Gemstones, 18X13

Showing 1-24 of 118 items

Gemsavvy Nostalgia(Tm) We Created This Sterling Silver Pendant With Longer Prongs Specifically For Drusy Quartz Or Other Stones Of Similar Full Dimension. This 4-prong Pendant Accepts An 18x13 Mm Oval Stone. It Features A Drop Measuring 1 1/16 Inch And A Width Measuring 1/2 Inch. The Large Bail Measures 3.5mm. Includes An Anti-tarnish Treatment. Made In The U.S.A.<br/><br/>Presenting GemSavvy, an exclusive line of calibrated castings and semi mounts that require the use of tools to set your stone. But you don't have to be a bench jeweler to enjoy these settings! For those who are comfortable with their stone setting skills, go ahead, get your pliers ready and create your unique piece of jewelry now! If you're a beginning stone setter, you may want some assistance; it's all up to you. Available in 14kt, 10kt and sterling silver, GemSavvy gives you a wide variety of rings, earrings, pendants and bracelets to choose from. GemSavvy Castings and Semi Mounts..exclusively on Jewelry Television and jtv.com. The Nostalgia Casting and Semi Mount Collection(tm) has a classic, understated style that complements any type of wardrobe or accessory. Regardless of the type of jewelry you want to create, the Nostalgia Casting and Semi Mount Collection (tm)offers a wide range of styles for designing the jewelry pieces you'll wear for a lifetime.

Gemsavvy Nostalgia(Tm) Sterling Silver 18x13mm Oval Pendant Casting

$19.99

Cor-de-rosa Morganite Average 9.25ct 18x13mm Pear Shape. Gemstone Mined In Mozambique And Cut In India.<br/><br/>Discovered at the turn of the 20th century, Morganite was named in honor of JP Morgan, one of the most important collectors of gems and minerals at this important time in American history. Hailing from Mozambique, Cor-de-Rosa Morganite?s color is serene and tender, radiating a charm and vitality like no other pink gem. Its name was derived from the Portuguese adjective meaning pink. Available in shades ranging from pastel pink to feisty fuchsia to subtle apricot, we have a diverse mixture of gems sure to satisfy our most discriminating customers! Fall in love with Cor-de-Rosa Morganite today!

Cor-de-rosa Morganite Average 9.25ct 18x13mm Pear Shape

$509.99

Afghan Lapis With Rutilated Quartz Doublet Average 12.00ct 18x13mm Oval Cabochon

$69.99
$32.02 save 54%

Brazilian Euclase 11.85ct 17.94x12.86x7.85mm Oval

$1,030.95

Cor-de-rosa Morganite Average 12.00ct 18x13mm Oval. Gemstone Mined In Mozambique And Cut In India.<br/><br/>Discovered at the turn of the 20th century, Morganite was named in honor of JP Morgan, one of the most important collectors of gems and minerals at this important time in American history. Hailing from Mozambique, Cor-de-Rosa Morganite's color is serene and tender, radiating a charm and vitality like no other pink gem. Its name was derived from the Portuguese adjective meaning pink. Available in shades ranging from pastel pink to feisty fuchsia to subtle apricot, we have a diverse mixture of gems sure to satisfy our most discriminating customers! Fall in love with Cor-de-Rosa Morganite today!

Cor-de-rosa Morganite Average 12.00ct 18x13mm Oval

$659.99

Brazilian pyrite in quartz, average 11.65ct 18x13mm rectangular octagonal, buff top and quantum cut(R).

Brazilian Pyrite In Quartz Average 11.65ct 18x13mm Rectangular Octagonal Buff Top And Quantum Cut(R)

$58.99

African Hemimorphite Average 15.00ct 18x13mm Oval Cabochon

$359.99

Brazilian conundrum quartz average 6.75ct 18x13mm oval, mirror cut. Gemstone mined and cut in Brazil. Inclusions will vary

Brazilian Conundrum Quartz Average 6.75ct 18x13mm Oval Mirror Cut, Inclusions Will Vary

$67.99

Australian Chrysoprase Minimum 10.00ct 18x13mm Oval Cabochon

$129.99
$77.99 save 40%

Brazilian Citrine Average 11.00ct 18x13mm Oval

$109.99
$69.99 save 36%

Caramel Spice Opal(Tm) Average 6.50ct 18x13mm Oval Cabochon

$58.99

Tanzanian rhodolite garnet average 15.00ct 18X13mm oval. Gemstone mined in Tanzania and cut in India.

