In stock - Delivered within 3 days
- Insured shipping worldwide
- 30 day return period
- Accompanied by an official certificate of authenticity
- Secure and trusted payment options, including iDEAL, credit card and Klarna
- Crafted and certified in line with our standards since 1840
- Carat0.09
- ColorSapphire
- CutBaguette
- Stones1
Sapphire Diamond Necklace 0.11 Carat Baguette Cut 18K White Gold
This 18K white gold necklace showcases a fine horizontal bar with a baguette-cut blue sapphire at its center, flanked by brilliant-cut diamonds. It is a complete necklace that is ready to wear. The standard chain length is 45 cm.
1 baguette-cut sapphire
A 0.09 carat baguette-cut sapphire forms the heart of the design, adding a rich touch of deep blue.
2 brilliant-cut diamonds
Two brilliant-cut diamonds, 0.02 carat in total, sit beside the sapphire and catch the light with every movement.
The diamonds have a Top Wesselton color grade and Slightly Included clarity, complementing the vivid blue of the sapphire.
18K White Gold
The necklace is made from 18K white gold, whose cool, bright tone seamlessly complements both the sapphire and the diamonds.
Worn close to the neckline, it makes a refined and subtle 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: 1
Sapphire carat weight: 0.09 carat
Number of diamonds: 2
Diamond carat weight: 0.02 carat
Total carat weight: 0.11 carat
Diamond color: Top Wesselton
Diamond clarity: Slightly Included
Design: Bar necklace
Chain: included
Standard length: 45 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.

185 years of legacy

Experience our craftmanship

Visit our boutique
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.



