Natural Ametrine 20.69 ct – Violet/Yellow, Octagonal Cut, AGR Certified

Every Sosna Gems gemstone undergoes careful expert inspection before shipping and is delivered in a tamper-proof Gemstone Security Seal to protect its authenticity and origin.
Each piece includes an authenticity certificate, confirming its natural origin, authenticity, and key gemological characteristics – weight, cut, color, and clarity.

Some gemstones in our collection already come with a valid certificate from an international gemological laboratory– such as GIA, IGI, or another globally recognized institution.
These gemstones are clearly marked in our catalog and ready for immediate dispatch.

If you wish, we can arrange independent laboratory certification for other gemstones as well – either before or anytime after purchase.
Our gemologists will be happy to assist you in choosing the most suitable laboratory and explain the entire process.

For more details about our certification standards and the laboratories we work with, please visit Gemstone Certification page.

Shipping Options

• Standard Shipping (7–14 business days) – Free, fully insured and trackable.
• FedEx Express (2–5 business days) – $35 for orders under $1000, free for orders above $1000.
• Delivery to physical addresses only (no P.O. Boxes or military addresses).

Returns & Refunds

• Loose gemstones may be returned within 14 days of delivery in original, unaltered condition.
• Customized cuts or special orders are non-returnable.
• Returned items must include all original documentation and packaging.
• Refunds processed within 3–7 business days after receipt.
• Full return process may take up to 3–4 weeks.

For any questions regarding shipping, returns, or certification, please contact our customer service or gem concierge team.

• Store gemstones separately in soft pouches or boxes to prevent scratches.
• Avoid contact with harsh chemicals, perfumes, and extreme temperatures.
• Keep away from pools, saunas, and seawater — some gemstones are porous and may absorb liquids.
• Clean gently with lukewarm water and a drop of mild soap; dry with a soft cloth.
• Do not use ultrasonic or steam cleaners unless approved by a professional.
• For valuable or rare gemstones, professional inspection and cleaning are recommended.

By following these simple steps, you will help preserve the beauty and brilliance of your Sosna Gems gemstone for years to come.

Standard Packaging (included)

• Certificate of authenticity 
• Elegant protective box
• Gemstone care guide
• Polishing cloth

Premium Packaging (optional)

• Luxury wooden display box
• Personalized certificate folder

All gemstones are delivered sealed in a Gemstone Security Seal for verified authenticity.

Schedule a personal or online consultation with a Sosna Gems gemologist.
Our experts will guide you through gemstone and jewelry collections, assist with certification options, and help you select the perfect piece.

Limited appointments available — reserve your spot today.

BOOK NOW