Certified Diamond Network

Natural Blue Diamonds: Rare Blue Diamond Price, Identification Brokerage Service & Custom Blue Diamond Jewelry

Blue Diamond Is A Type Of Diamond That Exhibits All Of The Same Inherent Properties Of The Mineral Except With The Additional Element Of Blue Colour In The Stone


The Rarest Loose Blue Diamonds For Sale Exclusively At The Certified Diamond Network

Certified Diamond Network is committed to matching each customer with the most beautiful blue diamonds for sale. We’re all about helping our customers get peace of mind when making a blue diamond investment. At Certified Diamond Network, you’re always assured when you purchase blue diamond jewelry or a natural blue diamond gem from us; all our loose blue diamonds are sourced within international consumer protection standards.

We understand that not everyone has access to the highest quality and most fancy coloured diamonds possible. That’s why we only sell loose blue diamonds GIA certified and vetted by true experts to guarantee diamond quality and eliminate worry. You can trust that any loose blue diamonds purchased from us are natural, conflict-free and mined responsibly by trained employees who work in safe environments. If you are looking for the perfect centrepiece blue diamond gem for your jewellery piece, pick out something unique from our fancy intense blue diamond collection today! Call us any time at (02) 9689 3396 or browse through our website for more details on the most spectacular natural blue diamonds for sale in Australia.

Read More Read Less
Argyle Blue Diamond Halo Engagement Ring

Let The Experts At The Certified Diamond Network Identify & Help You Buy Blue Diamonds With Expert Advice

Have you always dreamed of owning a fancy intense blue diamond but can’t afford them? Our blue diamond gem specialists at Certified Diamond Network provide clients with personalised help and expertise unavailable anywhere else. Our team of diamond professionals is available to guide you through every step of your fancy intense blue diamond purchase process, from selecting the perfect loose blue diamond centre stone to a custom blue diamond setting it into a piece that reflects your style.

We feel blessed to be allowed to provide stunning famous blue diamonds in designs that are breathtakingly different from anything else out there. Rest assured that you’re getting your money’s worth when you buy blue diamonds from us because we guarantee our blue diamond’s value is what we say it is. As part of our lifetime policy, you can book an inspection with our vetted jeweller and a genuine diamond expert, Edward Swaab. Are we looking to buy natural blue diamonds for sale? Trust only Certified Diamond Network, as one of the largest blue diamond brokers in Parramatta, NSW.  Stop in and allow Certified Diamond Network’s experts to help guide you in selecting the perfect fancy deep blue diamond today!

Loose Blue Diamond Buyers Guide

Blue Diamonds Are One Of The Rarest Diamond Varieties In The World

Are you looking to buy blue diamond gemstones for your engagement ring? Even a 1 carat blue diamond has that special allure, and for a good reason – they’re rarer than any other gem. In fact, there are only three mines in the world where they can be found: the Cullinan mine in South Africa, Begley Mine in Australia, and Golconda mine in India. Blue diamonds boast a fancy intense blue that mesmerises with its expressive colour. The rarity of the fancy intense blue diamond makes it an object of beauty in their own right. These fancy coloured diamonds are something that can only be described as breathtaking, and that will set your heart aflame at the very thought of owning a diamond of such rare quality. Contact us today to find out the blue diamond price per carat!

Fancy intense blue diamonds belong to a subcategory of coloured diamonds, and there is good reason to believe that these would be a scarce variety. Here at Certified Diamond Network, we aim to bring you luxury jewelry at a fraction of the cost. Get your one-of-a-kind loose blue diamond now before it’s out of stock!

Natural Blue Diamonds Are Only Mined In Australia, South Africa, And India

Diamonds are one of the most luxurious and fascinating gems on earth. But why stop at just owning an ordinary diamond? Own blue diamond rings with such rich history and rarity! Blue diamonds are among the most expensive and sought-after jewels on earth. This scarce blue gem is found deep in mines in just three countries on earth – Australia, India, and South Africa. They account for only about one in every ten thousand, or 0.01% of mined diamond production each year. Natural blue diamonds rarity is compounded by their intense hue, which makes them incredibly captivating. Fancy deep blue and fancy vivid blue diamonds cost far more than fancy light blue diamonds.

