Diamonds by Avi & Co. Emerald and Oval Cut Diamond Bypass Ring, 18K White Gold

 

As the saying goes, diamonds are a girl’s best friend. But investing in exquisite gemstones does not mean that you have to adhere to tradition. Instead, break free from tradition and discover your own signature style with fun and funky designs here at Diamonds by Avi & Co. A staple of Manhattan’s high jewelry scene, our New York City boutique is the perfect place to find memorable jewelry that matches your own personal aesthetic. Instead of following the crowd, be a trendsetter. All you have to do? Start every jewelry shopping trip at Avi & Co.

Whether you are looking for a premier piece of jewelry for yourself or are shopping for a meaningful and memorable gift for that special someone, our jewelry collection has everything you are searching for and more. From bracelets to earrings and necklaces to engagement rings, our diverse collection caters to countless different styles and preferences. All you need to do now is zero in on the piece that speaks to your personal sensibilities. Will you gravitate toward a sleek and sultry nous trois ring, or will you pick up a perfectly minimalist pendant? No matter what you choose, you can never go wrong with GIA-certified, impeccable diamonds at Avi & Co.

 

Discover Diamonds a Step Above the Rest

What sets Diamonds by Avi & Co. apart from the rest of the fine jewelry world? Our designs are exceptionally creative and unique, showcasing larger-than-life gemstones, unusual settings, and exquisite craftsmanship that exceeds every expectation you might have. Take a look at some of the motivating principles behind our one-of-a-kind pieces that are set to transform your jewelry collection for the better. Which pillar of design resonates with you?

 

Unique Shapes

Here at Avi & Co., we do not just stick to the basic, popular diamond shapes. Of course, we offer the round, oval, and pear-shaped diamonds that have become exceptionally popular for engagement rings, jewelry and more. But our inventory does not end there. We have emerald cut diamonds, marquise cut stones, hearts, trapezoids, and so much more. Playing with shapes and cuts in your diamond jewelry collection can add more interest and flair, upping your confidence every time you wear one of our beautiful pieces out on the town.

 

Stunning Sizes

When you shop for jewelry from Diamonds by Avi & Co., you will quickly discover that we do not shy away from larger-than-life gems. From 20-carat rings to stunning 50-carat yellow diamond necklaces, you will find the very epitome of high jewelry in our three showrooms (find us in New York City, Miami, and Aspen). If you are seeking a diamond that will steal the show, you need to work with a jeweler that is not afraid to shine and stun. Our team at Avi & Co., is your partner in building a jewelry collection for the ages, one that highlights the best, brightest, and biggest gemstones on the market today. Do not sell yourself short.

 

Unconventional Colors

Many people do not realize that the diamonds we typically see every day are called “white diamonds.” Though some people would describe them as translucent rather than white, this diamond shade is the most common in the jewelry world. But did you know that diamonds come in other beautiful hues as well? Other colors of diamonds are known as fancy diamonds and can be found in tones like blue, yellow, green, pink, and red. We love incorporating these rare, little-known gemstones into our pieces to show off another side of the world of high-end jewelry.

Diamonds by Avi & Co. 18K Yellow Gold Fancy Yellow Radiant Cut Line Bracelet, 32.61 CTDiamonds by Avi & Co. 18K Yellow Gold Fancy Yellow Radiant Cut Line Bracelet, 32.61 CT
Diamonds by Avi & Co. 18K Yellow Gold Fancy Yellow Radiant Cut Line Bracelet, 32.61 CT

One-of-a-Kind Styles

We take pleasure in creating unique jewelry styles that you will not find anywhere else. Our creative team plays with mixing diamond shapes, colors, and sizes to craft bespoke pieces that exude exclusivity, taste, and class. Whether or not you want to share the source of your jewelry is up to you, but one thing is for sure: Your collection will be the envy of all of your friends and a treasure that you can pass down for generations to come. That is the power of Diamonds by Avi & Co., your trusted source for all things fine jewelry.

 

Our Favorite Funky Diamonds by Avi & Co. Jewelry

Are you looking for elevated diamond jewelry that is not like the traditional pieces everyone else seems to be wearing? Here at Diamonds by Avi & Co., we specialize in unique creations that set you apart for your sublime personal style and avant garde flair. Our diamond jewelry shows off stunning silhouettes and staggering carat weights paired with unique cuts and even colors of gemstones. When it comes to diamond jewelry, you deserve the best and the brightest. That is exactly what we offer here at Avi & Co.

Explore our favorite unusual and experimental high jewelry creations online or in store. Discover some of our team’s hotly debated choices for the funkiest, most exciting jewelry options that we have available for purchase today. Which one speaks to you?

