Jewelry Store · Austin, Texas, United States

Cullen Jewellery

Jewelry specializing in engagement rings with lab-grown diamonds, moissanite, and colored sapphires, with showrooms in the United States and online sales with international shipping.

About Cullen Jewellery

Cullen Jewellery: engagement rings with lab-grown diamonds

Cullen Jewellery is a jewelry company focused on selling engagement rings and wedding bands made with lab-grown diamonds, moissanite, and colored sapphires. The company combines an online catalog with a network of showrooms where it serves clients exclusively by appointment.

Setting styles and collections

The engagement ring catalog is organized by setting styles: solitaire, three stone, halo, toi et moi, bezel, and east-west. The brand presents the east-west style as a design that redefines modern bridal aesthetics. Among the best-selling models featured on the website are Emma, Bella, Francesca, Imani, Sheridan, and Paige.

In addition to engagement rings, the company sells women's and men's wedding bands, and fine jewelry pieces such as rings, earrings, bracelets, chains, and pendants. Wedding bands can be filtered by metal (platinum, yellow gold, rose gold, white gold, tantalum, and carbon fiber) and by style (classic, multi-color, unique, pavé, curved, and accented).

Materials: lab-grown diamonds, moissanite, and sapphires

The company works with lab-grown diamonds, which it describes as chemically and physically identical to mined diamonds, with the same brilliance and fire. It offers lab-grown diamonds in round, oval, pear, emerald, radiant, cushion, marquise, elongated hexagon, princess, asscher, heart, and elongated cushion shapes, as well as fancy colored lab-grown diamonds in all shapes and sizes.

It also sells moissanite, which it presents as a lab-grown gemstone with its own clarity, durability, and brilliance, distinct from a simulant. The brand notes that it uses specialized equipment to distinguish moissanite from diamond and ensure transparency in the purchase. It also offers lab-grown sapphires and a gemstone guide.

Buying process and customization

The buying process can be completed online or through a showroom appointment, where the client can explore gemstone shapes, carats, and compare designs. The company offers the option to customize a unique ring and assigns a specialist to accompany the client throughout the process. For those who need the ring urgently, there is a Ready-to-Ship selection of already-made rings, which are resized and shipped within one business day.

Crafting a custom ring typically takes 35 business days, with expediting options available. The exact completion date is indicated on each product page and does not include shipping.

Shipping, warranties, and after-sales services

Cullen Jewellery offers free insured express international shipping on orders over $500, and covers duties and taxes in most countries. The company warns that shipping details cannot be changed once the order is confirmed.

Rings, including engagement, wedding, and fashion rings, come with a lifetime warranty against manufacturing defects. Other fine jewelry pieces, such as earrings, chains, pendants, and bracelets, have a two-year warranty. The brand also offers free resizing and free ring customization.

Showrooms and international presence

The company operates showrooms in the United States, with open spaces in San Francisco, Houston, Los Angeles, Austin, and San Diego, and plans to open a showroom in New York, with private access and by appointment only. In Australia and New Zealand, it has showrooms in Melbourne, Sydney, Brisbane, Adelaide, Perth, and Auckland. Showroom visits are exclusively by appointment.

Initiatives and sustainability

Among the initiatives the company declares are carbon neutrality, collaboration with Trees For The Future, and gold recycling. The brand also mentions carbon-neutral lab-grown diamonds, whose carbon generated during their growth and manufacturing is offset through verified sustainability initiatives.

Educational content and resources

The site includes guides on how to choose an engagement ring, design basics, the 4Cs of diamonds, precious metals, ring sizes, ring care, moissanite, gemstones, and lab-grown sapphires. It also publishes a blog called The Cut, dedicated to trends, style, and love.

In brief

Engagement rings with lab-grown diamonds