Here at Certified Diamond Network, all of our natural diamonds come with a certificate stating their provenance, so you know they are naturally coloured and not synthetically produced. Our vast collection of exquisite loose blue diamonds for sale has been hand-cut to ensure maximum brilliance and size. Then hand-inspected at every step by our expert gemologist before getting sent off to you. We are globally recognised as a true diamond expert with an international presence, capable of finding the perfect diamonds and other hard-to-find gems for anyone’s budget and taste. Buy a 1 carat blue diamond and choose the ideal size, clarity, cut, and colour for your engagement ring or next jewelry addition!

Read More Read Less

Natural Blue Diamonds Are Formed Over Millions Of Years With High Levels Of Boron Which Creates The Blue Tint

The most coveted of all gemstones are the natural loose blue diamonds. You can rarely find a fancy intense blue diamond. They have been historically hard to produce because their colouration comes from exposure to boron within the earth’s crust, which takes millions and millions of years to form. Those deposited boron molecules form an element that gives the natural blue diamond gem its predominantly indigo colouration.

Blue diamonds are rare, and for this reason, they take on an even greater symbolic value than white diamonds. When it comes to making a purchase, quality is always best. Don’t be fooled by counterfeit diamonds that have been artificially irradiated to mimic the blue tint of natural loose blue diamonds. Unlike these artificial knock-offs, a natural blue diamond will last forever and remain as enticing as the day you first laid eyes on them. It’s why we’re thrilled to offer these beautiful loose blue diamond stones that were mined, highlighting their exquisite but understated colour. Surprise your loved one with a dazzling gift that will never go out of style! Buy blue diamond jewelry that embodies carefree extravagance and timeless glamour when it comes time for a decadent gift or occasion.

Read More Read Less
Blue Diamond Dress Ring

Intensity Levels Of Natural Blue Diamonds

Note that not all blue diamonds are mined equal: some fancy colour diamonds are more intense than others which is why we carefully hand-pick each blue diamond gem out of thousands to ensure they meet the highest quality. The intensity levels of any natural loose blue diamond are based on the depth of hue, saturation, and colour intensity.

The more intense the diamond blue colour denotes a higher level of pure crystal colour saturation. For example, one of the purest blue diamonds known is the hope diamond, popularly known for its great size and the clarity of its deep blues. This remarkable blue diamond gem origin may be humble, but its weight and its beauty made it one of the most coveted gemstones of all time.

Although blue is the dominant colour, a natural blue diamond gem can sometimes have shades of greyish blue and green-blue, caused by their nitrogen impurities. The least intensely coloured diamonds are registered as Faint Blue, then Light Fancy Blue, Light Blue, followed by Fancy Intense Blue, Fancy Deep Blue, and Fancy Vivid Blue. But this does not make them “synthetic or treated blue diamonds”, which is a common misconception. If you check the 3 carat blue diamond price range, for example, Certified Diamond Network can provide you with the best options. We have access to the best natural blue diamonds for sale in the world and can help you find exactly what you’re looking for. Check out our catalogue for the very best loose blue diamonds GIA certified and vetted by true experts!

Read More Read Less

The Blue Diamond’s Rarity Plays A Huge Role In Price

The Gemological Institute of America has studied millions of diamonds from around the world. Only two in every 10,000 diamonds mined are blue, so their scarcity makes them expensive, heavily influencing the blue diamond price per carat. For instance, a rare blue diamond price ranges from $100,000 to $200,000 blue diamond price per carat and more depending on the cut, clarity, colour, and carat weight.

Blue diamonds represent the pinnacle of true blue colour and luxury. We only source the finest, most beautiful natural-mined fancy colour diamonds in the world. For couples with extravagant tastes looking for unique blue engagement rings without compromise on quality and craftsmanship, we offer a rare diamond blue colour gem to experience the same multi-faceted beauty like no other. All of our natural blue diamonds for sale are natural colours that have not been artificially enhanced through irradiation or other treatments. Let these stylised fancy coloured diamonds adorn your wrist, neckline, or fingers with true extravagance. Shop now while supplies last!