 

Emerald and Oval Cut Diamond Bypass Ring

Diamonds by Avi & Co. Emerald and Oval Cut Diamond Bypass Ring, 18K White GoldDiamonds by Avi & Co. Emerald and Oval Cut Diamond Bypass Ring, 18K White Gold
Diamonds by Avi & Co. Emerald and Oval Cut Diamond Bypass Ring, 18K White Gold

This emerald and oval cut diamond bypass ring is not your mother’s heirloom jewelry. There is nothing wrong with tradition when it comes to the world’s most coveted gemstones, but here at Avi & Co., we believe that diamond jewelry should showcase your individuality and personality as well. This 18-stone ring features nine emerald-cut diamonds and nine oval-cut diamonds, totaling over 9 carats in all. Its bold and unexpected silhouette wraps delicately around the finger and is the perfect way to demonstrate your trendsetting style.

 

Emerald Cut Diamond Hoop Earrings

Diamonds by Avi & Co. Emerald Cut Diamond Hoop Earrings, 18K White Gold, 16.50 CTDiamonds by Avi & Co. Emerald Cut Diamond Hoop Earrings, 18K White Gold, 16.50 CT
Diamonds by Avi & Co. Emerald Cut Diamond Hoop Earrings, 18K White Gold, 16.50 CT

Hoop earrings are without a doubt among the top jewelry trends of 2026 and are widely considered an exquisite, versatile option that will never go out of style. Adding flawless, GIA certified diamonds to your hoop earrings is the perfect way to elevate a wardrobe staple. These emerald-cut diamond hoop earrings from Avi & Co. show off 16.50 carats of diamonds set in luminous 18K white gold and were crafted with turning heads in mind.

 

Avi & Co. Diamond Choker Necklace

Diamonds by Avi & Co. Emerald Cut Diamond Choker Necklace, 18K White Gold, 84.28 CTDiamonds by Avi & Co. Emerald Cut Diamond Choker Necklace, 18K White Gold, 84.28 CT
Diamonds by Avi & Co. Emerald Cut Diamond Choker Necklace, 18K White Gold, 84.28 CT

If you thought the choker trend was a relic of the past, think again. As fashion cycles reach into previous decades, form-fitting choker necklaces have emerged victorious as a symbol of timeless class and prestige. While you will find everything from fabric chokers to high jewelry marvels on the market today, our collection leans toward the finer things in life. Our statement choker necklace is crafted from 18K white gold and set with 84.28 carats of emerald-cut diamonds for an endless “hall of mirrors” effect. This is a luxe upgrade from the chokers that we were all wearing ten years ago.

 

Nous Trois Diamond Cuff Ring

Diamonds by Avi & Co. 18K White Gold Pear and Oval Cut Nous Trois Diamond Cuff RingDiamonds by Avi & Co. 18K White Gold Pear and Oval Cut Nous Trois Diamond Cuff Ring
Diamonds by Avi & Co. 18K White Gold Pear and Oval Cut Nous Trois Diamond Cuff Ring

Have you ever dreamed of immersing your fingers in a whole collection of diamonds all at once? Our sleek and elegant Nous Trois diamond cuff ring might just make your dreams come true. The 18K white gold bands of this ring lay on the interior sides of your fingers, making the three diamonds appear to be floating between your fingers. Two pear diamonds and one oval diamond create a symphony of flowing shapes and angles with seemingly limitless facets and radiance. The three diamonds together weigh over 18 carats, plus there is an additional 1.45 carats of side stones adding further sparkle and elegance. In short, you cannot err when you add a shimmering Nous Trois ring to your jewelry box.

 

Discover New Looks With Diamonds by Avi & Co. 

Here at Avi & Co., we are proud to have earned the title of Manhattan’s most trusted jewelry seller. In addition to our stellar collection of fine diamond jewelry, we also specialize in luxury watches. Our inventory includes a variety of globally renowned brands, including Richard Mille, Rolex, Patek Philippe, and Audemars Piguet.

We love sourcing these high-end timepieces for our valued customers, but we knew we had something more to add to the horological scene. Since 2023, we have launched a few different striking watch collections of our own. Each one is decorated with precious gems and finely manufactured to exceed the expectations of even the most discerning watch aficionados. Explore the entire lineup of Avi & Co. watches online or in store. At our three boutiques, located in New York City, Aspen, and Miami, you can experience unparalleled luxury in person.

Make an appointment today to shop with us at any one of our three locations. We look forward to giving you a warm welcome into the Avi & Co. family.