3 Diamond Necklace 

Our 3 diamond necklace provides a simple and classic Trilogy cluster pendant design styled with a trio of round brilliant-cut diamonds. We create each necklace individually to order, handcrafting the design from a choice of precious metals. Choose from 9-carat or 18-carat gold in white, rose and yellow gold variations. Or, for elegant luxury, choose 950 platinum, styled with a matching Venetian box chain. The chain inserts through the body of the necklace in a modern slider style emphasizing the simplicity of this modern necklace design. 

Diamond specifications for the 3 diamond necklace

By default, we create this dazzling necklace with a matching set of 3 x natural diamonds, all graded G colour and SI1 clarity. Or, choose our mount-only option which includes the 18 inch chain to set your own existing diamonds. Alternatively, talk to us about a tailored quote for lab-grown diamonds in a wide range of colour and clarity options. This design can be commissioned in several sizes, with varying carat weights according to your preference and budget. 

Diamond carat weights available for the necklace

0.30-carat trilogy necklace - set with 3 x 3mm round brilliant cut diamonds 0.10 carats per diamond. 

0.45-carat trilogy necklace - set with 3 x 3.4mm round brilliant cut diamonds 0.15 carats per diamond. 

0.60-carat trilogy necklace - set with 3 x 3.8mm round brilliant cut diamonds 0.20 carats per diamond. 

0.80-carat trilogy necklace - set with 3 x 4.2mm round brilliant cut diamonds 0.26 carats per diamond. 

1-carat trilogy necklace - set with 3 x 4.4mm round brilliant cut diamonds 0.34 carats per diamond. 

1.65-carat trilogy necklace - set with 3 x 5.2mm round brilliant cut diamonds 0.55 carats per diamond. 

For buyers who prefer an alternative trilogy arrangement with diamonds arranged in a row, please refer to our 3 tier diamond necklace and our 3 diamond drop necklace, along with other trilogy designs in our main website section of drop pendants. 

UK Ethical Jewellery and Fairtrade Gold

Ethical consumers can now enjoy Fairtrade Gold. We create commissions made from 18ct White Fairtrade Gold or 18ct Yellow Fairtrade Gold. Responsibly sourced and fully traceable, Fairtrade Gold gives UK clients the reassurance that their purchase has helped the lives of impoverished, small-scale artisanal miners in areas such as Peru. Miners receive a fair price for the gold they produce and a premium per kilogram, which benefits the development of their community. 

UK delivery and presentation

Once your diamond pendant commission has been completed, we will send out your parcel by Royal Mail Special Delivery. This next-day service delivers by courier before 1 pm the following day. Once sent, your parcel reference is emailed to you. Diamond pendants are delightfully presented in luxurious packaging, as shown below. Our main outer box is wrapped in a protective sealed wrapping to ensure your parcel arrives in box fresh condition. We also include certification where appropriate and a detailed valuation within your document wallet. 

Read more on delivery information



Packaging for your diamond pendant

In the following video, we reveal how items are sent from the Serendipity Diamonds showroom. Our video includes presentation for diamond rings, wedding rings, earrings and pendants. 

A note on diamond grading

Besides exceptional value for money, we maintain strict standards for all of our diamond pendants and for the diamonds themselves. All diamonds are cut and polished to the highest standards. We provide a minimum of a very good cut grade as standard, with excellent cut diamonds being available upon request. Most certified diamonds are GIA certified for your reassurance, GIA is the most respected authority for diamond grading. All diamonds are provided with the assurance of being 100% conflict free, and we are now able to provide upon request fully traceable diamonds in certain sizes, colour and clarity grades. For 100% ethical assurance, consider Fairtrade Gold now available for diamond pendants. All diamond solitaire pendants weighing 0.30 carats and above, selected in grades above J colour and SI2 clarity will include full certification for your reassurance.