Tiwari Groups International connects international buyers with verified coloured gemstone dealers, cutters and polishers in Surat, Gujarat — the same manufacturing base that has made Surat globally significant for diamond cutting, and one that also supports a well-established coloured gemstone trade alongside it. If you are a jewelry brand, wholesaler or private label buyer looking to source rubies, emeralds, sapphires or semi-precious stones from India, this page explains our sourcing approach and what to expect from us as a partner.
Gemstone categories we source
We work with dealers and cutters across the coloured gemstone categories most in demand from international jewelry buyers.
Rubies
Cut and polished ruby stones sourced and graded through our Surat gemstone network.
Emeralds
Natural and treated emeralds in a range of clarity grades, sourced to your specification.
Sapphires
Blue and fancy-colour sapphires for jewelry manufacturing and private label programs.
Semi-Precious Stones
Amethyst, citrine, garnet, topaz, aquamarine and other semi-precious varieties.
Loose Stones for Jewelry Setting
Certified loose gemstones supplied to jewelry manufacturers and brands who set them independently.
Certified & Graded Stock
Gemstones with recognised gemological certification, with treatment status (heated, unheated, or otherwise treated) clearly disclosed.
Looking for a specific gemstone variety, cut or origin? Send your specification and we'll confirm what our network can supply.
Why buy gemstones from India
India has a centuries-old gemstone cutting and trading tradition, and Surat’s gemological infrastructure — built around its diamond industry — extends naturally into coloured gemstone dealing, with IGI’s Surat laboratory certifying coloured gemstones alongside diamonds. Buyers typically source from India for competitive factory-direct pricing, a wide variety of stones available through one network rather than scattered dealers, and access to gemological certification and treatment disclosure in one place.
Business models we support
Loose stone supply for jewelry manufacturers
We supply certified loose gemstones — per your variety, cut, colour and clarity specification — for buyers who set stones themselves or work with third-party manufacturers.
Private label & branded jewelry programs
For brands wanting finished jewelry rather than loose stones, we coordinate with jewelry manufacturing partners to combine gemstone sourcing with setting, under your branding.
Bulk & wholesale supply
For wholesalers and distributors ordering at volume, we negotiate factory-direct pricing and consistent grading and disclosure standards across repeat orders.
Custom specification sourcing
Tell us your target variety, carat range, cut and colour, plus budget — we source matching certified stones rather than working from a fixed catalogue.
Certification, treatment disclosure & quality control
Coloured gemstones are frequently treated (heat treatment, oiling, irradiation) to enhance colour or clarity, and treatment status materially affects value — we require full treatment disclosure from every dealer in our network and pass that disclosure to you unchanged, rather than presenting treated stones as untreated. Where available, stones carry independent gemological certification. Every order goes through our documented quality control process — stone verification against certification and disclosed treatment, in-line checks during any setting work, and final inspection before shipment.
MOQ, lead time & pricing
Gemstones are priced and ordered per stone or per carat rather than by a fixed MOQ — pricing depends on variety, origin, treatment status, cut and current market rates, so we don’t publish flat pricing. Lead time for loose certified stones is typically faster than manufactured goods; jewelry-setting programs add the manufacturing timeline of the jewelry unit involved. Send your specification and target budget and we’ll return a sourcing quote with certification and treatment details.
Export, shipping & countries served
We export gemstones to buyers across North America, the UK, EU, Middle East, Australia and Asia, handling secure shipping, export documentation (including gemological certification and treatment disclosure) and customs coordination through to your destination. See our full sourcing and export process for how an order runs start to finish.
Why buyers choose Tiwari Groups International
Because we operate as the trading name of a registered Indian company, Wickbond Private Limited, every contract, invoice and shipment carries the accountability of a verifiable legal entity — and we disclose gemstone treatment status accurately rather than leaving buyers to discover it later. Read more about our company and sourcing strength.