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Tianyu Gems - Custom Jewelry Manufacturer with 25+ Years of Experience | Free CAD Design | Lab Grown Diamond, Moissanite & Gemstone Jewelry

FAQ
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Lab Grown Diamond
Gemstones
Regular FAQ
Jewelry
31
How long does the refund process take?
After the returned item is received and inspected, refunds are generally processed to the original payment account within 7–10 working days, excluding transfer or service fees.
32
Who pays for return shipping or warranty shipping?
Shipping costs are generally non-refundable, buyers bear the return shipping cost, and customers are responsible for the cost of sending jewelry or gemstones back to Tianyu Gems for warranty-related service.
33
How should I care for my jewelry?
To keep your jewelry in good condition, avoid contact with chemicals, perfumes, and water, especially salt water or chlorine. Store jewelry separately in a soft pouch or jewelry box, and clean it regularly with a soft polishing cloth.
34
Why can silver jewelry tarnish over time?
Silver is an active metal and may naturally oxidize over time, which can lead to slight discoloration or tarnishing. This is a normal material property rather than a manufacturing defect.
35
How long does it take for customize gemstone
Normally it takes 3-5 days, if the cut is not done before, it will take a little longer because it needs to be researched, and the better the information provided, the faster it will be done. Large quantities can contact sales to calculate the exact time
36
What diamond cuts can be made with moissanite
Basically all diamond cuts can be customized, including some special cuts, Old Mine cut, Antique cut, French cut, Ashoka cut, portrait cut, Taille Impératrice cut and so on. We can cut according to the picture or video provided by the customer.
37
Is it pass diamond tester
Yes, Moissanite can 100% pass a simple diamond tester (handheld thermal conductivity meter) like a diamond.
38
Is there a certificate
The product do not come with a certificate by default. If you need a certificate, please contact customer service
39
Is moissanite a good alternative to diamonds
Yes, moissanite is a great alternative to diamonds for a number of reasons. First, moissanite is nearly as hard as diamond on the Mohs scale, making it durable and long-lasting. Second, moissanite has a higher refractive index than diamond, which means it sparkles more and appears more brilliant. Finally, moissanite is significantly less expensive than diamond, making it a more budget-friendly option for those who still want the look and feel of a diamond.
40
Is moissanite an ethical and sustainable choice
Moissanite is generally considered to be a more ethical and sustainable choice than diamonds, due to the way it is produced. Moissanite is created in a lab using eco-friendly methods that do not involve mining, which can have negative environmental and social impacts. Additionally, moissanite is not associated with the same human rights issues that can be found in the diamond industry, such as the use of child labor or forced labor.
41
Can moissanite be used in other types of jewelry
Yes, moissanite can be used in a variety of jewelry types beyond engagement rings, including earrings, pendants, bracelets, and even men's jewelry. Moissanite's durability and brilliance make it an excellent choice for everyday wear, and its affordability makes it accessible for a wide range of budgets.
42
Are hydrothermal emeralds fake?
No, hydrothermal emeralds are real emeralds that are created in a lab through a controlled process.
43
Do hydrothermal emeralds have inclusions like natural emeralds?
While hydrothermal emeralds can have inclusions, they generally have fewer inclusions and a more consistent color than natural emeralds.
44
Are hydrothermal emeralds as valuable as natural emeralds?
Hydrothermal emeralds are less expensive than natural emeralds due to their availability and lab-grown nature. However, they are still valued for their beauty and durability, and are a popular choice for jewelry-making.
45
Are hydrothermal emeralds real emeralds?
Yes, hydrothermal emeralds are real emeralds, but they are not natural emeralds. They are created in a laboratory environment using a hydrothermal solution.
Wuzhou Tianyu Gems Co., Ltd. located in the world renowned artificial gem city-Wuzhou, Guangxi, was founded in 2001. We are a professional high-end gem processing and custom jewelry manufacturer. We specialized in solid gold, 925 sterling silver fine jewelry, 24K pure gold jewelry, Lab grown diamond, moissanite, synthetic emerald, lab grown gemstone etc.
 Tel/ WhatsApp: +86 13481477286
 Address: No.69 Xihuan Road Wan Xiu District, Guangxi Zhuang Autonomous Region, China
Copyright © 2026 Wuzhou Tianyu Gems Co., Ltd. - www.tygems.net | Sitemap
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