5.81 Oval 'Cambridge'

Lab grown diamonds are real diamonds. Lab grown diamonds are created using the exact same process as natural diamonds – just within a controlled laboratory environment rather than deep underground. Through advanced technology, these diamonds form under high pressure and temperature, replicating the natural conditions that produce mined diamonds over millions of years. The result is a diamond that is physically, chemically, and optically identical to a natural one, with the same fire, brilliance, and durability. However, unlike mined diamonds, lab-grown diamonds are produced without the extensive environmental disruption, land degradation, or carbon footprint associated with traditional diamond mining. By choosing lab-grown, you get the same rare beauty and allure – without compromise, without harm.
Explore more of our DURANT Collection and experience true sustainable luxury.

Custom Design Services for specific items are available with the designer upon request. Whether this be an exclusive engagement ring, or a set for a celebrated loved one, each piece is quoted individually depending on the brief and requested time frames and carries the addition of our standard Custom Design Fee. This Fee is set internationally and varies for each brief and time frame, commencing at USD2500.
Please email us directly to inquire as to the current availability of this service, and to assist you with submitting your request.
Please Note - there are a select number of Custom Design projects available within the Designer's calendar year. Requests can only be taken if there is allocation available.

Please contact us directly to provide your Registered Details and we will provide you with your personal 'Services Code' for a gifted -10% at Checkout.
We thank you for your valued service and are here to help you however we can in return.

DURANT by Johanna Johnson

DURANT 'FINE' Jewellery + 'FASHION' Jewellery Collections
• Our 'FINE' Jewellery Collections feature the world's best lab grown diamonds set in solid 14k yellow gold, white gold or platinum. Designed by Johanna Johnson with an antique-inspired, high-fashion aesthetic, these limited-edition pieces incorporate Johanna's background in red carpet fashion with the finer details and finishes of heritage craftsmanship.
• Our 'FASHION' Jewellery Collection is crafted using the highest possible micron 14k gold plating, solid sterling silver, and the finest cut stones. Curated and designed by Johanna Johnson, this collection offers an accessible luxury alternative without compromising on craftsmanship and design.

JOHANNA JOHNSON, Designer
Johanna Johnson is an internationally acclaimed designer known for her high-design approach to luxury bridal and red carpet fashion. Now after many years working on heavily embellished gowns, jewellery and accessories she is expanding her house to include DURANT Fine Jewellery.
As with all of her gowns, Johanna Johnson designs every piece in her fine jewellery collections, drawing inspiration from vintage and estate jewellery, incorporating modern sustainability with the allure of red carpet glamour.

BRAND DIFFERENCE
Our DURANT Jewellery blends 'Heritage Craftsmanship' with a modern high-fashion edge, offering exclusive, Limited Edition pieces with the level of detail and quality usually only found in antique and estate jewellery.

LAB GROWN DIAMONDS
Lab grown diamonds are real diamonds, created using cutting-edge technology that mirrors the natural diamond formation process. They possess the same brilliance, fire, and durability as mined diamonds, with identical physical, chemical, and optical properties.
Even under a jeweler’s loupe, there is no visible difference between a lab grown and a mined diamond. The only way to distinguish them is through the microscopic laser inscription on the diamond’s edge, which corresponds to its unique numerical listing on an internationally accredited GIA certificate – ensuring full transparency and authenticity.
Lab grown diamonds offer the same exceptional quality and prestige as mined diamonds but without the environmental impact or ethical concerns of traditional mining.

LAB GROWN V NATURAL
Lab grown diamonds offer identical beauty and brilliance to mined diamonds while being 100% conflict-free, sustainable, and more affordable. They are created using the exact same process as natural diamonds, just within a controlled laboratory environment rather than deep underground. Through advanced technology, these diamonds form under high pressure and temperature, replicating the natural conditions that produce mined diamonds over millions of years. The result is a diamond that is physically, chemically, and optically identical to a natural one, with the same fire, brilliance, and durability. However, unlike mined diamonds, lab grown diamonds are produced without the extensive environmental disruption, land degradation, or carbon footprint associated with traditional diamond mining. By choosing lab grown, you get the same rare beauty and luxurious sparkle, without compromise, without harm.

DIAMOND CERTIFICATIONS
All of our lab grown diamonds are certified by leading gemological institutes such as IGI or GIA, ensuring the highest quality and international authenticity.

