A lab-grown diamond is a diamond, created using advanced technology that replicates the natural diamond formation process. A lab-grown diamond shares the same carbon structure, chemical composition, and brilliance as a mined diamond.

The creation process begins with a diamond seed placed in a sealed chamber heated to around 800°C. Carbon-rich gases are introduced, breaking apart and bonding to the seed, layer by layer. The result is a diamond with the same scintillation, fire, and brilliance as one formed deep within the earth.

Yes, lab-grown diamonds are completely real. They are chemically and physically identical to mined diamonds. In fact, the Federal Trade Commission (FTC) has updated its definition of a diamond, removing the word "natural," and the Gemological Institute of America (GIA) evaluates them using the same grading standards as natural diamonds.

The only difference between mined and lab-grown diamonds lies in their origin. Lab-grown diamonds are created in controlled conditions, ensuring a transparent supply chain and a significantly reduced carbon footprint. So much so that it is impossible to distinguish between lab-grown and mined diamonds with the naked eye.

Unlike most mined diamonds, lab-grown diamonds contain no nitrogen in their crystal lattice, classifying them as Type IIa—the purest diamond type. This rarity is remarkable, as only 5% of natural diamonds achieve such purity.

Lab-grown diamonds, like natural diamonds, are evaluated based on the globally recognized 4Cs established by the Gemological Institute of America (GIA): carat weight, color, clarity, and cut.

• Carat Weight: Carat measures the weight of a diamond, not the size. With one carat equaling 0.2 grams, which is the universal standard for diamond measurement.
• Color: Color refers to the natural tint of a white diamond. Diamonds are graded on a scale from D (colorless) to Z (light yellow or brown). Higher grades indicate greater rarity and value.
• Clarity: Clarity assesses the presence of imperfections, or inclusions, visible under 10x magnification. Fewer inclusions result in higher clarity and brilliance.
• Cut: The cut refers to a diamond's symmetry, proportions, and polish, which significantly influence its sparkle and interaction with light.

At Celestia, we use only the finest lab-grown diamonds, Type IIa, with VS+ clarity and DEF color for exceptional brilliance.

At Celestia, our lab-grown diamonds are produced in partnership with renewable energy-powered labs and then expertly designed and handcrafted in state-of-the-art facilities in India.

Every round diamond of 0.7 carats or more comes with an International Gemological Institute (IGI) certificate. This independent certification provides an in-depth analysis of your diamond's 4Cs—color, clarity, carat, and cut—along with additional information, making it a trustworthy identity card for your diamond.

Celestia's diamonds meet the highest standards with F+ color and VS+ clarity, ensuring exceptional beauty and quality.

Lab-grown diamonds, though sometimes called synthetic due to their man-made origin, are genuine diamonds. Unlike cubic zirconia and moissanite—both diamond simulants—lab-grown diamonds share the same carbon structure as natural diamonds. Cubic zirconia is made from zirconium dioxide, and moissanite, a natural mineral, lacks the defining characteristics of a diamond.

Once your order is confirmed, we ship it within 48h if in stock, or our artisans start to craft your custom-made piece.

Celestia offers complimentary worldwide shipping to the EU, UK and United States. Please note that we do not deliver to PO boxes, hotels, or campuses, as we ask for a signature to make sure your jewelry arrives safely.

Celestia collaborates with the world’s most trusted couriers - DHL and FedEx, - to ensure your order reaches you safely. For EU shipments, all import duties and taxes are included in the final price, meaning no additional charges upon arrival. For other destinations, please refer to local import tax and duty regulations.

Your shipment is fully insured and requires a signature upon delivery. Please note that insurance coverage ends once the parcel is delivered and signed for.

Celestia strives to deliver in-stock items within 5 to 7 working days. Since most of our jewelry is made to order, some pieces may take up to 4 weeks to ship. Be sure to check the product page for availability
and estimated delivery times.

Engagement rings may take up to 6 weeks to ship.

In a hurry? Contact us at info@celestiafinejewelry.com, and we’ll do
our best to expedite the process.

Once your jewelry is packed and ready to ship, we will send you an email with your tracking number. If your order shows as delivered but you haven’t received it, please contact us at info@celestiafinejewelry.com with your order number, and we will sort it out.

We can update your order as long as it hasn’t been shipped. Reach out to us at info@celestiafinejewelry.com with your order number and updated delivery address as soon as possible.

