1 stoneYellow topaz weighing 0.40 ct, emerald cut. Precious and semi-precious stones are commonly treated to improve their colour and clarity. This item has not been tested in this regard. The gold quality hallmark stamp is not possible to do because there is no space for it, however the jewel is endorsed by the manufacturer with its history of seriousness and good work. The shipment is insured. New and unused. Available for pickup. Shipping via registered mail. Shipping cost includes theft insurance cost.