Lab Necklace

The marquise cut diamond solitaire pendant necklace by Avianne & Co. features a single IGI certified lab grown marquise diamond set east-west on a solid gold cable chain. The marquise cut is one of the most distinctive diamond shapes in fine jewelry — its elongated, pointed silhouette maximizes carat weight visibility, giving the stone a larger face-up appearance than round or princess cuts at the same size. Each pendant is handcrafted at Avianne & Co. in New York's Diamond District, where the company has been designing and building custom diamond jewelry since 1999.This pendant is available in two setting styles. The prong setting holds the marquise diamond with four gold prongs that lift the stone above the chain, allowing light to enter from all angles for maximum brilliance and fire. The bezel setting encases the diamond in a slim gold frame engraved with the Avianne name on the back — a sleeker, more protected design built for everyday wear without sacrificing visual impact.Available in 10K and 14K gold in yellow, white, and rose. Each pendant comes on a matching 18-inch cable link chain, with a 16-inch option available upon request. Choose from 1 carat, 2 carat, or 3 carat lab grown diamonds — all IGI certified, graded F color or better with VVS clarity.DETAILS: Diamond Shape Marquise Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

The elongated cushion cut takes the classic cushion shape and stretches it into a rectangular silhouette with softly rounded corners. The result is a diamond that looks noticeably larger per carat than a standard cushion — the elongated proportions spread the stone's surface area across a wider profile on the chest. This pendant features a single IGI certified lab grown elongated cushion diamond on a solid gold cable chain, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Elongated Cushion Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

Emerald Cut Diamond Solitaire Pendant NecklaceThe emerald cut is defined by its rectangular shape and long, parallel step-cut facets that produce bold, mirror-like flashes of light rather than the scattered sparkle of a brilliant cut. Set east-west on a solid gold cable chain, the emerald's wide horizontal profile sits flat against the chest for a clean, architectural look. This pendant features a single IGI certified lab grown emerald cut diamond, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Emerald Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

The asscher cut is one of the rarest shapes seen in pendant jewelry — a square step-cut diamond with cropped corners and layered facets that produce a mesmerizing hall-of-mirrors effect. Unlike brilliant cuts that scatter light into small sparkles, the asscher draws the eye straight into the center of the stone with broad, clean flashes. Each pendant features a single IGI certified lab grown asscher diamond on a solid gold cable chain, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat diamonds — all IGI certified, F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Asscher Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

Radiant Cut Diamond Solitaire Pendant NecklaceThe radiant cut merges the elegant outline of an emerald cut with the brilliant faceting pattern of a round — producing a rectangular diamond with cropped corners and exceptional sparkle. Unlike the emerald's step-cut flashes, the radiant's 70 facets scatter light into intense, scattered brilliance across the entire stone. Set east-west on a solid gold cable chain, the radiant's elongated shape sits horizontally for maximum visual presence. This pendant features a single IGI certified lab grown radiant diamond, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Radiant Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

Princess Cut Diamond Solitaire Pendant NecklaceThe princess cut is the most popular square diamond shape — a brilliant-cut with sharp, uncut corners and up to 76 facets that produce intense sparkle rivaling the round brilliant. The square silhouette gives the princess cut a contemporary, geometric look on the chain while maximizing light return from every angle. This pendant features a single IGI certified lab grown princess diamond on a solid gold cable chain, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Princess Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

Pear Cut Diamond Solitaire Pendant NecklaceThe pear cut diamond combines the rounded end of an oval with the pointed tip of a marquise, creating a teardrop silhouette that has been a staple of fine jewelry for over five centuries. With 58 brilliant-cut facets, the pear shape delivers the same fire and scintillation as a round brilliant but in a form that elongates visually and draws the eye downward — making it one of the most natural shapes for a pendant. This pendant features a single IGI certified lab grown pear diamond suspended from a solid gold cable chain, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Pear Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

Oval Cut Diamond Solitaire Pendant NecklaceThe oval cut diamond is a modified brilliant with 58 facets arranged in an elongated elliptical shape. The stretched proportions give the oval a larger face-up appearance per carat than a round brilliant while maintaining the same level of fire and sparkle. Set east-west on a solid gold cable chain, the oval sits horizontally across the neckline for a modern, balanced silhouette. This pendant features a single IGI certified lab grown oval diamond, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Oval Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

Heart Cut Diamond Solitaire Pendant NecklaceThe heart cut diamond is one of the most technically demanding shapes to produce — requiring precise symmetry between both lobes and a clean, defined cleft at the top to achieve the iconic silhouette. When executed well, the heart shape carries the same 56–58 facet structure as a round brilliant, delivering strong fire and sparkle in a shape that carries unmistakable meaning. This pendant features a single IGI certified lab grown heart cut diamond on a solid gold cable chain, handcrafted by Avianne & Co. in New York's Diamond District.Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Heart Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

