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Sell Gemstones for the Highest Price with Kingsley & Co
At Kingsley & Co, we specialise in the private acquisition of high-value gemstones, offering you top market prices through our discreet, expert-led buying service. Whether you’re selling loose stones, set jewellery, or investment-grade gems, our team of gemmological specialists ensures your gemstones are accurately valued and paid for immediately. Book a confidential appointment today and sell your precious gemstones with complete peace of mind.

Now a good time to sell my gemstones
Global demand for fine gemstones, particularly natural, untreated stones of exceptional clarity, colour, and carat weight continues to rise. With a strong collector and investment market for rubies, sapphires, emeralds, and diamonds, now is an excellent time to unlock the full value of your collection. At Kingsley & Co, we combine in-depth market knowledge with real-time pricing to provide the most competitive offers in the UK.

What We Buy
We purchase a wide range of high-quality gemstones, including:
Natural Diamonds – Loose or mounted, certified or uncertified
Coloured Gemstones – Rubies, Sapphires, Emeralds, Spinels, Alexandrites, Tourmalines
Precious Stones in Jewellery – Rings, earrings, brooches, pendants, and antique settings
Investment Stones – GIA, IGI, or other laboratory-certified gemstones
Estate & Heirloom Gems – With or without original documentation
Whether your stones are loose, set in jewellery, or part of an inherited estate, we’ll assess their quality and value with precision and care.

Our Process is Simple, Secure & Professional
Book a Private Consultation
Schedule an appointment via our website, by phone, or email. We offer both in-person and virtual consultations for convenience and discretion.
Receive a Professional Valuation
Our experts will assess your gemstone(s) based on carat, cut, clarity, colour, origin, and certification—offering you a competitive, transparent price.
Immediate Payment
Once you accept our offer, you’ll receive immediate payment with no hidden fees or deductions.

Frequently Asked Questions
What’s the best way to sell my gemstones?
Selling through high-street jewellers or online platforms often results in undervalued offers. At Kingsley & Co, we use professional gemmological criteria and up-to-date market pricing to ensure you receive the maximum value.
Are gemstone valuations confidential?
Yes. All transactions and valuations are handled privately and securely. We pride ourselves on our discreet and trusted service.
Do I have to sell after a valuation?
Not at all. Our gemstone valuations are complimentary and without obligation. Whether you choose to sell now or later, we’re here to offer expert guidance and insight.
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