20th Century Loose Gemstones

Stone: Colombian Emerald Total Weight: 1.26 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.99 mm x 6.48 mm x 3.83 mm . G...

Stone: Colombian Emerald Total Weight: 1.03 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.18 mm x 5.45 mm x 3.84 mm Ge...

An oval carved double-sided cabochon emerald weighing 53.64 carats, certified by GIA (Gemological Institute of America), can be considered rare and valuable Comments: Due to their gr...

Stone: Colombian Emerald Total Weight: 2.33 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.82 mm x 7.60 mm x 6.35 mm Ge...

Stone: Colombian Emerald Total Weight: 1.39 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.93 mm x 6.47 mm x 4.55 mm G...

Introducing an Exquisite 8.06 Carat GIA Certified Natural Cabochon Burma Sapphire - A Rare Gem of Unparalleled Beauty Discover the allure of this mesmerizing 8.06 carat GIA-certified...

Introducing a Magnificent GIA Certified No Heat Ceylon Cabochon Sapphire Dazzle and amaze with this exquisite GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire, a true gem o...

Showcasing exceptional artistry and natural beauty, this Colombian crystallized emerald is masterfully carved into an elegant leaf motif, weighing an impressive 22.73 carats and meas...

Type: Natural Star Sapphire Weight: 5.32 Carats Measurements: 9.15 x 7.66 x 7.18 mm Transparency: Translucent Color: Blue Phenomenon: Displaying Asterism (Star Effect) GIA Report Num...

Stone: Colombian Emerald Total Weight: 0.77 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.03 mm x 5.00 mm x 3.72 mm Geo...

Stone: Colombian Emerald Total Weight: 0.45 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 4.90 mm x 4.34 mm x 3.01 mm Geo...

Stone: Colombian Emerald Total Weight: 0.80 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.47 mm x 5.04 mm x 3.71 mm Ge...

Stone: Colombian Emerald Total Weight: 1.97 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.97 mm x 7.60 mm x 4.60 mm Ge...

An exceptional GIA Certified Natural Ruby originating from the legendary mines of Burma (Myanmar), this rare 3.59 carat loose gemstone showcases the rich character and collectible ap...

An exceptional and highly collectible GIA-certified natural Burma sapphire featuring a beautifully carved oval form, weighing an impressive 8.05 carats. This rare gemstone displays a...

Stone: Colombian Emerald Total Weight: 1.16 carat Shape: octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.80mm x 6.48mm x 3.79mm . Geog...

Stone: Colombian Emerald Total Weight: 5.44 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 10.91 mm x 10.34 mm x 6.77 mm G...

Details • Gemstone: Natural Ruby • Cut: oval • Weight: 0.68 ct • Origin: Siam (thailand) • Treatment: No treatement / no-heat • Dimensions: 5.6 x 4.2 x 3 • Certificate: Not in...

Stone: Colombian Emerald Total Weight: 0.73 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.23 mm x 5.12 mm x 3.45 mm Ge...

Rare, Large, Loose, Natural Diamond with official GIA Certificate and a hint of yellow color. This Desert diamond is the current popular trend in 2026. It is 7.20 Carats with a Round...

Stone: Colombian Emerald Total Weight: 0.44 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 4.72 mm x 4.33 mm x 3.03 mm Geo...

Stone: Colombian Emerald Total Weight: 0.47 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.00 mm x 4.25 mm x 3.01 mm Ge...

4.72ct Brazilian blue gray marquis shape tourmaline unique Brazilian tourmaline

Faceted Spessartite Garnet Weight: 4.55 Carats Dimension: 10.86 x 8.48 x 5.08 Mm Shape: Cushion Origin: Madagascar Color: Vivid Orange Certificate: On Demand Spessartine is a ma...

Stone: Colombian Emerald Total Weight: 2.39 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green size : 7.84 mm x 6.97 mm x 6.44 mm. Measureme...

Stone: GIA Certified Heart shape Deep green Emerald Total Weight: 0.55 carat Shape: Heart Shape Clarity: Transparent Luster: Very Good Color: Deep Green Measurements: 6.45 mm x 6.92...

Loose Natural Aquamarine – 10.01 Carats (Emerald Cut, EGL Certified, Heated) An exceptional natural aquamarine gemstone, presented as a loose stone and expertly fashioned in a sophi...

Stone: Colombian Emerald Total Weight: 1.80 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 8.77 mm x 6.44 mm x 4.36 mm Ge...

Stone: Colombian Emerald Total Weight: 1.51 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.22 mm x 6.40 mm x 4.67 mm . G...

AGL Certified trillion shaped vivid blue Apatite. This is a natural vivid red blue Apatite of 1.45 carats, with remarkable quality, fashioned in an elegant triangular trillion-cut s...