The cushion cut combines the soft rounded corners of a pillow shape with brilliant-cut faceting that delivers exceptional fire and sparkle. Sometimes called the "pillow cut," this shape has been one of the most sought-after diamond cuts for over two centuries — offering a warmer, more romantic look than a round brilliant with more visual depth than a princess cut. Each pendant features a single IGI certified lab grown cushion diamond on a solid gold cable chain, handcrafted by Avianne & Co. in New York's Diamond District. Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat diamonds — all IGI certified, F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Cushion Cut Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

Round Brilliant Diamond Solitaire Pendant Necklace The round brilliant is the benchmark of diamond cutting — 57 or 58 precisely angled facets engineered to return the maximum possible amount of light back to the eye. No other diamond shape matches the round brilliant's combination of fire, brilliance, and scintillation, which is why it remains the most purchased diamond shape worldwide. This pendant features a single IGI certified lab grown round brilliant diamond on a solid gold cable chain, handcrafted by Avianne & Co. in New York's Diamond District. Available in prong and bezel settings across 10K and 14K yellow, white, and rose gold. 18-inch cable link chain with a 16-inch option upon request. Choose from 1, 2, or 3 carat IGI certified lab grown diamonds — F color or better, VVS clarity. Prong Setting Bezel Setting DETAILS: Diamond Shape Round Brilliant Diamond Type Lab Grown (IGI Certified) Diamond Color F+ Diamond Clarity VVS Carat Weight Options 1 Carat, 2 Carat, 3 Carat Setting Options Prong (4-prong), Bezel (Avianne engraved) Metal Type 10K & 14K Solid Gold Metal Options 10K Yellow, 10K White, 10K Rose, 14K Yellow, 14K White, 14K Rose Chain Style Cable Link Chain Length 18" (16" available upon request) Closure Lobster Clasp Certification IGI Certified Includes IGI Certificate, Free Appraisal, Insured Shipping

This 14K gold lab diamond cluster pendant necklace features a seven-stone flower cluster design with a 0.50 carat center stone surrounded by six accent diamonds, all suspended from an 18-inch bezel-set diamond chain. The 13mm pendant delivers the visual impact of a significantly larger single stone through the cluster arrangement — one of the most effective ways to maximize face-up size at a given carat weight.At 5.4 grams and 2.30 carats total weight of lab grown diamonds, this necklace sits in the sweet spot between everyday wearability and statement sparkle. The bezel-set chain diamonds add continuous brilliance from the clasp to the pendant. Available in yellow, white, and rose gold with chain lengths from 16 to 22 inches. Free insured shipping on every order.DETAILS: Item Code PND0047L Diamond Carat Weight 2.30 Cwt Diamond Type Lab Grown Diamonds Diamond Clarity VS2 Diamond Color G, H Metal Color Based on Gold Color Selection Metal Type 14K Gold Item Weight 5.4 Grams Pendant Size 13mm Closure Lobster Clasp

This lab grown diamond tennis necklace delivers 39 carats of prong-set round brilliant diamonds across a 22-inch 14K gold frame — a serious amount of diamond coverage for a single-row tennis chain. At 66 grams the necklace carries real weight on the neck, and the four-prong basket setting on each stone allows maximum light entry for consistent sparkle from every angle.Available in yellow, white, and rose gold across multiple lengths ranging from 16 to 28 inches. Diamond carat weight and gram weight scale proportionally with each length option. Lab grown diamonds are chemically and optically identical to natural diamonds at a fraction of the cost per carat. Free insured shipping on every order.DETAILS: Item Code TCH0047 Diamond Carat Weight Based on Chain Length Diamond Type Lab Grown Diamonds Diamond Clarity VS1 Diamond Color F Metal Color Based on Gold Color Selection Metal Type 14K Gold Item Weight Based on Chain Length Closure Slide-In Clasp with Safety Latch

This 10K two-tone gold Panthere necklace is a one-of-a-kind statement piece — custom-designed panther head links connected by fully diamond-set bars with colored gemstone accents throughout. The alternating gold tones create a layered, high-contrast look that separates this chain from anything in a standard catalog. At 113.3 grams and 30 carats of lab grown diamonds in the 22-inch length, this necklace carries real weight and presence on the neck.Every link is individually crafted with detailed panther head sculpting and set with lab grown diamonds across the face and sides. The colored stone accents add depth and visual variety that make the piece read as true custom jewelry. Available in multiple lengths ranging from 16 to 28 inches with diamond carat weight and gram weight scaling proportionally. Handcrafted at the Avianne & Co. workshop in New York's Diamond District.DETAILS: Item Code CH0071-22.5 Diamond Carat Weight Based on Chain Length Diamond Type Lab Grown Diamonds Diamond Clarity VS1 Diamond Color F Metal Color Two-Tone Metal Type 10K Gold Item Weight Based on Chain Length Closure Box Clasp