About Carat Smart Australia
A wholesale natural diamond supplier based in Perth, Western Australia.
group, which has been sourcing and supplying natural diamonds for over 55 years.
That's the network and experience behind every stone we offer.
We specialise in sourcing and supplying high-quality natural diamonds across all
shapes, sizes and price ranges — with direct access to global diamond markets that
most local suppliers simply don't have.
Get to What You Need, Faster
Choose whichever fits what you're looking for:
I'm in the trade
Wholesale sourcing, certified and non-certified stock, parcel goods, and a global sourcing network for specific requirements.
I'm buying for myself
An engagement ring, a gift, or your own collection — we'll help you find the right diamond without the jargon.
What We Do
We supply a wide range of loose natural diamonds, carefully sourced to meet diverse
requirements across the jewellery industry. Our offering includes:
- Round and fancy shape diamonds
- A broad range of sizes and qualities
- Natural white and fancy colour diamonds
- GIA, IGI, HRD and EGL certified diamonds
- Non-certified parcel goods for commercial and manufacturing needs
Beyond our available stock, we offer tailored sourcing through our global network —
giving clients access to diamonds beyond standard inventory, matched to specific
requirements, specifications and budget.
Why Choose Carat Smart
Global Network, Local Presence
Based in Perth, Western Australia, we work closely with local clients while sourcing
diamonds from trusted suppliers worldwide — through our partnership with
Eran Diamonds, giving access to a broad international inventory most
single-location suppliers can't match.
Visit us at Suite C7, 223 Bagot Road, Subiaco WA 6008 —
get directions →
Our Commitment
We're committed to a professional, reliable and transparent service. Every diamond we
supply is selected with care to meet the standards expected across the industry.
Get in touch and our team will be happy to help.
Contact Our Team →