Lab-grown diamonds are diamonds with the same crystal structure, chemical composition, and physical properties as the mined rocks: carbon atoms arranged in a cubic crystal structure. They are grown in labs, with advanced technological processes that stimulate the same conditions under which mined diamonds develop when they form in the mantle, beneath the Earth’s crust.

Here at Stefee we proudly offer only laboratory-grown, socially and environmentally conscious diamonds in our fine jewelry.

This makes our diamonds brighter, and stronger and more responsible. Our diamonds are dedicated to sustainability.

Lab-grown diamonds are manufactured by two methods: chemical vapor deposition (CVD) or high pressure, high temperature (HPHT).

A seed, such as a thin diamond slice, is needed as the base for the chemical deposition process in the CVD process. The seed is positioned inside a chamber that has been vacuumed up to a high level. A carbon-rich gas is then pumped into the chamber. As the diamond is constructed layer by layer, energy is employed to dissolve the chemical bonds holding the gases together. The gems often take a month to fully develop.

While both offer a controlled environment, the HPHT is more costly and less energy efficient. A diamond seed is inserted into pure carbon via the thermodynamic process, which is coupled by tremendous pressure and heat. In 14 various ways, the carbon binds to the diamond seed to create a rough diamond with a complicated cub-octahedron shape.

We only use diamonds grown from CVD growing process.

Diamonds are officially defined by the Federal Trade Commission (FTC) as "A mineral consisting largely of pure carbon crystallized in the isometric system," and regardless of how they are made—through mining or creation—both have the same chemical makeup. The distinction between lab-grown and mined diamonds is based on how they are produced. The terms "lab-grown" and "mined" denote the origin of the diamond; whereas mined diamonds are extracted from the earth using sophisticated pit, underground, or alluvial methods, heavy machinery, and a great deal of labor, created diamonds are produced by mimicking the process used to create diamonds in nature with no harm to the environment or to humans.

Natural diamonds and lab-grown ones can be thought of as being similar to ice created outside on a winter's day as opposed to ice that has developed inside your
refrigerator..

Yes, STEFEE offers inscribed certified lab-grown from 1 carat and above which has unique identification number. It is only visible with jewelers’ Loupe.

Choosing a carat weight is very much a personal preference. Stefee’s diamond experts suggest 1ct. – 3ct. should be an ideal size for an engagement ring.

The width to length ratio only applies to brilliant round diamonds and describes how square or rectangular a diamond is. The ratio has an impact on the stone's attractiveness for all other diamond shapes. Simply divide the length by the width to get the precise ratio for every diamond.

Diamonds that are colorless or almost colorless show clear on the scale and fall between the letters D and H. The scale descends starting with D, which stands for colorless. Small quantities of pale-yellow start to peek through anywhere after H. Our STEFEE-made diamonds typically range from D to G on the color scale and are colorless or almost colorless.

F and G are the colors Stefee suggests.

Please reach out to hello@stefee.com for further assistance or schedule an appointment to speak with a Diamond Expert at hello@stefee.com or calls us +212 (419)-9355.

Cut- Starting with the cut, it is one of the most important characteristics of a diamond, its cut specifically refers to the quality of a diamond’s angles, proportions, symmetrical facets, brilliance, fire, scintillation and finishing details. In its natural state, a diamond’s beauty is generally well concealed, but once cut its brilliance is unlocked. Its value and beauty come from reflecting the maximum amount of light through its many facets. In a well-cut diamond, the facets reflect light off one another and disperse it through top. A diamond cut too deep or too shallow causes light to bounce out sideways or through bottom. All our diamonds are IGI certified. You can click  here  to know more. Only Round Brilliants can be rated as Ideal because they have the strictest cut criteria of all the shapes and have proportions that have been refined by empirical and mathematical data. The next level down is Excellent, followed by Very Good and Good.

COLOR – Unlike the typical concept of color, the color of a diamond is determined by the absence of color. A chemically pure and structurally flawless diamond has no color, just like a drop of clear water, and as a result, is worth more. These colors can be rated from D to Z, with D, E, and F being the highest color ratings and the shades of yellow starting at Z falling in alphabetical order after that.

Adversely, fancy color diamonds are yellow and brown stones that show color above the Z range or stones that show any other hue when turned face-up. The nitrogen in the diamond contributes to fluorescence. Despite having little impact, it obtains a different grade in lab reports. Every color on the color wheel is represented by these uncommon examples, but blue, green, pink, and red are especially significant. The value of gem diamonds in the D to Z range often decreases as the color becomes more noticeable, according to GIA. Contrarily, fancy color diamonds experience the exact opposite: As the color's intensity and purity rise, so does their value. Diamonds with vivid, large fancy colors are incredibly rare and expensive. Nevertheless, many exotic diamond hues are muted rather than pure and strong.”

