Carateu Diamond Concierge

Selecting a loose diamond can involve thousands of listings, technical grading reports and subtle differences that are difficult to judge from specifications alone.

The Carateu Loose Diamond Concierge offers personal guidance from our team, including a Graduate Gemologist based in Stockholm. We help you identify a strong natural or lab-grown diamond based on your budget, preferences and what matters most to you visually.

The Carateu Loose Diamond Concierge is a personalised selection service for customers who would like expert help choosing a loose natural or lab-grown diamond. It is not a price-checking service or an unlimited diamond-search service.

Already have a diamond certificate number?

Use our Diamond Lookup to check whether a particular IGI, GCAL or GIA-certified diamond is currently listed in our inventory.

If a matching diamond is available, its current Carateu price—including VAT—is displayed directly on the website.

Check a diamond certificate

How our loose diamond concierge works

1. Tell us what you are looking for

Share your preferred diamond shape, approximate carat or dimensions, natural or lab-grown preference, budget and the qualities that matter most to you.

2. We assess the available options

Our team reviews suitable diamonds using their grading information, proportions, value and expected visual appearance.

3. Receive a curated recommendation

Rather than sending a long list of certificate matches, we select a small number of the strongest available candidates we would be comfortable recommending.

How we can help

  • Choosing between natural and lab-grown diamonds
  • Understanding GIA, GCAL and IGI grading reports
  • Comparing up to three diamonds listed by Carateu
  • Balancing size, quality and budget
  • Assessing cut, proportions and expected visual character
  • Identifying strong value within the available inventory
  • Selecting a loose diamond for an engagement ring or fine-jewellery project
  • Reserving an available diamond while you consider your purchase

Preferences, not just numbers

You are welcome to share preferred proportions, measurements or other specifications. We consider these as part of your overall brief rather than treating every number as a strict sourcing requirement.

Certificate information is an important screening tool, but it cannot fully predict how a diamond will look. Our recommendations combine grading information with gemological judgement, visual priorities and the available inventory.

If you would like to refine our initial selection, the most helpful feedback concerns appearance—for example, preferring a more elongated shape, a different size or less visible bow-tie—rather than a new list of certificate parameters.

Expert verification before delivery

Every diamond offered by Carateu is independently certified and verified before shipment.

Your diamond is gemologist inspected in Stockholm, Sweden and checked against its grading report, certificate number and identifying characteristics before being released for delivery.

Orders are shipped from within the European Union, with VAT handled upfront and no unexpected import duties for customers within the EU.

Looking for a completely custom ring?

The Loose Diamond Concierge is intended for customers seeking help selecting a loose diamond.

If you would like Carateu to create a fully bespoke ring around your ideas, inspiration and budget, please submit a custom-design request instead.

Request a bespoke custom ring

Frequently asked questions

Can Carateu check the price of a diamond I found elsewhere?

Use our Diamond Lookup and enter its IGI, GCAL or GIA certificate number. If the diamond is listed, its current Carateu price—including VAT—will appear on the website.

Can I provide specific proportions or measurements?

Yes. We consider them as preferences within your overall brief, but we do not guarantee a diamond matching every numerical parameter.

How many diamonds will Carateu recommend?

We provide a small, carefully curated selection of the strongest suitable options rather than an exhaustive list of certificate matches.

Can the concierge help me design a custom ring?

The concierge is for loose-diamond selection. For a completely custom ring, use our Bespoke Ring Request form.

Request loose diamond guidance

Complete the form below and tell us what you are looking for. Our team typically responds within one business day.

Do not use the concierge form for price or availability checks. Enter the IGI or GIA certificate number in our Diamond Lookup to see whether the diamond is listed and view its current Carateu price.

Contact Carateu Concierge 

This form is for personalised loose-diamond guidance. For price or availability checks, use our Diamond Lookup.

1. Your details
2. Your diamond preferences
3. What matters most to you?

Select up to three priorities.

4. Diamonds you are considering

You may share up to three Carateu diamond links. For a price or availability check, use the Diamond Lookup instead.

5. Additional information

By submitting this form, you agree that Carateu may use the information provided to respond to your request. See our Privacy Policy.