Guide To Buying An HPHT Diamond

HPHT diamonds are becoming increasingly popular and with good reason! With numerous benefits, including cost and color variety, many choose HPHT diamonds for their most precious jewelry pieces. Is an HPHT diamond the right match for you? Tune in to learn more as we delve into what HPHT diamonds are, the treatment process, and their authenticity in our ultimate guide. 

What Are HPHT Diamonds? 

At London Gold, our HPHT diamonds are real, natural diamonds that have undergone a High-Pressure High-Temperature process to enhance their color. The treatment turns a naturally brownish diamond into a whiter, more beautiful diamond. Because the diamond is originally brown, the treated diamond is still less expensive than if it were naturally found with white color. The high pressure and 2300 degrees Celsius mimic the temperature of the Earth’s core and is a non-invasive, permanent process so that the beautiful results will last.

Are HPHT Diamonds Real?

London Gold proudly carries only real, natural diamonds created by Mother Nature that have been HPHT treated. Some jewelers will sell laboratory-grown or synthetically-created diamonds that also undergo HPHT treatment, so it is vital to be aware of what you’re buying. 

Do HPHT Diamonds Come With A GIA Certificate?

Yes! The Gemological Institute of America, the most respected authority in diamond grading, recognizes HPHT diamonds and considers the process non-invasive and permanent. Since there is no way to see if a diamond has been treated, having a diamond grading report from an independent lab like GIA is crucial. As part of its grading process, GIA tests all diamonds for treatments; if the diamond were treated, it would be disclosed on the certificate. At London Gold, we provide you with a GIA certificate so you can buy confidently.

Why Buy An HPHT Diamond?

People want to buy the biggest, best diamond at a reasonable price. HPHT diamonds are a great option because they are natural diamonds, come GIA certified, and allow you to enjoy a bigger, more beautiful diamond at a fraction of the cost.

What Is The Difference Between An HPHT Diamond and Non-HPHT Diamond?

Non-HPHT diamonds and HPHT diamonds are both real, natural diamonds. The difference is in the treatment. As an HPHT diamond is treated with extreme heat and pressure, the color will be enhanced and improved. You will be able to find non-HPHT diamonds with the same color as HPHT diamonds, but you'll see a significant difference in the cost!

How Can I Tell If A Diamond Has Been HPHT Treated?

Diamonds are emotionally symbolic, and you want to know if your diamond has been HPHT treated. Sellers are required to tell you if your diamond is HPHT treated so that you know what you are buying. Gemologists can detect HPHT diamonds using special detection equipment, and GIA includes any diamond treatment in its reports. Because there is no way to see if a diamond has been treated, having a diamond grading report from an independent lab like GIA is essential.

Can All Diamonds be Treated with HPHT?

No. Less than 1% of all diamonds are suitable for HPHT treatment. In fact, HPHT treatment can only be used on diamonds with good clarity (typically, VVS2) because a diamond with inclusions can crack due to extremely high pressure. This means your HPHT diamond was unique to begin with and born with impeccable clarity!

Explore our gorgeous HPHT diamond options at London Gold! We have a plethora of loose HPHT diamonds for you to choose from so you can customize your next jewelry piece with elegance.