DURANT 'FINE' Jewellery

DURANT FINE JEWELLERY - PRECIOUS METALS
We use solid 14k yellow gold, white gold, and platinum to ensure lasting quality and heirloom-worthy craftsmanship.

DURANT FINE JEWELLERY - LIMITED EDITIONS
Our DURANT Fine Jewellery features only Limited Edition designs, ensuring you own a truly unique piece of luxury jewellery. Each exclusive design contains an internationally registered 'Limited Edition Number' specific to that item and purchaser.
All details of our international register are kept under strict confidentiality.

DURANT FINE JEWELLERY - CUSTOMISATIONS
We offer a range of services such as engraving and re-sizing, and personal, commissioned 'Design Services' with the designer. Please contact one of our team to inquire about the designer's available 'Custom Order' schedule, or for engraving or re-sizing requests. 
Please note – service costs for engraving and re-sizing vary dependent on the detail and timings required. The designer's 'Custom Order Fee' is set internationally and commences at USD2500.

DURANT 'FASHION' Jewellery

DURANT FASHION JEWELLERY - MATERIALS
• Our Fashion Jewellery is crafted with the highest possible micron 14K gold plating, solid sterling silver, and expertly cut fine stones offering luxury jewellery at a more accessible price
• Our Fashion Jewellery Collection features expertly cut premium stones that mimic the brilliance and quality of fine gemstones while maintaining an accessible price point
• Our 3-micron 14K gold plating ensures the highest possible longevity, but as with all plated jewellery, proper care is needed. Avoid direct contact with water, chemicals, and harsh perfumes to preserve the finish

DURANT FASHION JEWELLERY - CARE
To keep your DURANT Fashion Jewellery in the best condition:
• Avoid excessive exposure to water, perfumes, and chemicals
• Store in a soft pouch or jewellery box when not in use
• Clean gently with a soft cloth

Sizing

RING SIZE ALLOCATION
We want to ensure your ring fits perfectly. Follow these simple steps to determine your ring size:
1. Measure Your Finger Directly with our 'Online Ring Sizer'
• Please click the link under any of the ring products you admire
• Using your phone camera, scan the supplied QR code
• Follow the prompts to place your preferred finger you wish to size on your phone screen
• Make sure the dotted lines aligns directly to either side of your chosen finger, then press the 'tick'. This capture will list your ring size. Hit 'OK' to then complete your purchase.

2. Use a Ring You Already Own
• Select a ring that fits the finger you want to measure
• Lay the ring flat on a ruler and measure the inner diameter (the distance across the inside of the ring)
• Compare the measurement to the size chart below to find your size

3. Visit a Jeweler for an Accurate Measurement
• For the most accurate measurement, visit a professional jeweler and have your finger sized

4. Important Tips
• Measure your finger at the end of the day when it's warm, as fingers tend to shrink in cold temperatures
• If your knuckle is larger than the base of your finger, select a size that fits over the knuckle comfortably
• If you're between sizes, we recommend sizing up for comfort

RESIZING
• For designs that are able to be re-sized we offer one complimentary ring resizing within 30 days of purchase for DURANT Fine Jewellery (excluding eternity bands and intricate designs).
• Certain designs, particularly those featuring a continuous band of diamonds or intricate settings, cannot be resized without compromising their integrity. Rings with a full-eternity design (where diamonds or gemstones encircle the entire band) do not have an area of unset metal to adjust the size without disturbing the stone placement, symmetry, or overall durability. Additionally, intricate settings with detailed craftsmanship may not withstand alterations without weakening the structure. In these instances each ring size has its own mold and the design is amended to fit and set to each size.
• As full-eternity designs cannot be resized, each size is crafted individually, requiring a precise number of diamonds or gemstones to maintain the design's integrity. Larger ring sizes require more materials, including additional stones and precious metal, which naturally increases production costs. Each ring is carefully measured and set to ensure the perfect balance of aesthetics, durability, and comfort.
• Some of our designs contain a 'Durant Disc' at the base of the design, which is a small branded disc of metal used for easy re-sizing by your local jeweller. Please contact us for information or addition of a Durant Disc for a design that may not already hold one. Please note - a Durant Disc cannot be added to some designs. 