Our team processes all standard shipments within 3-5 business days. Once your order is dispatched, you will receive an email with shipping and tracking details. If you haven’t received this email or encounter any issues, please contact us at info@celestiafinejewelry.com.

Exchanges: If you’ve found something else you love, we can arrange an exchange for pieces that are intact. Exchanges are available for an item of equal or greater value. You will just need to cover the return shipping for the original item, delivery of the new one, and any price difference if needed.

To proceed with an exchange, please contact us at info@celestiafinejewelry.com

Refunds: We want you to feel 100% confident in your purchase. However, please note that we cannot accept returns or offer refunds for our bespoke and customized jewelry, as each piece
is uniquely made just for you.
Refunds are exclusively available to the original purchaser, issued to the payment method used for the initial purchase. Refund processing may take up to 14 days from the receipt of the returned product.

To request a refund, please contact us at info@celestiafinejewelry.com

Conditions: Items must be returned in perfect condition, in their original packaging, and include the receipt and all accessories such as boxes, booklets, tags, and protective elements.

We take pride in the exceptional quality of our manufacturing, but if you're not satisfied with any aspect of your Celestia jewelry, please don't hesitate to contact us at info@celestiafinejewelry.com.

At Celestia, we take quality seriously! All jewelry goes through a thorough assessment to make sure it’s perfect. To be eligible for a refund or exchange, items must be in unworn condition—damaged or soiled pieces showing signs of wear won’t be accepted. We’ll let you know if your return passes the assessment. Please note that bespoke or engraved jewelry are not eligible for exchange or refund.

If you'd like to exchange your item for a different product or size, just reach out to to us at info@celestiafinejewelry.com within 14 days of receiving your order. Keep in mind, exchanges can only be made once, and personalized or engraved items are not eligible for exchange or refund.

We accept the following payment methods: American Express, MasterCard, PayPal, Visa, Google Pay, Apple Pay. Payment options may vary depending on your cart total and region. If you prefer to pay by bank transfer, just reach out to us
at info@celestiafinejewelry.com for assistance.

We take your privacy seriously and handle all personal information with strict confidentiality. Every transaction on our website is secure, protected by SSL encryption to safeguard your personal and payment details. We never store credit card information.

Your bank account will be debited as soon as your purchase is confirmed.

At Celestia, we exclusively use high-quality materials, such as solid 14K solid gold and lab-grown diamonds, sourced from trusted and ethical vendors.

Our jewelry is made from solid gold, so it won’t fade over time. Differently from gold-plated pieces, which can wear down and change color, we ensure you receive high-quality pieces that stand the test of time and can be passed down through generations.

Select your diamond stud size—small, medium, or large—and choose your favorite cut: round, pear, or radiant. Then, pick from our range of diamond extensions to begin creating your various looks! Each stud is compatible with all our extensions, giving you the flexibility to mix and match.

If you're unsure about sizing, please refer to our Sizing Guide before placing your order. Our expert team is happy to assist you with any questions at info@celestiafinejewelry.com and on Whatsapp messages.

Celestia’s chain designs are adjustable to fit you perfectly and your personal style, with three size options for both necklaces and bracelets.

For necklaces:

• Choker (15” / 37 cm) for a tight, bold look
• Everyday (17” / 42 cm) for a comfortable, classic fit
• Relaxed (18” / 45 cm) for a looser, more laid-back feel

For bracelets:

• 6” / 15.5 cm
• 6.5” / 16.5 cm
• 6.88” / 17.5 cm

These options ensure the perfect fit, whether you're layering or wearing them solo.

Regular cleaning is essential to keep your jewelry shining and ensure longevity. In everyday use, your jewelry may be exposed to stress from bumps, scratches, UV rays, dust, sweat, and temperature changes. To maintain its beauty, we recommend having your jewelry cleaned and serviced annually. Simply contact us at info@celestiafinejewelry.com and we will take care of it.

For a simple at-home method, soak your Celestia jewelry in a bowl of warm water with a few drops of mild dish detergent for 15 minutes. Then, gently scrub with a soft baby toothbrush or cotton swab, and rinse thoroughly.

To keep your jewelry in top condition, protect it from scratches against hard surfaces and sudden movements that could damage the stone or setting. Avoid wearing it while exercising, sunbathing, doing household chores, or in the sauna, as it can damage precious metals. Protect it from contact with cosmetics like hairspray, deodorants, and sunscreen, as well as fats and oils.