Frequently Asked Questions (FAQ)

Q: Are the lab-grown diamonds sold on your website "fake diamonds"? What are the essential differences between lab-grown diamonds and natural diamonds?

A: The lab-grown diamonds (also known as cultivated diamonds) sold by us are not "fake diamonds". They are diamonds cultivated in laboratories by simulating the natural diamond formation environment through High-Pressure High-Temperature (HPHT) method or Chemical Vapor Deposition (CVD) method. Their chemical composition, crystal structure, and physical properties (hardness, refractive index, fire) are exactly the same as those of natural diamonds. They cannot be distinguished by the naked eye or ordinary testing equipment, and can only be identified by characteristics such as "growth lines" and "nitrogen impurity content" in professional laboratories.

The only essential difference from natural diamonds lies in the "formation environment": natural diamonds take billions of years to form deep in the earth's crust, while lab-grown diamonds are cultivated in laboratories within 1-3 months. In terms of price, lab-grown diamonds with the same 4C parameters are only 30%-50% of the price of natural diamonds, and they are more in line with the concept of environmental protection (reducing ecological damage caused by mine exploitation).

Q: Do lab-grown diamonds come with certificates? Do you support testing by authoritative institutions?

A: All lab-grown diamonds are equipped with special identification certificates issued by international authoritative institutions. The mainstream certificates include:

• IGI (International Gemological Institute): It will clearly mark "Lab-Grown Diamond" and indicate information such as the cultivation method (HPHT/CVD) and growth environment;
• GIA (Gemological Institute of America): The certificate number starts with "12", and the main text of the certificate will clearly mark "Lab-Grown". The marking rules for 4C parameters are the same as those for natural diamonds;

If you need third-party testing after purchase, you can contact customer service to obtain a list of cooperative testing institutions, and we will bear the testing fee. If the test result is inconsistent with the certificate, we support a full refund.

Q: Will lab-grown diamonds fade or depreciate? How stable are they for long-term wear?

A: The stability of lab-grown diamonds is exactly the same as that of natural diamonds. They will not fade or deteriorate due to wearing time or environmental factors (such as contact with sweat and cosmetics). Their main component is pure carbon, with a hardness of up to Mohs 10 (the same as natural diamonds), so they are not easy to scratch during daily wear. You only need to avoid strong impact (to prevent the setting from loosening, not the diamond itself from being damaged).

Regarding value: The price of lab-grown diamonds is affected by market supply and demand and technological maturity. In recent years, due to the advancement of cultivation technology, the price has shown a stable downward trend. However, as jewelry for wearing, their "decorative value" and "emotional significance" (such as engagement rings and commemorative jewelry) are not affected. If you need to exchange the old for the new later, we support "discount exchange for new jewelry of the same brand's lab-grown diamonds". The discount ratio is determined according to the condition of the jewelry and the wearing time (for details, you can consult customer service).

Q: Are the marking rules for the "4C parameters" of lab-grown diamonds the same as those of natural diamonds? Which parameters should be focused on when selecting?

A: The marking rules for the 4C parameters (Carat Weight, Color, Clarity, Cut) of lab-grown diamonds are exactly the same as those of natural diamonds. The selection logic can refer to that of natural diamonds, but combined with the characteristics of lab-grown diamonds, the following two points can be focused on:

• Color: It is easier to cultivate lab-grown diamonds with high color grades (D-F). And they have obvious price advantages. For daily wear, it is recommended to give priority to D-H color (colorless or slightly colored, with a more transparent visual effect);
• Clarity: The laboratory cultivation environment is controllable, so the clarity of lab-grown diamonds is generally high (mostly VS1-SI1 grade). There are basically no visible inclusions to the naked eye, so there is no need to pursue FL/VVS grade excessively (low cost-effectiveness);
• Cut: Same as natural diamonds, cut directly affects the fire of the diamond. It is recommended to choose EX/VG grade cut to ensure the sparkle of the diamond. Even for lab-grown diamonds, a high-quality cut can enhance the delicacy of the overall jewelry.
• If it is used in important scenarios such as engagement rings, you can choose the combination of "1 carat weight + D color + VS1 + EX cut". The budget is more than half lower than that of natural diamonds, but the visual effect is the same.

Q: What scenarios are lab-grown diamond jewelry suitable for wearing? Is there any difference in the matching idea between lab-grown diamond jewelry and natural diamond jewelry?

A: Lab-grown diamond jewelry has no restrictions on wearing scenarios. It is completely suitable for daily commuting, parties, weddings, or as a gift. It is especially suitable for the following needs:

• Limited budget but want to have "large-carat diamond jewelry" (such as diamond rings and diamond necklaces of 2 carats or more);
• Pay attention to the concept of environmental protection and refuse ecological damage caused by mine exploitation;
• Like to change jewelry styles frequently (lab-grown diamond jewelry is low in price and can be matched in multiple pieces).

The matching idea is the same as that of natural diamond jewelry:

• Daily commuting: Choose simple styles (such as small diamond earrings and thin-ring diamond rings), and match them with shirts and sweaters for a low-key and unobtrusive look;
• Formal occasions (such as weddings and dinners): Choose styles with a large number of inlays (such as cluster-set diamond rings and diamond pendant + necklace sets), and match them with formal dresses to enhance the sense of delicacy;
• Layered matching: Small-carat lab-grown diamond rings (such as 0.3-carat and 0.5-carat) can be matched with plain metal rings, and diamond necklaces can be matched with thin-chain clavicle necklaces to create a sense of hierarchy (avoid layered matching of multiple large-carat jewelry, which is easy to look messy).

Q: Which effect is better when matching lab-grown diamonds with different metal materials (such as 18K gold and platinum)?

A: The choice of metal material mainly depends on personal style and wearing needs, and has nothing to do with "whether it is a lab-grown diamond". The following two classic matches are recommended:

• 18K rose gold + lab-grown diamonds: The warm tone of rose gold can neutralize the cold feeling of diamonds, which is suitable for people with yellow and warm skin tones;
• Platinum (Pt950) + lab-grown diamonds: The natural white color of platinum echoes the transparency of diamonds, with a simple and high-end overall style. It is suitable for people with white and cool skin tones, especially for wedding rings (symbolizing "purity and eternity", and platinum has moderate hardness and firm inlay);
• 18K white gold + lab-grown diamonds: It has higher cost-effectiveness than platinum and is similar to platinum in color. It is suitable for users with limited budget but who like the matching of "white gold + diamonds". It is wear-resistant for daily wear and suitable for making rings and bracelets.

Q: Is there any difference in the maintenance between lab-grown diamond jewelry and natural diamond jewelry? How to maintain it daily?

A: The maintenance method of lab-grown diamond jewelry is exactly the same as that of natural diamond jewelry. The core is to avoid "damaging the metal" and "contaminating the diamond surface". The specific suggestions are as follows:

• Daily wear: Avoid contact with chemicals such as cosmetics, perfumes, and detergent (to prevent metal oxidation and dirt adhesion on the diamond surface). Take off the jewelry before bathing and exercising;
• Cleaning method: Gently brush the diamond surface and metal gaps with a "soft brush + neutral detergent + warm water" every week, and dry it with a soft cloth after cleaning (avoid using a hard cloth to prevent metal scratching);
• Storage method: Put it in the flannel grid of the jewelry box separately to avoid friction with other jewelry (to prevent metal deformation and diamonds scratching other jewelry);