Stone: Colombian Emerald Total Weight: 0.45 carat Shape: Square Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 4.82 mm x 4.74 mm x 2.58 mm Geogr...

A refined collection of five natural emeralds, offered as loose gemstones in a variety of elegant shapes and sizes. This versatile parcel totals 2.78 carats, making it ideal for besp...

Rarity is an essential factor in determining the value of gemstones. Natural citrines are rarer than amethysts or smoky quartz because they occur less frequently in nature. The abse...

Stone: Colombian Emerald Total Weight: 0.45 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.06 mm x 4.41 mm x 2.72 mm Ge...

Stone: Colombian Emerald Total Weight: 2.00 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.90 mm x 7.20 mm x 5.62 mm Ge...

Stone: Colombian Emerald Total Weight: 0.77 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 6.54 mm x 5.01 mm x3.27 mm Geo...

1.90 Carat Brazilian Green Tourmaline Rectangle Mixed cut

The Details Gemstone: Natural Sapphire Cut: Round Cushion Weight: 3.48 carats Origin: Sri Lanka (Ceylon) Treatment : None Dimensions: 8.7x 8.3 x 5.1 Certificat: Yes - GEMPARIS

Stone: Colombian Emerald Total Weight: 0.48 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 4.59 mm x 4.38 mm x 3.54 mm Geo...

The Hook Possessing a commanding presence, this exceptional sapphire displays a saturating midnight blue hue reminiscent of the deepest oceans. Its crystalline structure captures lig...

Hakimoto By Jewel Of Ocean Round South Sea Pearl 17.7 mm Special 7.7 Grams Scecial Color South Sea Pearl Approximate

Stone: Emerald Total Weight: 1.19 carat Shape: Emerald Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.61mm x 4.65mm x 3.14mm And 5.40mm x 4....

Antique Chinese Jade Snuff Bottle. This unique piece features intricate carvings on a smooth, natural brown jade surface. The stone is polished to a soft sheen, highlighting its orga...

Stone: Colombian Emerald Total Weight: 1.10 carat Shape: Emerald Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.46mm x 4.11mm x 3.05mm And 5.15...

Stone: Colombian Emerald Total Weight: 1.27 carat Shape: Square Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.05mm x 5.00mm x 3.15mm And 5....

Immerse yourself in the captivating beauty of this stunning natural imperial green jade donut pendant. Crafted from the finest Type-A Myanmar jadeite jade, this pendant is a true mas...

Stone: Colombian Emerald Total Weight: 0.50 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.81 mm x 4.96 mm x 2.50 mm Ge...

Stone: Colombian Emerald Total Weight: 0.58 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.53 mm x 4.65 mm x 3.46 mm Ge...

Stone: Colombian Emerald Total Weight: 0.64 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.31 mm x 4.62 mm x 3.97 mm G...

A rare, investment quality GIA star ruby weighing 4.84 carats, no indication of heating GIA REPORT 6224671008 Natural star rubies are relatively rare and...

1.08 carat old-mine cut diamond. GIA graded E color, VS1 clarity. GIA grading report number is 1236538153. Comes with a full certificate.

A refined and highly collectible pair of natural green jadeite carvings, offered loose and unset, showcasing the purity and integrity prized in fine jade. These stones are certified ...

A diamond of remarkable presence and antique charm, this 8.06-carat Old European Cut diamond showcases the enduring beauty of vintage craftsmanship. Graded Q-R in color and VS1 in cl...

Exceptional 42.82 Carat Old European Diamond Layout – GIA Certified An extraordinary collection of 19 Old European cut diamonds, totaling an impressive 42.82 carats. This meticulous...

Round brilliant cut, 1.19 carat. GIA graded J color, Vs1 clarity, good symmetry. 57% table size is very good for brilliance. Faces up very attractive and brilliant. GIA lab gradin...

Shape/Cut: Princess Clarity: I1 Color: E Dimensions (mm): 4.94 X 4.72 X 3.69 Weight: 0.77ct EGL USA Report Number: US 42746215D (the diamond is laser inscribed but we do not hav...

Stone: Colombian Emerald Total Weight: 0.86 carat Shape: square Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 4.54mm x 4.48mm x 3.15mm and 4.46m...

Stone: Colombian Emerald Total Weight: 0.57 carat Shape: Square Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.35 mm x 5.23 mm x 2.56 mm Geogra...

Stone: Colombian Emerald Total Weight: 0.42 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 4.54 mm x 4.22 mm x 3.46 mm Geo...

Stone: Colombian Emerald Total Weight: 0.49 carat Shape: Octagonal Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 5.48 mm x 4.62 mm x 2.68 mm Geo...