Frequently Asked Questions Leonids Jewelry

Browse our collections, select a piece, choose your size or engraving options, and click Add to Cart. Once you're ready, go to checkout to complete your purchase.

We accept major credit cards, debit cards, Paypal, Apple Pay and Klarna.

Yes. You can split your payment with Klarna right at checkout. Learn more.

Leonids Jewelry offers free standard shipping worldwide. Both within the U.S. and internationally. No minimum purchase required.

Yes. If you require expedited shipping, please contact us at care@leonidsjewelry.com. We would be delighted to assist you. . For more details, please check our shipping policy. Estimated delivery time will be shown during checkout based on your location.

Once your order ships, U.S. customers typically receive it within 3–4 business days via FedEx, UPS, or USPS.

Your fine jewelry is handmade by our jewelers, so it takes about 7 days to produce before shipping. If you order our engagement ring series, this cycle will be longer, about 2 weeks of production time. More details can be found in our Shipping Policy.

Yes! Leonids Jewelry ships worldwide. Please note that customs duties, VAT, and import taxes are not included in the shipping cost and are the buyer’s responsibility. If the shipment is refused or returned due to customs issues, associated return fees will be deducted from your refund. Leonids is not responsible for customs-related delays.

You’ll receive a tracking email once your item leaves our studio. You can then enter your order number or tracking number on this page：https://www.leonidsjewelry.com/apps/track123 to track the progress of your shipment.

Leonids Jewelry offers a 30-day return window on unworn items for U.S. customers. Returns must include all original packaging, certificates, and any free promotional items. Start your return through our Contact Page or review our Refund Policy.

Yes. Please contact us within 24 hours at care@leonidsjewelry.com. After that, cancellations aren’t guaranteed and will follow our return process.

Absolutely. Every Leonids piece comes with a lifetime manufacturing warranty covering craftsmanship defects.

Manufacturing defects only. Damage from wear, loss, accidents, or unauthorized repairs are not covered. Full terms are on our Lifetime Warranty page.

Email care@leonidsjewelry.com with your order number and issue description. Our team will assist you from there.

 Right now, Leonids Jewelry is offering:

• A free moissanite necklace with any purchase – See full terms
  
• 10% off your first order when you sign up for our emails
  
• $500 Gift Card Giveaway – sign up and follow us to enter.
  

More info on current offers can be found on our Promotions Page.

Yes! All Leonids Jewelry features IGI-certified lab-grown diamonds that are optically and chemically identical to mined diamonds.

We only use 100% recycled solid gold, plus conflict-free lab-grown diamonds. Read more on our Quality Page.

Absolutely. Leonids Jewelry is committed to ethical sourcing and low-impact production from start to finish. Read more on our Sustainability Page.

Yes. We offer custom ring designs and free engraving on our Engagement rings. Just tick the engraving box at checkout.

• For rings: Visit our International Ring Size Guide.
• For necklaces/bracelets: Sizing info is available on product pages.

Not sure? Select “I don’t know my size” if available, and we’ll work with you before we begin production. We’re here to help. Just contact us if you're stuck.

Yes. Every Leonids piece comes beautifully packaged, ready to gift. You can also include a custom message during checkout. Just check the gifting option when checking out ;)

Yes. Visit our blog for guides on diamonds, jewelry care, lab-grown vs. mined stones, and more. We're happy to help you make confident, informed choices.

• Remove before heavy workouts, cleaning, or using harsh chemicals
  
• Store pieces separately in soft cloth or the original box
  
• Clean with mild soap and a soft toothbrush, or a jewelry cloth
  

Our diamonds and metals are durable, but a little care keeps them brilliant for years. You can check out our complete care guide for more comprehensive information.

Lab-grown diamonds are produced in a laboratory by simulating the extreme conditions in which natural diamonds form. A diamond ‘seed’ is set in carbon-rich conditions inside a sophisticated growth chamber. Using our exclusive growth technique, the seed develops into a rough diamond. The rough diamond is then planned, laser cut, polished & finished just like a mined diamond is. Common two methods include high pressure and high temperature (HPHT), which converts graphite into diamond through high pressure and temperature, and chemical vapor deposition (CVD), which forms diamond crystals by depositing carbon atoms layer by layer by decomposing a carbon source gas in a vacuum environment. These methods can precisely control the growth process of diamonds, thereby producing high-quality, impurity-free diamonds. They embody the years of hard work and wisdom of countless scientific researchers and have promoted major changes in the diamond industry.

Lab-grown diamonds are diamonds artificially grown in a laboratory. Their chemical composition and structure are exactly the same as natural diamonds, and they are also impeccably hard and bright. The lab-grown diamonds are real diamonds, and the price is only 30-50% of natural diamonds. Undoubtedly, They are an environmentally friendly alternative to natural diamonds. Moissanite is a natural synthetic gemstone that is highly regarded for its outstanding fire. Its Mohs hardness is 9.25, second only to diamond, and it is very durable. But it is not a real diamond. Its structure and composition are very different from natural diamonds. In fact, moissanite has more dazzling fire than diamonds and can emit colorful brilliance in various lighting conditions. Whether you choose lab-grown diamonds or moissanite, they both have more environmental and ethical advantages over natural diamonds. Lab-grown diamonds avoid the environmental damage and labor exploitation caused by mining, while moissanite reduces the demand for natural resources through an efficient synthetic process.

Yes. Because our lab grown diamonds are man-made in our controlled laboratory setting, they are 100% conflict-free and do not require mining tons of earth to find them. All local labor laws are followed, including child labor laws, and the creation of our lab grown diamonds is free from funding violence, warlords, corrupt governments, or other human rights abuses.

K gold combines the best of both worlds—purity and strength. It is less prone to scratching and bending compared to pure gold (24K), making it ideal for everyday wear. Additionally, K gold’s versatility in color (yellow, white, and rose) allows it to complement various skin tones and styles, offering timeless beauty that aligns with both modern and traditional tastes.

First of all, K gold is an alloy formed by adding a small amount of other metals to gold in a certain proportion. International standards refer to theoretically 100% pure gold as 24K gold. The gold content of 1K is approximately 4.166%, 9k is 37.5%, 14k is 58.5%, and 18k is 75%. 24k gold is theoretically pure gold, that is, the gold content is 100%. .
Secondly, K gold has high hardness, low toughness, high brightness, is not easy to deform, is not easy to wear, can fix diamonds more firmly, and is relatively cheap (compared to platinum). However, pure gold is too soft and complex designs cannot be made. The labor cost of K gold is relatively high. After recycling the molten gold, only 50% is left, and only 50% is left after the round trip loss. Therefore, from an investment perspective, the investment value of pure gold is greater than that of K gold. But as an excellent piece of jewelry, K gold is the best choice.
At last, The process requirements of K gold are higher than that of pure gold, and it needs to go through more than ten processes (briquetting, wire drawing, heat treatment, electroplating, etc.). Therefore, the workmanship is meticulous, the appearance is fresh, the surface is smooth, and the inner light is strong. The processing of pure gold is relatively simple and can be processed by ordinary hand workshops; while the processing of K gold is difficult and often requires many large machines and precision instruments. The processing personnel are also more professional, which increases the cost and management expenses. In addition, the ratio of raw materials is also a very important link in K gold, while the requirements for pure gold are not so high.