Tanzanian Rhodolite Garnet Average 15.00ct 18x13mm Oval

$368.99

Caramel Spice Opal(Tm) Average 6.50ct 18x13mm Oval Cabochon

$58.99

Maw-sit-sit average 12.00ct 18x13mm rectangular cushion. Gemstone mined in Myanmar and cut in Thailand.

Maw-sit-sit Average 12.00ct 18x13mm Rectangular Cushion

$39.99

Brazilian swiss blue topaz average 14.00ct 18X13mm oval checkerboard cut. Mined in Brazil and cut in Thailand.

Brazilian Swiss Blue Topaz Average 14.00ct 18x13mm Oval Checkerboard Cut

$112.00
$58.93 save 47%

Colheita Fire Opal(Tm) Average 8.00ct 18x13mm Oval. Mined And Cut In Brazil.<br/><br/>Colheita Fire Opal(TM) From the sunny land of southern Brazil comes the latest addition to the Jewelry Television family of gemstones: Colheita Fire Opal. Meaning "to harvest" in native Portuguese, Colheita Fire Opal is typically harvested in soybean fields between growing seasons. And what a fiery gem crop to mine! With blazing, intense hues that appear to be on fire from within, the colors of Colheita Fire Opal can range from vivid yellows to tangerine oranges to dramatic reddish oranges. With exceptional clarity and dazzlingly brilliant colors, Colheita Fire Opal will make an excellent addition to your gem collection or make the perfect focal stone for your jewelry making purposes. Comparable in beauty and quality to the finest Mexican fire opals, Colheita Fire Opal is available exclusively at Jewelry Television and jtv.com.

Colheita Fire Opal(Tm) Average 8.00ct 18x13mm Oval

$734.99

Mozambique Paraiba Tourmaline 13.17ct 18x13mm Oval

$3,099.99

Brazilian dendritic quartz minimum 12.50ct 18x13mm oval. Patterns and colors vary. Mined and cut in Brazil.

Brazilian Dendritic Quartz Minimum 12.50ct 18x13mm Oval

$34.99
$19.99 save 43%

Morado Opal(R) Average 7.00ct 18x13mm Oval Cabochon

$69.99

Brazilian Confetti Quartz Average 13.00ct 18x13mm Rectangular Octagon

$57.99

Black spinel average 16.00ct 18x13mm octagon specialty cut(TM). Gemstone mined thailand and cut in india.

Black Spinel Average 16.00ct 18x13mm Octagon Specialty Cut (Tm)

$69.99
$29.99 save 57%

Heirloom Iolite Minimum 8.25ct 18x13mm Oval. The Stone Is Laser Inscribed. Gemstone Mined In India And Cut In The United States. Estimated Appraisal Value $1,237.00<br/><br/>Jewelry Television's Vault Heirloom Collection consists of our finer quality Iolite gemstones. Each gem in this prestigious collection is rich in its color and possesses fine clarity. Each Vault Heirloom Iolite has been independently certified by G.S. Laboratories and laser inscribed on the gem's girdle with a unique certificate identification number. Additionally, a member of our professionally trained staff has personally inspected the polishing, luster and finish of each Vault Heirloom Iolite gemstone to ensure it meets our exacting standards for this prestigious collection. Maintaining the high standards that you would expect from a collection of this stature, your Vault Heirloom Iolite gemstone will arrive in special packaging and includes a complementary polishing cloth that allows you to safely clean your treasured Iolite. The Vault Heirloom Collection is available exclusively at Jewelry Television and jtv.com.

Heirloom Iolite Minimum 8.25ct 18x13mm Oval Laser Inscribed Eav $1,237.00

$999.99

Brazilian Rhodonite 16.25ct 18x13mm Oval Cabochon

$1,112.99
$612.14 save 45%

Brazilian Pyrite In Quartz Average 11.65ct 18x13mm Rectangular Octagonal Buff Top And Quantum Cut(R)

$62.99

Showing 1-24 of 118 items

shop by type

shop by gemstone

specialty stores

shop JTV brands and collections

shop by stone

shop by type

specialty stores

shop jtv brands and collections

shop beads by type

shop by brand

shop by type

education and resources

Techniques

Experts

gifts for her

gifts for him

gifts for children & baby

shop by type

shop by discount

shop by price

shop by type

shop by material

specialty stores

Gemstones, 18X13

Shop JTV

Watch JTV

About Us

Learn

Help