Cullen

Cullen

Direct-to-consumer ethical lab-grown jewellery

Overview

Cullen Jewellery makes fine jewellery in Melbourne using ethically sourced lab-grown gemstones such as diamonds, moissanite, and sapphires. Customers order through a direct-to-consumer model online, with bespoke, made-to-order pieces and personal support via virtual appointments and physical showrooms; stones are carbon-neutral and certified by IGI and GIA. The brand differentiates itself with clear sourcing, ethical practices, and social responsibility, plus a hybrid online-offline approach that serves a global market. Its goal is to disrupt traditional jewellery by delivering affordable, high-quality, ethically sourced pieces at scale while expanding its international footprint and continuing its social initiatives.

About Cullen

Simplify's Rating
Why Cullen is rated
C+
Rated C on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Social Impact

Design

Consumer Goods

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

N/A

Founded

2018

Get referred to Cullen

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Cullen added San Diego in 2026 and already operates five US showrooms.
  • The company keeps launching demand-capturing content in 2026 around men's rings and coloured gemstones.
  • International showrooms and BNPL widen conversion for expensive engagement-ring purchases.

What critics are saying

  • ABC on 2026-08-29 said Australian lab-grown diamonds reached 50-60% retail share.
  • Wholesale lab-grown prices fell 13% year-over-year in JCK's 2026-07 report.
  • New York, Vancouver, and Manchester openings still pending on 2026-09-03, straining execution.

What makes Cullen unique

  • 2026 showrooms span Australia, New Zealand, the US, London, Toronto, and San Diego.
  • Cullen sells only lab-grown diamonds, moissanite, and sapphires with made-to-order customization.
  • Its 2026 finance page integrates Humm, Zip, Afterpay, and Klarna checkout options.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Flexible Work Hours

Wellness Program

Employee Discounts

Recently Posted Jobs

Sign up to get curated job recommendations

Cullen is Hiring for 10 Jobs on Simplify!

Find jobs on Simplify and start your career today

Don't see your dream role? Check out thousands of other roles on Simplify. Browse all jobs →