Services, Insurance & Warranties

JEWELLERY REPAIRS
We offer repair services for both DURANT Fine and Fashion Jewellery. Contact us for details on specific repairs and pricing.

INSURANCES
• All sales are covered by our door-to-door insurance
• DURANT Fine Jewellery clients have the option of selecting immediate, externally provided*, Annual Insurance for their purchases at Checkout. This feature is being added by 1st March 2025, however can be arranged with us directly prior to this date
*The Insurer contacts our clientele directly to activate this recommended service. This is a separate arrangement with the Client and the Insurer, not related to/with Johanna Johnson Inc./DURANT

WARRANTIES
• All DURANT Fine Jewellery is provided with a lifetime warranty against manufacturing defects. Please read our T&C's for all specific details.
• We provide a one-year warranty on our DURANT Fashion Jewellery against manufacturing defects. Please read our T&C's for all specific details.

Orders & Shipping

HOW TO
Simply select your desired piece, add it to your cart, and proceed to checkout. You will receive an order confirmation email once your order is placed.

PAYMENT METHODS
We accept major credit/debit cards, PayPal and Apple Pay. 

PAYMENT SERVICES
We provide financing options through a number of select Payment Services, allowing you to spread the cost of your purchase over multiple payments. These options are available at Checkout. Additional Payment Services Providers are being added in the coming weeks.

ORDER MODIFICATION/CANCELLING
Your order can only be modified or canceled within 24 hours of purchase. After which production and/or shipping will have commenced. 
All purchases are held to our Terms & Conditions as set out at time of purchase, and as detailed in the direct link online.

INTERNATIONAL SHIPPING
• We ship all of our products worldwide
• International shipping costs and delivery times vary by location, as detailed at checkout
• Taxes & Duties are the responsibility of the Purchaser

DELIVERY TIME FRAMES
• DURANT 'FINE' Jewellery Collection: 4-6 weeks for made-to-order pieces. Please see the listing relevant to each product.
• DURANT 'FASHION'' Jewellery Collection: Dispatched within 1-3 business days, or 2-3 weeks for all made-to-order items. Please see the listing relevant to each product.

SIGNATURE ON DELIVERY
For security reasons, all of our shipments require a signature upon delivery. Please ensure the delivery details you provide us have someone in attendance during the day, and approval for receiving your package if you are not present.

TRACK YOUR ORDER
You will receive a tracking number via email once your order has been shipped. Please use the link provided to track your shipment online. 
Please note - due to flight arrivals, processing times and custom requirements, some shippers can take 12-24 hours to update the delivery process.

LOST OR STOLEN PACKAGES
All shipments are fully insured. If your package is lost or stolen, please contact us immediately for assistance.

Returns

RETURN POLICY
We offer a 14-day 'change of mind' policy for unworn DURANT 'FINE' jewellery, returned in the original packaging, undamaged
• We offer a 14-day return policy for unworn DURANT 'FASHION' jewellery, returned in the original packaging, undamaged. 
• All custom, engraved, re-sized and made-to-order pieces are final sale.

CUSTOMISED OR ENGRAVED ITEMS
Unfortunately, customised, re-sized and engraved pieces are non-returnable, as they are made specifically for you.

REFUND TIMES
Refunds are processed within 5-7 business days after receiving and inspecting the returned item.

PROFESSIONAL CLEANING
We recommend having your DURANT 'FINE' Jewellery professionally cleaned every 6-12 months. Our DURANT 'FASHION' Jewellery can be gently cleaned at home with a soft cloth.

Environmental & Trade

ETHICALLY SOURCED
Johanna Johnson Inc uses 100% conflict-free, lab-grown diamonds and responsibly sourced metals, ensuring maximum sustainability and ethical craftsmanship.

ECO FRIENDLY PACKAGING
All of our custom packaging is made from sustainable materials to minimise environmental impact however we can. This includes removing all plastic packaging from our internal production processes and delivery detailing.

FAIR LABOR PRACTICES
At Johanna Johnson Inc we work only with certified, ethical suppliers, who uphold and adhere to international fair labor standards and environmentally responsible practices. All of our Suppliers sign a binding 'Supplier Agreement' to maintain the highest manufacturing, ethical and environmental standards.

SALES TERMS & CONDITIONS + LEGAL NOTICES
Please see the direct pages listed in the Footer Menu.