Z O R C O N A


Hand Crafted Diamond Neckwear
Premium VVS and VS diamond pieces direct to your door. All our natural and lab grown gemstones are certified by the Gemological Institute of America (GIA) & International Gemological Institute Standards (IGI).
For sales and enquires get in touch at support@zorcona.com.
BRINGING YOU MAXIUM CLARITY FOR A LIFETIME.
CUT
The cut is the most significant factor in creating sparkle and fire, and even a diamond of high quality can appear dull and lifeless without a high cut grade
CLARITY
This refers to the inclusions (internal) or blemishes (external) that are present in the stone.
COLOUR
Diamonds are graded in color from D to Z. The scale starts with D, representing colorless diamonds, and ends at Z, which represents light yellow or brown diamonds. A diamond with a lighter yellow or brown color is considered lower in color grade. In contrast, a colorless stone allows the maximum amount of light to pass through, enhancing its brilliance and fire. Therefore, the whiter a diamond, the higher its price tends to be.
CARAT WEIGHT
Diamond carat is often misunderstood as it refers to a diamond’s weight, rather than its size. When comparing diamond carat sizes, it is crucial to consider the diamond’s cut as well. A high-carat diamond with a poor cut grade may appear smaller, often cut deeper, than a diamond with a smaller carat weight but a better cut.



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Natural Earth Mined Diamond Chains
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Men's Natural Earth Mined Diamonds Gold Chain 22 Inches 8.8 CARATS 4.5mm
Regular price From £10,345.00 GBPRegular priceUnit price / per£11,083.00 GBPSale price From £10,345.00 GBPSale -
Men's Natural Earth Mined Diamonds Gold Chain 32 Inches 30 CARATS 5mm
Regular price From £29,555.00 GBPRegular priceUnit price / per -
Men's Natural Earth Mined Diamonds Gold Tennis Chain 30 Inches 101.25 CARATS 5mm
Regular price From £158,856.00 GBPRegular priceUnit price / per£184,716.00 GBPSale price From £158,856.00 GBPSale
Jewellery for Her
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Luxury 0.85 CT Natural Diamond Pendant Necklace 18K Gold
Regular price £3,325.00 GBPRegular priceUnit price / per£3,695.00 GBPSale price £3,325.00 GBPSale -
Flower Shaped Pendant Natural Diamonds 14K Yellow Gold
Regular price £739.00 GBPRegular priceUnit price / per -
18K White Gold Diamond Cross Pendant 1.0 CT
Regular price £4,433.00 GBPRegular priceUnit price / per£5,172.00 GBPSale price £4,433.00 GBPSale
High Jewellery
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Round Shape 10.0 CT Natural Diamond Necklace 18K White Gold
Regular price £22,166.00 GBPRegular priceUnit price / per -
Luxury Natural Diamond Necklace 10 CT 18K White Gold
Regular price £25,861.00 GBPRegular priceUnit price / per -
Luxury Wing Shape Natural Diamond Necklace 3.20 CT
Regular price £8,867.00 GBPRegular priceUnit price / per
Specialist factory network of Chain, Necklace and Pendant manufacturers including both dealers and procurers. Our factory partners are experts, very well established and are featured internationally associated with brands such as If&Co and more.

Z O R C O N A
We are Zorcona. Partner to the world’s largest grower of lab grown CVD diamonds and a specialist factory network in natural diamond pieces. Our niche is neckwear designed for Chains, Cuban links, Necklaces and high-end pendants. We can deliver loose diamonds curated through our lab grown process of finished pieces specifically crafted for each customer from natural raw materials. Our products and gemstones are backed with literal decades of unparalleled history and experience in the diamond industry breeding quality, consistency and clarity in every purchase with us.
GIA & IGI Certification
Partnered with the world’s largest grower of CVD Lab Grown Diamonds our standards are set by the world’s leading gemological institutes, we can boast premium standards direct to your door.
MANUFACTURERS
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PARTNER LOCATIONS
Los Angeles United States
Reaizhiguang China
Geneva Switzerland
Mumbai & Surat India
London & Edinburgh United Kingdom
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GREEN POWER
Our partners house state of the art growing facilities, environmentally sustainable socially responsible, and affordable.
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CERTIFICATION
Our factories have decades of experience producing high-end pieces certificated by leading gemmological institutes
THE LAB PROCESS

Diamond Seed Selection
In a world where technology and nature intertwine, a captivating process takes place, giving birth to the exquisite allure of CVD Lab-grown diamonds. Our factory partners process our lab-grown diamond pieces to meet global quality standards that rival even our natural grown pieces.

Chemical Vapor Deposition (CVD)
Via the Chemical Vapor Deposition (CVD) method. The diamond seed is placed in a specialised chamber, which is then filled with a carbon-rich gas, such as methane. The chamber is heated to extreme temperatures, sometimes exceeding 1,500 degrees Celsius, releasing carbon atoms. These settle on the diamond seed, layer by layer, slowly building up the diamond crystal structure accelerated within a controlled environment.

Growth & Diamond Formation
This phase can take several weeks, scientists monitor various factors, such as temperature, pressure, and gas composition. By carefully adjusting these parameters the diamond’s quality, color, and other characteristics can be influenced as time passes, for the diamond reach its desired size.

Cutting & Polishing
Once the diamond has reached its desired size, it is carefully extracted from the growth chamber. To unlock its attributes, skilled diamond cutters take over. These artisans use traditional cutting and polishing techniques to maximise its sparkle in various industrial applications.

Grading & Certification
Our manufacturers lab grown and natural diamonds are rigorously tested in a grading process tested by the Gemological Institute of America (GIA). These factors include the diamond’s 4Cs: Carat Weight, Colour, Clarity, and Cut.

Quality & Final Inspection
Quality is key, control measures are implemented to ensure consistent quality. This includes monitoring parameters, sampling and testing, equipment calibration, and maintaining traceability and documentation.