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Round Cushion Halo Floating Pendant Lab Diamond Necklace (16 in.) 18K Gold offers a refined look featuring a round cushion diamond embraced by a delicate halo setting. This pendant style highlights a floating design that adds a subtle contemporary touch. Crafted in polished 18K gold, it comes with a delicate chain that completes the balanced and understated appearance. The pendant’s clean design showcases the bright diamond, making it a versatile and elegant addition to any jewelry collection.
- Custom carat options up to 10 carat total let you choose the perfect diamond size for your style.
- Lab-grown diamonds of excellent cut, VS1 or better clarity, colorless D-E-F guarantee clear brilliance and lasting quality.
- IGI, IDT, HRD, SGL, GIA certificates confirm the authenticity and exceptional standards of each pendant.
- Available customization in white, yellow, and rose 18K gold ensures the pendant suits your personal preference.
- Diamond cuts include round, oval, cushion, pear, radiant, emerald, marquise, asscher, princess, heart, and multishape for a range of design possibilities.
- Complementary express shipping speeds delivery directly to your door.
- Complementary signature gift packaging provides a ready-to-gift presentation.
- Natural diamond option available.
This pendant’s distinctive halo design surrounds the round cushion diamond with a circle of smaller stones, enhancing its size and sparkle through the floating setting. The halo adds depth and brightness, while the floating style creates a subtle separation from the chain, giving a light and modern effect. The polished 18K gold setting pairs seamlessly with the delicate chain, ensuring the whole piece maintains a sleek, understated elegance. The combination of the classic cushion shape with the halo and floating pendant style results in a jewelry piece that feels both timeless and contemporary. Looking for something unique? Our jewellery specialists can help you personalise this design or create a completely custom pendant tailored to your vision.
Each Round Cushion Halo Floating Pendant Lab Diamond Necklace (16 in.) 18K Gold is handcrafted in solid 18K gold and set with lab-grown diamonds chosen for their exceptional cut, brilliance, and VS1 or better clarity. Every pendant is made to order and includes a delicate chain as a standard feature. You can customize the diamond shape, carat weight, and metal color to suit your taste within the available options. This design is also available with GIA-certified natural diamonds for those who prefer natural stones.
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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.
