CLARITY- Diamonds are created with intense pressure and heat reacting to carbon in a vacuumed chamber. This process can result in a variety of internal characteristics called ‘inclusions and external characteristics called ‘blemishes.’ These microscopic crystals called inclusions are inside every diamond and contribute to its uniqueness. FL which means flawless diamond is the highest clarity a diamond can acquire. It is free of inclusions. Without high magnification, however, you may never see the tiny inclusions in the diamond. The clarity start with FL, below that comes VVS1, VVS2, VS1, VS2, SI/1, SI/2, I1/, I2, I/3.

CARAT WEIGHT - In essence, carat weight describes the diamond's size. The definition of a metric "carat" is 200 milligrams. There are 100 "points" within each carat. A 250-point diamond will therefore be defined as 2.5 carats, or 250 pointers. This makes measurements up to the hundredth decimal point extremely accurate. Due to the fact that larger stones are more rare than smaller ones, size is the most obvious element that affects the diamond's value. However, the three additional diamond 4Cs—clarity, cut, and color—can significantly alter the values (and prices) of two diamonds of identical carat weight.

Yes! The market for sustainability has been opened by lab-grown diamonds, which are now available in a sector that was previously controlled by mined diamonds. The physical, atomical, and chemical characteristics of lab-grown diamonds are identical to those of their mined counterparts, and organizations like IGI accept them as genuine gems. Here is where you can read more about our diamonds here.

How are diamonds featured in STEFEE designs produced and is the process sustainable?

Our own laboratory uses the CVD process to make the sustainably created diamonds used in STEFEE designs. They start with a thin
diamond foundation. In a plasma reactor, carbon is atomized, and when the atoms stack one on top of the other, they expand the distinctive crystal structure of mined diamonds and cause them to grow into pure, gem-quality diamonds of jewelry quality. Any number of times, the foundation material can be cut off
and utilized as starting material. Our diamonds are cut and polished to the
highest standards possible by experienced craftsmen in our workshops once the rough stone has formed.

STEFEE sustainably sourced diamonds are manufactured with
less environmental impact. utilizing low emission patented technologies and enhanced efficiency using solar energy.

Our patented technology uses solar energy so that there
is a smaller carbon impact when growing our diamonds, making it more environmentally friendly than mining. Just one carat of lab-created diamonds saves 250 tons of earth, 120 gallons (450 liters) of water, and 143 lbs. (65 kg) of carbon dioxide
discharged into the atmosphere when compared to mined diamonds.

refund, credit, or exchange. The engagement ring must be in saleable condition, include all product documentation (e.g., STEFEE RECIPET/ INVOICE NUMBER, or Colored Stone or Diamond reports) and be accompanied by a sales receipt.

To make a return, please use the complimentary shipping label provided with your package and drop it off at the nearest FedEx location.

How can I schedule a consultation with a STEFEE Diamond Expert?

We offer a variety of ways to get in touch with a Diamond Expert you can call us, email us. LINK HERE: WE GIVE $150 CREDIT IF YOU TAKE APPOINMEN AND PURSCHASE

Yes, Stefee is proud to offer complimentary ring engraving with your purchase. Whether initials, a date, shared joke or romantic sentiment, our engraving and embossing services add a meaningful, distinct touch.

Shipping Rates & Times

Currently, we are only able to accept online orders to shipping addresses within the United States and do not ship internationally. To ensure the secure delivery of your order, Stefee does not ship orders to post office boxes. STEFEE is able to accept post office box addresses for your billing needs.

For each address within the United States, the following charges apply:

Standard Ground Shipping: $20

Please allow 3-5 business days to receive your items. Items ordered together may not always ship together. With signature total cost excluding taxes will be $25

Express Shipping with signature on delivery: $23

Please allow 1-2 business days to receive your items. Items ordered together may not always ship together. With signature total cost excluding taxes will be $27

Next-day delivery: $3 without signature on delivery and $3 with signature on delivery

• Orders placed before 3:00PM EST Monday through Friday will be delivered on the following day.

• Orders placed on Saturday before 1:00PM EST will be delivered Monday.

• Sunday and holiday delivery are not available.

Standard Ground Shipping: $20

Please allow 3-5 business days to receive your items. Items ordered together may not always ship together. With signature total cost excluding taxes will be $25

Express Shipping with signature on delivery: $23

Please allow 1-2 business days to receive your items. Items ordered together may not always ship together. With signature total cost excluding taxes will be $28

Next-day delivery: $3 without signature on delivery and $3 with signature on delivery

• Orders placed before 3:00PM EST Monday through Friday will be delivered on the following day.

• Orders placed on Saturday before 1:00PM EST will be delivered Monday.
Sunday and holiday delivery are not available

• Sales tax and engraving fees do not count toward the total amount.

Your package is fully insured while in transit! If you are having an issue with the delivery of your package,please reach out to hello@stefee.com for assistance.

