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Sydney Jewellery Designer

Work with a jewellery designer based in the CBD of Sydney. Engagement rings, wedding rings, statement earrings, necklaces, and fine jewellery can all be personally designed and crafted for you or your loved one. Explore our engagement ring settings, ready-made one-of-a-kind pieces, gemstones, and jewellery collections online or book an appointment for a consultation at our studio.

Engagement Rings


Award Winning Jewellery Designer

As an award-winning jewellery designer, Maria offers a personalised experience. Consultations can be booked online.

Мееt with Maria personally to discuss your Custom Design for your next creations.

Maria K Jewellery offers Free jewellery design Consultations without any obligations

Our Showroom is located in the heart of Sydney where you can meet in a private setting or we can organise a video call meeting to have a chat.

Custom Jewellery Design

Unique jewellery designed and made in Sydney

I would love to create your dream piece of jewellery come true as I believe that anything is possible.

As a gemologist, I can source and recommend suitable gemstones to create unique jewellery pieces. 3D CAD designs that generate photo realistic renderings are created and refined before the piece is created. You’ll be consulted during the process and will be part of the custom jewellery design process.

We can start a design for you from any way you prefer – have you got a favourite gemstone in your collection or perhaps an idea which you’d like to bring to life? Then contact Maria by filling out the below Contact Form or Call to book your free design consultation by calling 0481 357 691  and let’s get it started bringing your dream custom design jewellery piece to life! Consultations are by appointment in person in our Sydney showroom located in the CBD.

Meet Maria

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!