Natural loose gemstones
VST works with natural coloured gemstones across some of the most demanding colour and clarity standards in the trade, connected to sourcing networks that extend well beyond Hong Kong into the world’s leading gemstone-producing regions. Every stone is selected for colour, clarity, and consistency, giving buyers a dependable foundation to build designs around.
Our sourcing spans paraiba tourmaline, aquamarine, tanzanite, jade, onyx, sapphires, emeralds, and rubies, alongside rarer varieties such as spinel, alexandrite, and padparadscha sapphire.
Each stone is evaluated for authenticity and quality before it’s offered, certified by GIA or IGI based on client requirement, with clear disclosure on treated versus non-treated stones.
Colour Matching and Size Calibration
Stones hand-matched for tone and clarity, and calibrated to precise sizes for coordinated sets.
Treated & Non-Treated Stones
Clear distinction between treated and natural, untreated stones, disclosed upfront.
Rare & Fancy Varieties
Access to less-common calibrated stones like spinel, alexandrite, and padparadscha sapphire.
Beyond ready parcels, we accommodate specific sourcing requests, whether it’s a particular shade, cut, or rarer gemstone variety, developed to match the exact requirements of your collection.
It’s a sourcing process built to keep pace with a buyer’s changing needs, order after order, without losing consistency along the way.
Categories We Manufacture
Crafted across precious metals, diamonds,
gemstones, and natural materials.
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Fastrack Men’s Watch
$1,225.00 -
Blackrock Men’s Watch
$999.00 -
Iceberg Men’s Watch
$764.00 -
Roman Men’s Watch
$1,064.00
Natural Diamond Jewellery
Natural Loose Diamonds
Natural Coloured Gemstone Jewellery
Natural Loose Gemstones
Frequently Asked Questions
We are here to make your experience clear and reliable. Below are answers to the questions we’re asked most frequently by our trade partners and clients.
What does VST specialise in?
VST specialises in natural diamonds and natural coloured gemstones, offering bespoke design and private-label manufacturing in gold, silver, and platinum.
Where does VST manufacture its jewellery?
Production takes place across our houses in Hong Kong, China, and India, with each stage shaped by quality checks and meticulous finishing.
Is there a minimum order quantity (MOQ)?
Our MOQs are shaped by design complexity and stone usage rather than a fixed volume, so smaller businesses and boutique brands can start with realistic order sizes alongside larger production runs.
What services does VST offer, and can it help develop a jewellery design from scratch?
Our services include design consultation, custom design, gemstone sourcing, and private-label manufacturing, covering OEM, ODM, white-label, and contract manufacturing. Our in-house design team also supports clients from original concept through CAD modelling, sampling, gemstone finalisation, and production-ready designs.
Does VST provide certified gemstones?
Yes. Stones are sourced through trusted global networks and certified for authenticity, with certification available from GIA or IGI depending on client requirement.
Does VST participate in jewellery trade shows?
Yes. VST takes part in leading jewellery trade shows, including JGW (Jewellery & Gem World) in Hong Kong, where we showcase our latest designs and connect with buyers, retailers, and manufacturers.
Does VST ship internationally?
Yes. VST supports clients across international jewellery markets, including Hong Kong, China, India, the Philippines, and beyond, though specific shipping timelines vary by order and destination.
How can I get in touch with VST?
You can reach us via email at VSTDIAMONDS@GMAIL.COM or by phone at +852 9757 1525. Our main office is located at Unit K, 711, 7/F, Block A, Focal Industrial Centre, 21 Man Lok Street, Hung Hom.