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- 30 day return period
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- Crafted and certified in line with our standards since 1840
- Carat1.15
- ColorSapphire
- CutBrilliant
- Stones10
Sapphire Diamond Necklace 1.40 Carat Round Cut 18K White Gold
This 18K white gold necklace showcases a flower of round blue sapphires with a brilliant-cut diamond at its heart, joined by sapphire and diamond stations along the chain. It is a complete necklace that is ready to wear. The standard chain length is 42 cm.
10 round sapphires
Ten round sapphires, 1.15 carat in total, form the flower and dot the chain with rich touches of deep blue.
3 brilliant-cut diamonds
Three brilliant-cut diamonds, 0.25 carat in total, add a bright white sparkle to the design.
The diamonds have a Wesselton color grade and Slightly Included clarity, contrasting beautifully with the deep blue sapphires.
18K White Gold
The necklace is made from 18K white gold, whose cool, bright tone seamlessly complements both the sapphires and the diamonds.
Worn close to the neckline, it makes a refined and colorful statement for both everyday wear and special occasions.
Specifications
Collection: Royal Coster Diamonds
Product type: Necklace
Material: 18K White Gold
Gemstone: Sapphire
Number of sapphires: 10
Sapphire carat weight: 1.15 carat
Number of diamonds: 3
Diamond carat weight: 0.25 carat
Total carat weight: 1.40 carat
Diamond color: Wesselton
Diamond clarity: Slightly Included
Design: Flower with stations
Chain: included
Standard length: 42 cm
Royal Coster Diamonds
Royal Coster Diamonds is the oldest still operating diamond polishing house in the world and has been based in Amsterdam since 1840. Each necklace is carefully inspected, securely packaged, and insured during shipment.
In addition, we offer a lifelong cleaning service to help preserve the shine of your necklace and gemstones over time.

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The 4C's
The 4C's of a diamond are the four key characteristics that determine the quality and value of a diamond: cut, carat weight, color, and clarity. Together, these four characteristics are used to evaluate the quality and value of a diamond, and are considered when determining a diamond's price.
Carat
The weight of a diamond is expressed in carats and points (1 ct = 100pt). ‘Carats’ come from ‘Carob’ seeds, which were originally used for their constant weight in nature (1 ct = 0.2 g). The carat and the color are the factors that influence the most the final price of the diamond.
Clarity
The clarity is a gemstone's relative freedom from internal imperfections. These imperfections are observed with a x10 magnifier ('loupe') and affect the final value of the diamond differently.
Color
Diamonds are found in nature in different colors. White diamonds can be more or less yellow and are categorised with a letter between D (commonly known as ‘River’) to Z . The different naming systems vary depending on the certifier. Diamonds are also found in all colors; the rarest colors are classified as Fancy-colored diamonds.
Cut
The cut is the diamond’s shape. A cut grade describes the proportions of the cut and the quality of its symmetry and polish. A perfect cut makes the best sparkle.