Your order confirmation email will include an approximate ship date. While production is underway, we are unable to offer any additional information, but if there are any delays, we will let you know right away.

Once an order has been placed, we are unable to make changes to it. In-stock jewelry orders can be canceled before the shipping company assigns a tracking number, and made-to-order designs can be canceled within 12 hours of placing the order. It cannot be cancelled thereafter. Contact hello@stefee.com if you need help.

Your Stefee engagement ring or loose diamond will arrive to you with a IGI diamond certificate, along with any piece of jewelry with a 1ct or larger diamond.

Yes, you are permitted to return the setting alone and buy a new one within 30 days of receiving your engagement ring. The cost of recycling your setting is $20 USD, unless you opt to have the money put toward a non refundable STEFEE digital gift card. You will receive a complete refund in this scenario. Your engraving fee is not refundable.

You can buy a new setting and we will reset your diamond for a cost of $100 USD if your purchase is outside the return window or is deemed a final sale. The original configuration will be returned to you. The cost of return shipping is the responsibility of the purchaser, which is $5 USD You can also choose a diamond larger than carat from the diamond table to replace the diamond in your Solitaire Classics item. The same rules are in effect.

We want you to make a deliberate choice when purchasing jewelry or a diamond. However, if it isn't, you have 30 days after delivery to return fine jewelry, wedding bands, or engagement rings for a refund to the original form of payment or a gift card. Your purchase must be returned to us in its original packing and condition, along with all original paperwork, in order to be qualified for a refund. Jewelry that has been tampered with or altered by a different jeweler is not eligible for a refund. Items that have been engraved are returnable, but the engraving cost is not.

All engraved engagement rings with personalization are non-returnable.

Within 14 days of delivery, a STEFEE produced loose diamond purchased through STEFEEINC.com may be returned for a complete refund to the buyer's original form of payment. Each diamond must be delivered unset and in its original state, along with the Diamond Certificate and purchase paperwork from the time of purchase. Each consumer is only allowed to return one loose diamond, and the second loose diamond purchased through STEFEE.com is considered final sale.

A Return Merchandise Authorization and the reason for the return are required for all returns. After the items are received, refunds are processed within 10 business days.

On all orders from the US, STEFEE provides free return shipping.

We consider every stage of the creative process to be just as significant as the final product when it comes to our sustainable fine jewelry. Following the placement of your order, each engagement ring is made to order. We will disturb the diamond and recycle the gold when an engagement ring is returned. Each engagement ring refund will be reduced by a $20 recycling fee to support this process, allowing us to uphold our sustainability objectives. As a reminder, every purchase of an engagement ring includes our "lifetime care package," which enables for complimentary resizing within one full US size.

If you return your engagement ring with the intention of buying another one, we will issue a gift card for the full price (less the engraving cost, if applicable). A digital gift card from Stefee is non-refundable, never expires, and can be applied to any design on our website.

A fine piece of jewelry needs to be treated with care. When returning home, it should be properly removed. The last item you should put on before leaving the house is fine jewelry. Remove gently from the edges of rings rather than the top stone. We advise taking off jewelry before swimming since pool chemicals like chlorine can harm jewelry, and colder temperatures can shrink your finger size and make rings fall off. Additionally, it is preferable to take off your jewelry before taking a shower because soaps, shampoos, and other products can clog up earrings, necklaces, bracelets, and rings. It's crucial to maintain your regimen if you prefer to wear jewelry maintenance!

Please bear in mind that pure gold is malleable but durable, so scratches are normal with use.

Every customer inquiry is answered by our Customer Experience Team within business day by email and live chat. Although we don't have a phone number, you are more than welcome to organize a meeting with one of our Diamond Experts to find out more about our responsibly mined diamonds, wedding bands, engagement rings, and other fine jewelry. Find out more about their availability here, please!

The IGI Certified Gemologists who grade our diamonds have access to special data and technical advantages that are only available for lab-grown diamonds. In contrast to other diamond reports, our foundry offers a comprehensive producer warranty and guarantees the grade of your diamond. The end result is absolute assurance of your diamond's excellent quality and the best of diamond history and modernization. Here is more information about our diamond certificates.

To select the ideal STEFEE produced diamond(s) for your piece, you will video contact one of STEFEE's diamond experts. You will be able to go through our VARIOUS COLLECTIONS, discover more about the 4Cs, and choose from a variety of metal selections. You can invite a friend, family member, or partner to the appointment in addition to yourself.

One of STEFEE's diamond specialists will conduct a one-on one video conference meeting with you during your appointment. Explore our ring designs, personalization possibilities, and diamond selections while learning about the 4Cs and STEFEE produced diamonds. You can invite a friend, family member, or partner to the appointment in addition to yourself.

Our virtual appointments are free, and available for everyone. You can schedule your appointment here.