Maria K Jewellery has been founded in 2021 by Maria Kostina, who is an Australian award-winning jewellery designer and a GIA Graduate Gemologist. Maria is a trusted jewellery designer with unique set of skills, which gives her the ability to offer unparalleled expertise in creating “one-of-a-kind” and bespoke jewellery pieces just to name a few, such as the treasured engagement rings, wedding bands with any types of diamonds and gemstones all responsibly sourced from trusted sourced! Our team of master stone setters and jewellers who are all under professional quality control of Maria, will work with you to create a truly breathtaking jewellery piece which you will cherish and love for years to come!

Maria’s passion for jewellery and expertise in diamond grading and coloured gemstones will expose you to a wide variety of selection of coloured gemstones and diamonds for your special piece of creation for your bespoke piece of jewellery by creating pieces of wearable art.  

​Having a graduate gemologist hand selecting a wide range of loose coloured stones gives you the confidence to select natural-coloured stones or diamonds of exceptional quality for your special jewellery piece. 

​Our jewellery collections of ready-to-wear pieces include various jewellery designs from one-of-a-kind unique pieces which were created and designed by Maria and all proudly crafted in Sydney to imported pieces all selected and hand-picked by Maria from international designers are brought to you and are all available for you to try on at our Sydney showroom!

Please feel welcome to book your one-on-one, obligatory-free viewing session of the jewellery collections from the calendar below!