Brilliant Diamond

Brilliant Diamond 24 +


Generations of experience in hand-making fine jewellery, dealing in diamonds and also in buying fine gemstones and finished jewellery from around the world.

Are you after a special ring for yourself or a loved one? 

Services offered:

  • Jewellery design
  • Hand made jewellery
  • Diamond grading
  • Valuations
  • Pearl jewellery for brides

We are a family with generations of experience in hand making fine jewellery, dealing in diamonds and buying fine gemstones & finished jewellery from around the world. We are jewellery designers and can help with the creation of a custom piece just for you. We are sure that you will not find a more comprehensive “one stop shop” anywhere!

We also provide personalised valuation certificates for insurance purposes, with cover under written by QBE insurance globally for all of our hand made pieces.


I am part of a family with generations of experience in hand-making fine jewellery, dealing in diamonds and also in buying fine gemstones and finished jewellery from around the world. Now a qualified Australian Gemmologist (F.G.A.A.), holder of a Diploma of Diamond Technology (DipDT), Diamond Grader (HRD Qualified & GAA Qualified) and a registered valuer with both the NCJV & AAJV I am the youngest ever Diamond grader/Technologist, and the youngest ever registered valuer (NCJV – NSW division).

Masis Agopyan

Business Owner


Service Area Australia-wide


2 reviews 5.0 Write a Review

February 2016

My new husband received some excellent advice about diamonds & rings and had an amazing engagement ring made for me. Our wedding bands were also perfect and were both exactly what we asked for. Thanks so much for making the process a breeze.

Tahli S.

Brilliant Diamond

Our pleasure Tahli. We're so happy you love your rings. Congratulations to you both!

January 2016


Latifa B.

Expert Advice

expert advice

As a wedding professional, Brilliant Diamond offers expert advice to help couples plan their perfect day. Ask a question or read their expert advice.

Get Expert Advice

What gemstone shape reflects the most light?

Brilliant Diamond

The best of all is generally the round brilliant cut, as it reflects about 5-6% of all light entering it. This is true for most stones, Diamonds, Cubic Zirconias & Moissanites.
The reason for this, is that from MOST angles, the light entering will pass through a similar amount of gemstone material (for example Carbon in the case of a diamond), and as such, the beams of light that enter, have a good chance to come out from the table & shoulders of the gemstone (kite facets etc), at an optimal rate, there is a certain mathematical beauty in how the design of the modern round brilliant was originally conceived. Please note, a "PERFECT" round brilliant cut does not actually exist, as NOWHERE in the original plans for the modern round brilliant cut diamond, put down by Tolkowski when he created this cut, was there any mention of any GIRDLE. The "perfect" diamond should have knife edge girdle according the original specifications, this will however be very hard to find, so the best bet for the modern consumer is to ensure you have the best crown angle, pavillion angle, and crown + pavillion depth, in order to maximise the brightness of the stone. If you have further questions, feel free to ask.
Kindest regards,


How many prongs do you suggest, 4 or 6?

Brilliant Diamond

This really depends on size & taste. Generally speaking, if the diamond is smaller, 4 claws is suggested, if the diamond is large (about 0.70ct+) then people often suggest 6 claws, for the sake of safety, 6 claws is definitely superior. 

What are some ways I can personalise my wedding band?

Brilliant Diamond

The most common & simplest is generally having some engraving done on the inside of the band. This is fairly simple & not overly expensive, also fairly quick.


Tips from our specialists

Just need a quote?
It helps to provide...

  • Your contact details
  • Mention your wedding date and the style of jewellery you require
  • Ask if they are available to design an item for you
  • Ask how far in advance you need to place an order

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