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The Lumière Stud Size Guide: 1 CT, 1.5 CT, or 2 CT?

3 min read

Diamond jewellery editorial

See the three sizes on the ear

The same ear, each Lumière stud at its real size. CT total is the weight of the pair; each diamond is half.

  • Lumière Stud 1 CT total weight on an earlobe
    1 CT total weight0.50 ct per diamond, about 5 mm
  • Lumière Stud 1.5 CT total weight on an earlobe
    1.5 CT total weight0.74 ct per diamond, about 5.9 mm
  • Lumière Stud 2 CT total weight on an earlobe
    2 CT total weight1.01 ct per diamond, about 6.5 mm

This is a product-specific comparison of the three existing Lumière Stud sizes at Carat Theory. Instead of a general sizing chart, use the actual per-stud diameter to see how the collection steps up from refined to more noticeable sparkle.

At a glance: carat weight and diameter

Choose 1 CT for a refined everyday scale

The Lumière Stud 1 CT measures 5 mm per stud, making it the most understated option in the collection. Choose it when you want an easy daily pair for workwear, weekends, and a minimalist jewelry rotation.

Choose 1.5 CT for a balanced step up

The Lumière Stud 1.5 CT measures 5.9 mm per stud. It adds visible presence without moving as far into statement territory, making it a strong middle choice for someone who wants classic studs with a little more emphasis.

Choose 2 CT for the most noticeable scale

The Lumière Stud 2 CT measures 6.5 mm per stud, the largest diameter in this Lumière comparison. Choose it when you want a stronger focal point around the face, a dressed-up everyday look, or a memorable milestone gift.

How to choose your Lumière size

  1. Start with diameter. Choose 5 mm for a quieter look, 5.9 mm for balanced presence, or 6.5 mm for more visual emphasis.
  2. Match your usual jewelry scale. The best size is the one that feels natural beside what you already wear.
  3. Use the IGI reports for confidence. Review the linked reports, then visit the product page for the available metal options and specifications before choosing.

FAQs

Can I see the earrings on a video call before deciding?

Yes. Reach out to us on WhatsApp or email us to schedule a video call. We can show you the earrings and answer questions about size, metal, and overall appearance before you decide.

Can I pay for expedited delivery?

If you need your order by a specific date, reach out on WhatsApp or email before placing your order. We will confirm whether paid expedited delivery is available for your destination and share the cost before you proceed.

What is the difference between yellow gold and white gold?

Both options are 14K gold. The yellow gold version has a warm yellow band with white prongs, creating a subtle two-tone contrast: the white prongs blend into the diamond while the yellow band adds warmth. White gold gives a cooler, more continuous white-metal look around the stone. Choose the finish that best matches the jewelry you already wear.

Is the carat weight total for the pair or for each stud?

The 1.0 CT, 1.48 CT, and 2.02 CT figures refer to the total carat weight for the pair, not the weight of one individual stud. The listed 5 mm, 5.9 mm, and 6.5 mm measurements are the diameter per stud, and each earring has its own IGI report.

Are the Lumière diamonds lab-grown?

Yes. All three Lumière sizes feature round brilliant lab-grown diamonds in E-F color and VVS 2 clarity, set in 14K gold.

Can I verify the IGI reports?

Yes. The comparison above links to the two IGI reports associated with each size, so you can review the reports before choosing your pair.

Which Lumière size is best for everyday wear?

For a quieter daily look, start with 1 CT. Choose 1.5 CT if you want balanced presence, or 2 CT if you prefer the most noticeable scale of the three options.

There is no single right answer. The Lumière collection gives you three clear points of scale, so you can choose the pair that feels most like you.

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