- Ready-to-Ship Collection: items are delivered within 3-5 business days.
- Custom Crafted Jewelry: For pieces made just for you, allow 10-14 business days for creation and delivery. It'll be worth the wait!
This 13 ct. Tennis Riviera Lab Diamond Necklace pairs the clean line of a classic Riviera design with a heart-shaped focal diamond at the centre. Crafted in polished 18K white gold, the 16-inch necklace keeps the diamonds close to the neckline while giving the heart detail a clear point of focus. The combination of a traditional tennis necklace silhouette and the softer heart shape creates a balanced design that feels distinctive without becoming overly ornate.
• Custom carat options allow the necklace to be created in different total carat weights, including this 13 ct. design
• White lab-grown diamonds of excellent cut, VS1 or better clarity, colourless D-E-F
• Certification may include IGI, IDT, HRD, SGL, GIA certificates
• Available customisation in white, yellow, and rose 18K gold
• Diamond cuts include round, oval, cushion, pear, radiant, emerald, marquise, asscher, princess, heart, and multishape for custom design options
• Complementary express shipping
• Complementary personalisation
• Complementary signature emerald-green gift box for a considered unboxing experience
• Natural diamond option available
Craftsmanship with Precision and Care
Each Tennis Riviera Lab Diamond (13 ct.) Necklace (16 in.) with Heart Center Diamond in 18K White Gold is handcrafted in solid 18K gold and made to order. The white lab-grown diamonds are selected for their excellent cut, brilliance, colourless D-E-F colour and VS1 or better clarity, with particular attention given to the proportions and appearance of the heart-shaped focal diamond. The design can be customised with your preferred total carat weight, metal colour and applicable diamond and setting details. It is also available with GIA-certified natural diamonds.
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Other jewellery (bracelets, bands, necklaces, earrings) can be certified by IGI, SGL, IDL or HRD.
Carat
- Carat weight has the most influence on diamond value. The weight or size of a diamond is measured in carats (ct.).
- Diamonds of different shapes may appear different sizes for the same carat weight.
- One carat weighs 1/5 of a gram and is divided into 100 points. For example:
0.75 carat = 75 points 1/2 carat = 50 points 1/4 carat = 25 points
- When diamonds are mined, large gems are discovered much less frequently than small ones. This rarity makes large diamonds much more valuable.
- Diamond prices rise exponentially with carat weight. So, a 2-carat diamond of a given quality is always worth more than two 1-carat diamonds of the same quality.
Color
- Diamonds are graded on a scale from colorless to light yellow or light brown. D-F falls within the colorless range, which is considered the rarest and most expensive.
- Fancy colored diamonds are those with hues other than yellow or brown, and they are graded separately.
- The color of diamonds is determined by comparing them to a master set of stones ranging from D (colorless) to Z (most yellow/brown).
- IGI assigns color grades for diamonds in the D-Z range by viewing them through the pavilion in a neutral environment to ensure accuracy.
Clarity
- Clarity evaluates a diamond's freedom from internal and external characteristics that occurred during formation, polishing, or wear.
- Clarity characteristics include inclusions (internal) and blemishes (external).
- Grading the clarity involves observing the number, nature, size, and position of these characteristics.
- IGI grading reports include diagrams showing clarity characteristics, marked in red for internal and green for external features.
- Cut quality significantly affects a diamond's appearance, including its brilliance, dispersion (fire), contrast patterns, and scintillation (sparkle).
- Man-made factors such as planning, proportions, cutting precision, and finishing details determine the diamond's visual properties.
- Diamond faceting has evolved over time, with different shapes and cutting styles available.


























