The Australian Opal and Diamond Collection

The Australian Opal and Diamond Collection Discover the timeless beauty of Australian opals and diamonds. Shop our exquisite collection now. We have received invitations to host VIP viewings.

We feel that the individuality, quality and Authenticity of our merchandise can never be compromised. With our commitment and professional attitude towards customer service and client relations makes us stand out from the rest. We also pride ourselves on the ability to provide a high-class product at a reasonable price. Our merchandise will promote prestige and quality, adding a touch of colour an

d elegance. The Australian Opal Collection is involved from mining to export, we are therefore able to offer a fine and extensive range of unique merchandise. Royalty
The Australian Opal and Diamond Collection has also manufactured and designed for different Monarchs around the globe, such as HRH Princess Mary of Denmark and HM Queen Sylvia of Sweden. Sylvia Dimasi, Chief Designer at The Australian Opal & Diamond Collection was approached to design a unique piece for Princes Mary to celebrate the birth of her son Prince Christian. This spectacular piece consisted of a Solid Crystal Opal from Mintabie, South Australia, and surrounded in diamonds. This one piece of jewellery converts into three different pieces. World Expositions
AODC was one again recognized by the Australian Federal Government, as being the leader in our industry. Placed on the world stage as the sole Australian promoter and retailer of Opals, Pearls and Diamonds, AODC showcased to over 8 million guests, who came from all over the world to view and purchase our exclusive products. No other Jewellery in Australian history has been chosen to represent its country in two expositions, and being consecutive expositions, shows that AODC are leaders and set president for others to follow. We have had over 12 million guests pass through our showcases around the globe, making AODC the number one Opal, Diamond and Pearl retailer in the world. Our expertise is reflected on the achievements, being highly regarded as innovators and leaders of our industry, by our peers as well as the Federal Government of Australia. We are Members of:
The Australian Opal and Gem Industry Association
Gemological Association of Australia
Jewellers Association of Australia Ltd. South Australia Opal Miners Association
Adelaide Convention and Tourism Authority
Founding Member of The Australian Opal Exchange
Cruise Down Under

VIP Viewings
We have been commissioned by the Federal Government of Australia and state Government of South Australia to design and hand craft unique Opal jewellery for different International heads of State. These include clients such as; Mr. Donald Rumsfeld, King and Queen of Sweden and numerous celebrities from the entertainment world. Our Team
AODC prides itself on the exceptional people that work within the company. All staff members are multilingual with over 10 different languages spoken. They specialize in their various fields and can answer any questions you may have on Opal, Diamonds and Pearls. AODC Guarantee
All of our merchandise has a world wide guarantee and whilst all care will be taken for quality control, any item if faulty will be replaced at no extra cost to the client. All “Investment Opals” will have a certificate of Authenticity and Valuation. This includes a digital image of the piece scanned on to the document, which is then signed by our licensed valuer. All AODC’s Diamonds are Conflict Free.

Some jewels whisper. This one doesn’t.”HighJewellery
16/02/2026

Some jewels whisper. This one doesn’t.”HighJewellery






16/02/2026
Colours of the ocean.Born from the earth. 🩵💙Australian opal — luminous and un
15/02/2026

Colours of the ocean.
Born from the earth.





🩵💙

Australian opal — luminous and un

Colours of the ocean.Born from the earth. 🩵💙Australian opal — luminous and untamed.
15/02/2026

Colours of the ocean.
Born from the earth.





🩵💙

Australian opal — luminous and untamed.

Some moments are too beautiful for words.This is one of them.Happy Valentine’s Day ❤️✨ValentinesDay
14/02/2026

Some moments are too beautiful for words.
This is one of them.

Happy Valentine’s Day ❤️✨ValentinesDay








Some moments are too beautiful for words.This is one of them.Happy Valentine’s Day ❤️✨
14/02/2026

Some moments are too beautiful for words.
This is one of them.

Happy Valentine’s Day ❤️✨








Statement Piece of the WeekFrom the Sylvia Dimasi Signature Collection.An extraordinary composition of ruby, diamond and...
13/02/2026

Statement Piece of the Week

From the Sylvia Dimasi Signature Collection.

An extraordinary composition of ruby, diamond and emerald set in white gold — designed to command attention and captivate from every angle.

A true collector’s piece.

Available at Australian Opal & Diamond Collection.
❤️🌺

Statement Piece of the WeekFrom the Sylvia Dimasi Signature Collection.An extraordinary composition of ruby, diamond and...
13/02/2026

Statement Piece of the Week

From the Sylvia Dimasi Signature Collection.

An extraordinary composition of ruby, diamond and emerald set in white gold — designed to command attention and captivate from every angle.

A true collector’s piece.

Available at Australian Opal & Diamond Collection.

Statement Piece of the WeekFrom the Sylvia Dimasi Signature Collection. ❤️An extraordinary composi...
13/02/2026

Statement Piece of the Week

From the Sylvia Dimasi Signature Collection.
❤️

An extraordinary composition of ruby, diamond and emerald set in white gold — designed to command attention and captivate from every angle.

A true collector’s piece.

Available at Australian Opal & Diamond Collection.

Ocean light.Bare skin.Australian Boulder Opal.Nothing else needed.AustralianOpal
11/02/2026

Ocean light.
Bare skin.
Australian Boulder Opal.

Nothing else needed.
AustralianOpal










Obsessed with this.”💙 💙 💙 💙 💙 💙
07/02/2026

Obsessed with this.”
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Address

14 King William Street
Adelaide, SA
5000

Opening Hours

Monday 9:30am - 5:30pm
Tuesday 9:30am - 5:30pm
Wednesday 9:30am - 5:30pm
Thursday 9:30am - 5:30pm
Friday 9:30am - 5:30pm
Saturday 10am - 4pm

Telephone

+61882119995

Website

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