Trillion Cut Necklaces

This pendant is just gorgeous! It is pre-owned but in excellent condition. It was very well cared for. The cut of the stone is just magnificent. It is a Trillion cut citrine stone that measures 16 x 12 x 6 mm and is 4.5 carats. The pendant is accented by diamond accents on top. It is stamped "313 10k". The pendant itself measures 24 mm long and 16.5 mm wide. It is on a 14k Italian Yellow Gold...

This double strand necklace we created with 10mm faceted round prehnite, 10-12mm faceted trillion cut prehnite, 6mm faceted transparent rondels and mint green pearls. The 14K gold-fi...

A luminous mint tourmaline, diamond, and freshwater pearl necklace, designed for the collector who appreciates rare color, graceful geometry, and refined feminine elegance. This neck...

Introducing our exquisite Yellow Sapphire and Halo Diamond Gold Drop Pendant—a timeless masterpiece that embodies elegance and sophistication. This meticulously crafted pendant is a ...

Silver and turquoise pendant necklace by Native American artisan, signed MB. Signed with an etched MB, this substantial necklace features different types of...

25.15 carats of trillion-cut lab-grown diamonds. One natural emerald. 43 grams of 14K yellow gold. This full-length graduating necklace sets a pair of pointed triangular diamonds at ...

Two trillium shaped cabochon aquamarines of 14 mm and 14 x 16 mm are arrainged vertically and set in exquisitely crafted "3 point with spirals and jawan" artisan handcrafted 18K sett...

This elegant pendant showcases a vibrant 4.61 carat Paraiba tourmaline cut in a striking trillion modified brilliant shape. The gemstone displays a luminous bluish-green color, a sig...

This is a new gorgeous, one-of-a-kind pendant. It has a big beautiful trilliant cut natural quartz that contains veins of natural gold within it. The stone measures 14.2 x 12.4 x 1...

What a beautiful one-of-kind piece! The freeform Australian Boulder Opal displays incredible flashes of green and blue with undertones of orange and red. The Opal is enrobed in 18 ...

Adorable Kitty Cat Fire Opal & Diamond Necklace 14k Yellow Gold. Design Idea: Inspired by a tiny magical creature, the design combines a bright fire opal “head” and a shimmerin...

18K Yellow Gold Diamond and Gemstone Pendant JAGi Certified- Striking and richly detailed, this substantial 18K yellow gold cross pendant is set with a vibrant array of natural gems...

Here we have a gorgeous, brand new, and custom designed pendant necklace crafted in solid 18k white gold. The triangular shaped pendant features a fine, GIA certified, trillion cut d...

Triangle Diamond center weighing 1.57 Carats with 3 more triangles to for the full 6 points of a Star of David. Diamonds set at the reverse for versatility and extra detail. 1.57 C...

Welcome to Blue Star Gems NY LLC! Discover popular engagement ring & wedding ring All designs from classic to vintage inspired. We offer Joyful jewelry for everyday wear. Just for yo...

An exquisite 10 x 16 mm triangular faceted emerald from the Itabira mines in Minas Gerais, Brazil is mounted within a triple layer "line texture" artisanally crafted 18K gold mount, ...

Elegant Australian Solid Opal Diamond Pink Sapphire Pendant Necklace 14k Yellow Gold. Free Domestic USPS First Class Shipping! Free Gift Bag or Box with every order! Opal—the queen...

The "Sun Princess" Necklace is a one-of-a-kind masterpiece featuring a Druzy Agate carving of a lady's profile by Canadian artist Thomas McPhee. This necklace is adorned with 0.58 ca...

A contemporary diamond pendant necklace crafted in solid 18ct yellow gold, featuring a striking triangle-cut natural diamond weighing approximately 0.50ct. Suspended from a 17-inch g...

Natural White Opal Trillion Cut Necklace Chain Pendant in 925 Sterling Silver, Handmade Genuine Opal Jewelry for Women, Statement Necklace Pendant 💎 GEMSTONE TYPE: Opal ⚖️ WEIGHT:...

