At Harper Jewellery, we source and craft exceptional diamonds — both GIA-certified natural diamonds and IGI-certified lab-grown diamonds — offering Australia’s most compelling balance of quality, integrity, and value.

As your personal Diamond Dealer and Private Jeweller, I work directly with leading international cutters and master jewellers to secure only the finest stones, selected for brilliance, proportion, and long-term beauty. Every diamond — natural or lab-grown — is chosen deliberately, never generically, and priced with complete transparency.

Each bespoke creation is a reflection of you: refined, distinctive, and entirely personal. From timeless tennis pieces to one-of-a-kind heirlooms, every design is individually considered and meticulously brought to life under my close direction.

There are no limitations to what we can create. Whether you are seeking a specific carat weight, a rare natural diamond, an exceptional lab-grown stone, or a particular metal finish, every detail is individually sourced, refined, and hand-finished to the highest standard.

Operating from my private showroom in Mosman, Sydney, I personally oversee each stage — from diamond selection to final polish — ensuring a flawless result that transcends expectation.

You will work exclusively with me throughout the entire journey, for a discreet, concierge-level experience defined by expertise, craftsmanship, and trust.

To arrange a private consultation at our Mosman showroom, or to request a tailored quotation, please contact me on 0410 926 446 or complete the form below.

We remain at your service.

Yours sincerely,
Angela
Founder & Diamond Dealer
Harper Jewellery Australia