Frequently Asked Questions

Diamond Gallery Co is a premier jewellery retailer with over 30 years of experience, specialising in exquisite jewellery pieces made in Australia, including engagement rings, wedding bands, earrings, bracelets, and pendants.

Our showroom is located in Sydney, Australia. We welcome you to visit and explore our stunning collection in person. Book an appointment

Yes, we offer free delivery on all orders within Australia, ensuring a seamless shopping experience.

We sell both lab-grown and natural diamonds, carefully selected to meet the highest standards of quality and brilliance.

We offer diamonds in the D, E, F, G, H, and I colour ranges, representing the highest grades of diamond colour quality for exceptional brilliance.

We only supply diamonds with VVS, VVS1, VS1, and VS2 clarity for all our engagement rings, ensuring virtually flawless diamonds with maximum brilliance.

Yes, all our diamonds, both lab-grown and natural, are sourced from suppliers who adhere to strict ethical standards.

Yes, all our diamonds come with a grading certificate, by the most trusted grading report companies in the world.

Yes, we offer custom jewellery design services. Our skilled designers can help bring your vision to life, whether you have a specific design in mind or need guidance.

Yes, you can modify any of our existing designs. Our expert CAD designers will assist in creating your perfect piece.

If you are not completely satisfied with your purchase, you can return it within 14 days for a full refund or exchange. Please refer to our return policy page for more information.

We offer a lifetime manufacturing guarantee against manufacturing faults.

You can reach our customer service team via email at or by phone at 1300 112 751. We are here to assist you with any questions or concerns.

Delivery times vary depending on the order and stock availability. Diamond only orders take up to 10 working days, while orders including a ring mount take around 5 weeks.

Yes, once your order is ready to be shipped, we will send you a tracking number. All Orders will be sent in a discreet box.

Yes, you can collect your order in-store by notifying our sales team. Please bring your invoice and two forms of identification. Orders can be collected from our Sydney or Melbourne Showrooms.

Yes, we provide in-store cleaning and polishing services for all Diamond Gallery Co jewellery. Your first polish and rhodium plating are free, with future services available for a small fee.

Yes, we offer engraving on specific products. Contact us for more information or select your options at checkout.

We accept major credit cards, PayPal. For more details, please visit our payment information page.

Please refer to our returns, refunds, and exchanges policy in our terms and conditions, or contact us at or call 1300 112 751.


Find Your Perfect Diamond

Explore our extensive collection of natural and lab-grown
diamond engagement rings.


Find Your Ring Size

Australia Internal Diameter /
Circumference (mm)​
13.9 / 43.6
F 1/2
14.1 / 44.2
14.3 / 44.8
G 1/2
14.5 / 45.5
14.7 / 46.1
14.9 / 46.7
15.1 / 47.4
I 1/2
15.3 / 48
15.5 / 48.7
J 1/2
15.7 / 49.3
15.9 / 49.9
K 1/2
16.1 / 50.6
16.3 / 51.2
L 1/2
16.5 / 51.8
16.7 / 52.5
M 1/2
16.9 / 53.1
17.1 / 53.8
N 1/2
17.3 / 54.4
17.5 / 55
O 1/2
17.7 / 55.7

How To Measure

  1. Grab a tape measure, length of string or strip of paper.
  2. Wrap it around the finger you'll wear your ring on—if you’re creating a ring stack, consider where on your finger the ring will sit—and mark the place where it joins.
  3. Lay your string or paper strip on a flat surface and use a ruler to measure the length up to the mark. Use the chart above to match the measurement to the closest ring size.
  1. Choose a ring that already fits your finger well.
  2. Measure the interior diameter of the ring in millimeters (mm).
  3. Use the measurement chart above to match the size of your ring to the closest size in mm.

Diamond Gallery At Your Service

Our client care experts are always here to help.

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Complimentary Shipping & Returns

Diamond Gallery offers complimentary shipping for any item that you’d like to return.

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