Video upon request! Shape :  TRIANGULAR Avg Size :  0.58 Color :  D-G Clarity :  VVS2-SI2 Floro. :  NON-STG Total Weight :  37.07 Ct No. of Pcs. :  64 From Emilio Jewelry, a well kn...

This elegant pendant necklace features a natural trillion-cut tanzanite measuring 9mm and weighing approximately 2.50 carats. The distinctive triangular shape highlights the gemstone...

The Fat Pigeon - Mexican Fire Opal Diamond Pendant 18K Yellow Gold Adorable Bird Necklace. Design Name: The Fat Pigeon Free Domestic USPS First Class Shipping! Free One Year Limite...

--Stone(s):-- (1) Natural Genuine Amethyst - Trillion Cut - Prong Set - Very Nice Deep Purple Color - 21.2x18.8mm (approx.) (8) Natural Genuine Diamonds - Round Brilliant Cut - Prong...

Minimalist Australian Black Opal Necklace 14K Yellow Gold. Free Domestic USPS First Class Shipping! Free Gift Bag or Box with every order! Opal—the queen of gemstones, is one of th...

This stunning 18-karat white gold necklace features a brilliant 3.03-carat cut-cornered triangular step-cut diamond as its centerpiece, GIA-certified with an F color and SI1 clarity ...

S Shaped Diamond Australian Opal Fossil Shell Necklace 18K Yellow Gold. Opalized Shell Fossil is very rare compared with regular opal. Free Domestic USPS First Class Shipping! Free ...

Presenting our Natural Myanmar Bright Green Jade Carved Bamboo, Ruyi, and Peach Pendant, a stunning double-faced jade piece that beautifully showcases the intricate artistry of jade ...

All the radiance of a fiery evening sky shines from this rare Mandarin garnet. Displaying a rich "mandarin" hue, this monumental 15.01-carat stone disp...

This vintage 14k yellow gold pendant features a 1.25-carat tanzanite with a vivid violet-blue hue that stands out beautifully against the warm gold setting. Diamond accents add a tou...

A Cascade of Warm Pink & White Light — Trillion Pink Sapphire & Diamond Fringe Necklace in 14K Solid Yellow Gold Details:- Item Code :- NEMJ-903 Material - 14K Solid Yellow ...

Faye Kim Platinum Trillion Diamond Station Necklace, a one-of-a-kind piece featuring brilliantly cut trillion diamonds set along a sleek hand-finished platinum chain. Each diamond is...

This graceful vintage necklace showcases a serene aquamarine gemstone, known for its soft blue hue, framed by dazzling natural diamonds. Set in luxurious 14k white gold, the design o...

Elevate your style with this stunning jade pendant, crafted from 100% natural, untreated Type-A Myanmar jadeite. Hand-carved into an elegant vase shape adorned with intricate ruyi an...

This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry house with nearly 50 years of history serving elite collectors, retailers, and dealers ...

Simply Beautiful! Finely detailed Statement Trillion Kunzite and Diamond Gold Pendant. Featuring a securely Hand set Trillion Kunzite, weighing approx. 11.19 Carats. Enhanced with Di...

Embrace the beauty of this stunning jade pendant, crafted from 100% natural, untreated, and undyed Type-A Myanmar jadeite. Hand-carved into an elegant peach shape, this piece showcas...

This is a wonderful and rare 18ct yellow gold suitcase charm from the luxury jewellery designer Tiffany & Co. The suitcase features a diamond, blue sapphire and ruby that are set...

Exquisite 13.5 Carat Trillion Kunzite and Diamond Pendant Necklace. Accented with Diamonds, weighing approx. 0.19tcw. Beautifully Hand crafted 18K White Gold....

Enhance your collection with this exquisite Monica Rich Kosann pendant necklace. Meticulously crafted, it features a circular design adorned with white enamel triangles and a central...