Loose Blue Diamond Valuation And Blue Diamond Carat Price

The determination of the rare blue diamond price is highly subjective and will depend on many factors including, but not limited to the following:

Colour – The lighter the shade of a blue diamond, the less expensive the blue diamond price per carat. The colour-grading scale includes Faint Blue, Fancy Light Blue, Light Blue, Fancy Blue, Fancy Intense Blue, Fancy Deep Blue, and Fancy Vivid Blue.

Cut – A diamond’s brilliance depends on the number of sharply defined, major surfaces or facets it has. The more intricate the cut, the more brilliant the blue diamond gem is and the higher the blue colour.

Clarity – A blue diamond’s clarity grading is a system for categorising the level of transparency in diamonds. The scale ranges from “Flawless” to “Included”.

Carat Weight – A 1 carat blue diamond will cost upwards of $10,000, whereas a 3 carat blue diamond price will cost upward of $30,000.

If you’re looking to buy blue diamonds, there is no better place to go than Certified Diamond Network!

Arrange An Appointment In Parramatta To View Our Extensive Collection Of GIA Certified Loose Blue Diamonds For Sale

At Certified Diamond Network, we know that buying a diamond blue colour gem for your engagement ring is an emotional experience. From the moment you walk into our showroom and see the array of fancy intense blue diamond stones on display to the time your diamond is carefully set in place by one of our skilled craftsmen; we want you to feel confident that this purchase will be one of the most important decisions you make in your lifetime. That’s why we take such care with every detail – from choosing only GIA-certified loose blue diamonds for sale at competitive prices to providing complimentary consultations with our on-site gemologist before any purchase. We also offer free shipping worldwide, so it won’t cost anything extra or add days to delivery!

To make your search easier for beautiful loose blue diamonds or the best blue diamond rings, we have arranged an appointment in Parramatta with our friendly staff who will be happy to show you our extensive collection and discuss with you the blue diamond cost. If you cannot visit us in person, please email or call us, and we will be happy to assist!

Questions & Answers

Loose Blue Diamonds For Sale FAQs


The most expensive gemstone, and the rarest gem of all, is a natural blue diamond. There are a limited number of blue diamonds available to the jewellery trade, making it somewhat difficult to source these stones. The rarity of production of these blue stones is very small, which significantly impacts the blue diamond cost ranges. They are thought to occur only two times out of 10,000 mined diamonds. Natural blue diamonds costs vary depending on size, grade and cutting details. They get their fancy blue hue from a particular chemical impurity called boron. For the most reasonable blue diamond carat price, contact Certified Diamond Network today!


To date, the most expensive gemstone is the natural blue diamond, with a world-record blue diamond price per carat at $3.93 million prices per carat. There are not many high-quality pure blue diamonds on the market, which drives their price up. And since they’re so valuable and few, they make incredibly unique centrepieces for unique blue engagement rings or elaborate blue diamond jewelry pieces.


Yes, there are natural blue diamonds. Though rare, loose blue diamonds are not impossible to find.

Loose blue diamonds can be found in nature; they’re formed under high heat and pressure deep below the Earth’s surface during the process of natural diamond crystallisation. However, they can also be synthesised artificially. Lab treated blue diamonds include high-pressure and high-temperature treatments that create a “fancy vivid blue” colouration to the blue diamond gem. Some of these naturally coloured famous blue diamonds can be worth tens of times higher than their white diamond counterparts. Here at Certified Diamond Network, we only work with natural, untreated loose blue diamonds. Quality is our number one concern for both stones and buyers—visit us today to learn more about your blue diamond jewelry options!


The one test you can do for any loose blue diamond is the fog test. Place the jewel on your finger close to your mouth and exhale some warm air onto it, periodically moving it back and forth. A real natural blue diamond gem will remain brilliant even after many passes of warm breath. If the diamond’s appearance gets misty after a while, then that is a lab-created diamond.

The water test is a way to determine whether or not your diamond is synthetically set. This can be done by carefully dropping the loose blue diamond in a glass of water and waiting to see if the diamond sinks or floats; if they float, it’s real; if they sink, then it’s most likely not authentic.