ZH Gems natural gemstones reliable supplier for ring
1. Considering high demand material requirements for material, natural gemstones is made up of turquoise cabochon .
2. The product features great hardness. Made of some stainless steel that is quite hard, it cannot be broken or bent easily.
3. The product is highly hypo-allergenic. It has been tested to be totally free of harmful substances and allergenic substances.
4. This product finds its application in varied areas.
Natural Aquamarine Oval Cabochon Loose Gemstone For Jewelry
Brand | ZH Gems |
Supply Ability | 10-3000kg available per month |
MOQ | 1kg but available for order |
Delivery Time | Prototype time need 3-7days; Lead time need 7-20days |
Delivery Port | Shenzhen |
Price Item | EXW,FOB all available confirm |
Payment Way | 1).T/T 30% deposit 70% balance payment before delivery products 2). Western Union and PayPal (For Sample Fee & Courier Cost) |
Package | 1).TOP quality: 1pc/bag, 100pcs/ploy bag, Under 1.5kg per one standard carton. 2).Normal quality: available it is up to customer request. 3).Special: can add logo, images etc all by your request. |
Shipment | 1).By express (UPS, DHL and Fed Ex are all available)–Swift Delivery (3-7 working days) and we can get you a special Price (Recommendation). 2).Send by Air: Arrive at destination Airport fast then need you to pick it up. 3).Ship by Sea: Low shipping cost and slow delivery (15-30days depends). Suitable for large quantity and non-urgent delivery. |
Application | Anniversary, Engagement, Gift, Party, Wedding all available it is up to your enjoy. |
Product Advantage：
Natural Aquamarine Oval Cabochon Loose Gemstone For Jewelry
Quality Control | 1).Preproduction samples will be a standard QA available before the production. 2).The production will be process by both machine and skilled handmade workers. 3).The extra 30% pieces will be ready as backup products. 4).The products will be double inspect before the final packing. |
Quality Standard | 1).Original natural Aquamarine gemstones; 2).Top quality; blue. |
Company Features
1. With expanded operations worldwide, Shenzhen Hong Zheng Technology Limited is moving to a higher and more professional level in manufacturing natural gemstones .
2. We've been focusing on manufacturing high quality wholesale turquoise cabochons for domestic and abroad customers.
3. ZH Gems upholds the attitude of customer first. Inquire! While paying attention to the quality of natural gemstone cabochons , ZH Gems also focuses on the customer service. Inquire! Shenzhen Hong Zheng Technology Limited's mission is to ensure the continued success of its clients. Inquire!
Forever Star Jewelry, is one of the professional jewelry and gemstones manufacturers in Panyu, Guangzhou, China.
1 Quality: We have strict quality controller department to ensure the professional characteristic and top rate of our products
2 Stone: we can offer a wide range of gemstones products, synthetic and natural gemstones
3 Price: very competitive prices with large stock
4 welcome to inquiry at any time!
Name | Black sapphire |
Color | Pure black color: The stone color is very deep blue, so it looks black. but it is not black as hair or black agate. the shining is the best. |
Category | Oxide mineral |
Chemical formula | aluminium oxide, Al2O3 |
Crystal habit | massive and granular |
Specific gravity | 3.95–4.03 |
Luster | nice |
Treatment | treated |
Hardness | 9 |
Clarity | Opaque |
Grade | A B |
Melting point | 2030–2050 ° c |
Sapphires may be treated by several methods to enhance and improve their clarity and color. It is common practice to heat natural sapphires to improve or enhance color. This is done by heating the sapphires in ovens to temperatures between 500 and 1800 °C for several hours, or by heating in a nitrogen-deficient atmosphere oven for seven days or more. Upon heating, the stone becomes more blue in color but loses some of the rutile inclusions.