A sculptural pendant featuring a natural aquamarine of 33.7 carats, admired for its soft ocean-blue hue and natural depth of color. Mined in Brazil, the gemstone shows gentle inner m...

Large 18K gold plated silver pendant with natural fine quality Boulder Koroit Opal gemstone origin - Australia gem size is 20 x 32 mm stone weight - 58 carats pendant length - 48 mm ...

Very Delicate Gold Pearl Necklace The necklace is 18K Yellow Gold The Diamond is heart shaped 0.30 Carats E VS The Fresh Water Cultured Pearl is 9.6mm The chain is 18K Yellow Gold an...

Natural White Opal Trillion Cut Pendant in 925 Sterling Silver, Handmade Genuine Opal Jewelry for Women, Statement Necklace Pendant 💎 GEMSTONE TYPE: Opal ⚖️ WEIGHT: 1.15 Grams 🪚 ...

It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural Tanzanite = 3.52 Carats 87 Diamonds = 0.40 Carats Metal: 14K White Gold Dimensions: 24 x 17 x 7 mm Cha...

Comes with Gemological Appraisal by GIA GG/AJP All Gemstones are Natural in Origin Tanzanite: 2.86 Carats Diamond: 0.22 Carats Metal: 14K White Gold Dimensions: 21 x 14 mm

Natural Turquoise Diamond Triangle Pendant Necklace 14 Karat Rose Gold features triangle cut turquoise set in center with diamonds set on the three sides of the triangle, with a soli...

Natural Turquoise Diamond Triangle Pendant Necklace 18 Karat Rose Gold features triangle cut turquoise set in center with diamonds set on the three sides of the triangle, with a soli...

This refined pendant features a 0.60 carat trillion cut aquamarine, set in 925 sterling silver. The center gemstone, measuring approximately 5 × 6 mm, is secured in a classic prong s...

Natural White Opal Trillion Cut Pendant in 925 Sterling Silver, Handmade Genuine Opal Jewelry for Women, Statement Necklace Pendant 💎 GEMSTONE TYPE: Opal ⚖️ WEIGHT: 1.24 Grams 🪚 ...

It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural Tanzanite = 3.52 Carats 87 Diamonds = 0.40 Carats Metal: 14K White Gold Dimensions: 24 x 17 x 7 mm Cha...

This Ilario necklace pairs richly hued lapis lazuli plaques with finely articulated gold links, creating rhythmic geometry and refined contrast. Delicate diamond accents punctuate ea...

A radiant trillion-shaped citrine pendant set in 14K yellow gold, accented with white diamonds. The vibrant golden hue of the citrine is beautifully enhanced by the sparkle of the di...

It comes with the Gemological Appraisal by GIA GG/AJP All gemstones are natural Tanzanite = 3.52 Carats 87 Diamonds = 0.40 Carats Metal: 14K White Gold Dimensions: 24 x 17 x 7 mm Cha...

A rich purple amethyst pendant cut in a fancy trillion shape with a natural diamond halo for a lovely added shine! If you want you can also add a 16-18 inch 0.93 mm gold chain. If yo...

This vintage 18K yellow gold rosary-style drop necklace measures 16 inches and features natural white faceted diamond beads delicately spaced along an 18K yellow gold chain. The clas...

Gorgeous GIA 4.43 ct. purplish red ruby oval cabochon with 0.35 ct. good quality white diamond trillion. Handmade in platinum. Length is 18". GIA certificate included.

A captivating necklace featuring a geometric pendant with a contemporary design. The pendant showcases a trillion-cut rubellite, weighing 2.81 carats, in a vivid red hue. Complementi...

Item Specifications: Metal: 14K Yellow Gold Style: Opal and Diamond Necklace Total Weight: 14.4 Grams Chain Length: ~19" ​ Pendant and Bail Length: ~1.60" Center Gemstone Spec...

Artistic designer necklace by Ling-Yen Jones: This 20-inch necklace features 8.2mm white freshwater pearls and a large oval clasp measuring 44mm x 34mm. The clasp is uniquely designe...