose opals in various shapes and sizes. All will come as shown in the cases. The round case also appears to have a couple other stones inside.

2 days Left

Natural Opal Gemstones, Many sizes

GOLDEN SUN AUCTIONS, Inc.

Est. $60-$120

Three Natural Ruby Gemstones with Lab Reports: 2.71 carat loose cushion shaped purplish red natural ruby, determined to have no evidence of heat enhancement. 1.53 carat loose cushion shaped purplish red ruby, determined to have no evidence of heat

Apr 09, 2026

Three Natural Ruby Gemstones with Lab Reports

Cordier Auctions

Est. $200-$400

Natural Ruby Gemstones: Lot is five gorgeous loose rubies. There are four round and one oval. Will come in cases as shown.

2 days Left

Natural Ruby Gemstones

GOLDEN SUN AUCTIONS, Inc.

Est. $60-$120

Citrine & Smokey Quartz Gemstones Assorted: Wonderful assortment of vintage loose gemstones of citrine and smokey quartz. All are various shapes and sizes and come in cases as shown.

2 days Left

Citrine & Smokey Quartz Gemstones Assorted

GOLDEN SUN AUCTIONS, Inc.

Est. $40-$100

Turquoise Gemstones Assorted: Lot is a nice assortment of vintage loose turquoise in various shapes and sizes. All will come in cases as shown.

2 days Left

Turquoise Gemstones Assorted

GOLDEN SUN AUCTIONS, Inc.

Est. $40-$100

Natural Ruby Gemstone with Lab Report: 4.19 carat loose pear shaped purplish red, Mozambique, determined to have no indication of thermal treatment. The lab report is from GRS GemResearch Swisslab Switzerland, considered one of the most re

Apr 09, 2026

Natural Ruby Gemstone with Lab Report

Cordier Auctions

Est. $400-$800

One Natural Ruby Gemstone with Lab Report: 3.54 carat loose cushion shaped red natural ruby, determined to have no positive microscopic evidence of heat enhancement, Emil Gem Laboratory (Japan), Bangkok. From a selection of fine gemstones of a

Apr 09, 2026

One Natural Ruby Gemstone with Lab Report

Cordier Auctions

Est. $100-$200

Three Natural Ruby Gemstones with Lab Reports: 2.11 carat loose cushion shaped purplish red natural ruby, determined to have no evidence of heat enhancement. 1.02 carat loose pear shaped purplish red ruby, determined to have no evidence of heat en

Apr 09, 2026

Three Natural Ruby Gemstones with Lab Reports

Cordier Auctions

Est. $200-$400

Natural Ruby Gemstone with Lab Report: 1.81 carat loose oval shaped redish purple natural ruby, determined to have no indications of heat treatment, Burapha Gemological Laboratory, Chanthaburi. From a selection of fine gemstones of a retir

Apr 09, 2026

Natural Ruby Gemstone with Lab Report

Cordier Auctions

Est. $100-$200

Three Natural Ruby Gemstones with Lab Reports: 1.69 carat loose oval brilliant step cut orangy red natural corundum (ruby), determined to have no indications of heating, GIT The Gem and Jewelry Institute of Thailand. 2.44 carat oval natural red ru

Apr 09, 2026

Three Natural Ruby Gemstones with Lab Reports

Cordier Auctions

Est. $200-$400

Sunstone, Moonstone Gemstones: Great assorted loose moonstone and sunstone, also one as identified as "gold stone". They are in various shapes and sizes and will come in cases as shown.

2 days Left

Sunstone, Moonstone Gemstones

GOLDEN SUN AUCTIONS, Inc.

Est. $40-$100

Four Natural Ruby Gemstones: 5.07 carat loose oval red ruby, Africa. 2.02 carat oval pinkish red, Africa. 2.32 carat red octagon, Madagascar. 0.99 carat oval red, Madagascar. The gemstone records from the gemologist collector ind

Apr 09, 2026

Four Natural Ruby Gemstones

Cordier Auctions

Est. $200-$400

Six Gemstones incl Ceylon Sapphire: 0.83 carat loose oval cornflower blue sapphire, Ceylon. Collector's record indicates heated for this sapphire. 4.84 oval deep blue natural zircon, Cambodia. 1.3 carat oval light green tsavorite garnet

Apr 09, 2026

Six Gemstones incl Ceylon Sapphire

Cordier Auctions

Est. $100-$200

Two Natural Ruby Gemstones with Lab Reports: 2.38 carat loose cushion shaped purplish red, determined to have no evidence of heat enhancement. 1.44 carat loose pear shaped pinkish red, determined to have no evidence of heat enhancement. Both lab

Apr 09, 2026

Two Natural Ruby Gemstones with Lab Reports

Cordier Auctions

Est. $200-$400

Three Natural Ruby Gemstones with Lab Reports: 1.46 carat loose natural pink ruby, oval cut, no evidence of heat enhancement, SLP Gem Laboratory Bangkok. 2.05 carat loose OM/Fancy cut red natural ruby, no evidence of thermal treatment, Gemological

Apr 09, 2026

Three Natural Ruby Gemstones with Lab Reports

Cordier Auctions

Est. $200-$400

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