Osia International is a Hong Kong ODM fine jewellery manufacturer and diamond wholesaler since 1992, with an Australian office in Sydney. We supply approved trade accounts — retail jewellers and chains — with private-label and catalogue jewellery in gold, silver and platinum, plus certified diamonds.
We do not sell to the public.
Sydney office
- Osia International (Pacific)
- Suite 109, 250 Pitt Street, Sydney, NSW 2000
- Phone (612) 8095-9780
- aus@osiaintl.com
Hong Kong remains the headquarters (Unit 9D, 8 Hart Avenue, Tsim Sha Tsui). Kuala Lumpur is the Malaysia office. All three offices serve trade clients only. About Osia → · 联系我们 →
What Australian retailers can order
- Private-label, ODM and OEM jewellery in 9K–22K gold, 925 sterling to 960 Argentium silver, and Pt900–Pt950 platinum.
- Bridal, diamond and colourstone lines, managed end-to-end with our partner workshops and factories.
- Certified natural and lab-grown diamonds (GIA, IGI or HRD). Wholesale lab-grown diamonds →
- No minimum order on custom and private-label jewellery work.
- This page covers Osia's full trade range for Australian retailers; we do not highlight individual catalogue lines here.
How it works for an Australian store
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申请贸易账户。
大多数账户可在数个工作日内获批。 应用 →
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Brief the work.
Send a private-label brief, or choose ODM catalogue designs to adapt with your brand stamp. You can also supply your own design (OEM). 贴牌 → · ODM vs OEM →
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Approve on 3D CAD.
There is no physical sample stage before production.
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Production and quality control.
Casting is done in our partner production factories. Stone setting is done either locally in Hong Kong or at our partner workshops and factories, depending on the job. Every piece is checked at factory level and again by Osia before dispatch, including diamond testing in in-house QC. 生产制造 →
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Delivery.
In-stock catalogue orders typically ship in 3–7 business days. Fully bespoke pieces from CAD typically take 25–45 business days. Repeat private-label orders typically take 3–4 weeks for a simple piece, or 4–5 weeks for a more complicated piece. Shipments go by DHL Express or FedEx, insured for full declared value. 运费 →
GST, import duties and shipping terms for Australia are quoted on request. 联系我们 →
A 50% deposit starts made-to-order production, with the balance due before shipment.
Who we are (honest production model)
Osia is the accountable manufacturer of record, not a broker and not a factory owner. We design and specify every piece and manage production end-to-end with partner workshops and factories, with in-house quality control and testing equipment. The Sydney office is for local trade clients; it is not a consumer showroom and not an Australian factory.
FAQ
Do you have an office in Australia?
Yes. Osia International (Pacific) is at Suite 109, 250 Pitt Street, Sydney, NSW 2000. Phone (612) 8095-9780; email aus@osiaintl.com.
Do you supply gold jewellery wholesale to Australian retailers?
Yes, as part of our trade-only ODM and private-label fine jewellery supply, including 9K–22K gold.
Are you a factory in Australia?
No. Design, specification and quality control are managed by Osia. Casting and production run through our partner workshops and factories in Hong Kong and mainland China, with a Sydney office for local trade clients.
Is there a minimum order?
No minimum order, including custom and private-label work.
Can consumers buy from Osia in Sydney?
No. Trade accounts only.
生产需要多长时间？
In-stock catalogue orders typically ship in 3–7 business days. Fully bespoke work from CAD typically takes 25–45 business days. Repeat private-label orders typically take 3–4 weeks for a simple piece, or 4–5 weeks for a more complicated piece.
How are GST, import duties and shipping terms handled for Australia?
Quoted on request for Australian trade accounts.
如何开始
Contact the Sydney office or apply for a trade account.