Cornelia Mullen
If you’re looking to buy a loose diamond, you’ll have more control over your final jewellery item. You’ll be able to see the quality of the stone, determine what shape you like and make decisions around what jewellery style you’d like to place the diamond into.
Searching for “compra diamantes de laboratorio sueltos” can help Spanish customers find a loose diamonds that have been independently graded. Lab grown diamonds have the same basic chemical and physical properties as mined diamonds.
Why Buy A Loose Diamond?
While a ready-made ring will have the diamond set into the setting, this can restrict your options.
By buying a loose diamond, you will know the individual qualities of the diamond. This means you can choose what metal you’d like the diamond to be set into.
This can be especially useful for engagement rings. Some customers may want to create a bespoke piece and would like an oval diamond set in platinum, whilst others may want a round diamond set in yellow gold.
The loose diamond can also help you compare your grading reports and measurements.
What To Look For When Buying Loose Diamonds?
Diamonds can come in many different qualities. Using the 4 Cs can help guide you to understand why some diamonds of similar appearances may have different prices.
Cut
How a diamond is cut can affect how the light passes through it. If a diamond has been cut to perfect proportions it will have a nice shine with colourful scintillation.
Round brilliants are a popular choice due to the facet pattern being specifically designed to give a high level of light performance.
Oval, pear, emerald and cushion cuts will all give you different looks. Emerald cuts tend to give you large scintillation and crisp lines. Whereas brilliants generally tend to give you smaller scintillation.
Colour & Clarity
Diamonds with no colour will fall within the D-F range. Near colourless diamonds will fall within the G-J range.
It can be hard to see the difference in diamonds from adjacent grades.
VS1 and VS2 diamonds can make a lovely choice if the inclusions are not easily seen without magnification.
Take a look at the actual diamond and grading.
Lab Made Diamonds
Diamonds can be grown using two well known methods.
High Pressure High Temperature – This mimics the high pressure and temperatures of diamond creation.
Chemical Vapour Deposition – This uses carbon containing gasses to grow the diamond material.
Both methods can create real diamonds. However this does not mean that it will have a great colour, clarity or cut.
When comparing lab made diamonds, focus on the overall qualities of the diamond, independent grading and appearance.
Diamond Certification
A certification report will give you important information about the diamond.
The International Gemological Institute (IGI) will provide you with a report detailing the lab grown diamond and any relevant measurements and grades.
The Gemological Institute of America (GIA) launched their Premium and Standard grading system for colourless to near colourless lab grown diamonds in October 2025.
As these are not the same, it is important to know what the lab use for their terminology.
You can check the report number using the official verification tool on the lab. If there is a laser inscription on the stone you can also check the identification details under magnification.
A grading report will tell you about the diamond. It doesn’t guarantee it will hold its value when reselling.
Where To Compare Loose Diamonds In Spain
When buying valuable gemstones online, it is important to know what specification the diamond has.
Novita Diamonds will be a good specialist to look at if you’re in Spain and looking to research lab grown diamonds and jewellery.
When comparing diamonds from a specialist like Novita Diamonds, look at what certification details they have, measurements, images and any terms and conditions.
The measurements can be especially useful for longer diamonds. Two oval diamonds with the same carat weight could look very different depending on their length to width ratio.
Choosing a jeweller that knows about bespoke settings will help.
Carat Weight
Carat weight is the weight of the diamond. How the diamond has been proportioned will affect how big it looks from above.
If you’re looking at diamonds with similar grades but slightly different weights, the heavier diamond may not look significantly bigger when set.
Your overall jewellery budget should include the centre diamond, setting, precious metal, craftsmanship and any relevant postage costs.
When researching Novita Diamonds, you can use the above points to help you compare different options based on what you want your finished piece to look like.
Delivery & Returns
If you’re buying in Spain, check if VAT is included in the price and if insured delivery is offered.
Generally, EU consumer law states you have a 14 day cooling off period for eligible online purchases. However, bespoke items and those that are obviously personalised will not apply.
A loose diamond may have different return conditions to a bespoke ring.
Before ordering, ensure you know what the seller’s returns policy is, what certification they have, what delivery they offer and how they handle bespoke jewellery.