Sale Now On - 15% off Made to Order items and 30% off Stock Items* - Terms Apply

Sale Now On - 15% off Made to Order items and 30% off Stock Items*- Terms Apply


This insurance is optional and will meet the demands and needs of a UK resident requiring insurance for jewellery or watches in the United Kingdom, Channel Islands and Isle of Man plus up to 30 consecutive days elsewhere in the world any one trip.

The insurance is administered by T H March & Co. Limited, Hare Park House, Yelverton Business Park, Yelverton, Devon, PL20 7LS, and they are authorised and regulated by the Financial Conduct Authority (FCA). This may be checked on the Financial Services Register on the FCA’s website.

In the unlikely event that you may wish to make a complaint, this should be directed to T H March. The complaints procedure is detailed in your insurance documentation.

It is important you read the certificate as this details the terms, conditions and any restrictions in cover.

Click here to download the insurance product information document (PDF)

Protection your jewellery deserves

The insurance value is higher than our selling price and is the estimated replacement cost if our Diamond Heaven discount were no longer available at the time of a claim.

1 year cover for £62.73 inclusive of IPT

3 year cover for £114.74 inclusive of IPT

Our UK customers can insure their purchase with MarchGuard cover from T H March, providers of specialist jewellery and watch insurance since 1887.

Main Policy Benefits
  • No excess on claims
  • Simple and easy to arrange
  • Accidental loss*
  • Accidental damage*
  • Theft cover*
  • Worldwide cover (up to 30 consecutive days abroad)
  • All claims are processed through Diamond Heaven (repair or replacement)
  • For 3 year policies, protection is included against price inflation on replacement items (see certificate terms for details)

* Subject to terms and conditions of the policy

Click here to view / download the insurance product information document (PDF)
Click here to view / download the full policy wording document (PDF)

Please be aware:
  • This insurance is for UK residents only
  • There is no cover for wear and tear
  • There is no cover for items left in unattended baggage or in an unattended vehicle
  • There is no cover for any free gifts or accessories that may have come with the purchase
  • There is a 14-day cooling off period
  • This insurance is NOT renewable after the initial term
  • The policy wording provides full details of cover and exclusions and you are requested to read this.

Important notice: Whilst many home insurance policies may cover certain pieces of jewellery or watches we would advise all customers to check their policies closely. Certain household policies have restrictions on watch and jewellery cover, and may include limitations such as, no accidental damage cover, no cover outside of the home or cover for holidays abroad. They may also restrict your choice of jeweller for repair or replacement. In the event of a household insurance claim, you may be expected to pay an policy excess and any claims made may affect your future premiums.

Eternity Ring Buying GuideEternity Ring Buying Guide



A diamond necklace or pendant is a perfect gift, whether it be for an anniversary, birthday or even just as a present to yourself. It’s important to choose the right design for your personal style and for the occasion you plan on wearing the necklace. This guide is here to help you find the perfect necklace or pendant for you.

Eternity Ring Style


A necklace is the name for the jewellery worn around your neck, whilst the pendant is the piece of jewellery that can hang from the necklace. A pendant is a beautiful accessory that is available in a whole host of different shapes, sizes, styles and colours and is usually the more popular of the two. A necklace can be seen more as an extravagant item, usually seen as a row of diamonds around the neck, or a designer style.

  • Eternity Ring Style
  • Eternity Ring Style
  • Eternity Ring Style
  • Eternity Ring Style
  • Eternity Ring Style
  • Eternity Ring Style


At Diamond Heaven, we’re pleased to say we have quite a vary of styles and designs to choose from. Take a look at the designs we have available below.



When looking for a diamond necklace, one of the main factors to consider is the diamond shape. While there is multi diamond shapes available, some diamond shapes are more popular to use in diamond necklace than others.



The round cut diamond is the most popular diamond shape to be set within a diamond necklace. As a round cut diamond has more facets than any other shape, this will ensure maximum sparkle and shine.



This square cut diamond sits beautiful in a diamond necklace, giving the appearance of an almost seamless band of diamonds dancing across the finger. The princess cut diamond gives the wearer a modern and sophisticated look.



Echoing back to old-Hollywood, the rectangular facets truly show off the diamond’s clarity.



The Oval Cut Diamond elongates the finger without losing its brilliance. A versatile and magnificent diamond choice!



If you’re looking for a diamond shape to optimise the carat weight, then the Marquise Cut is your diamond of choice.



An exceptional diamond cut, reminiscent of the Art-Deco era.

Solitaire Pendant

Solitaire Pendant

Halo Pendant

Halo Pendant

Triogy Pendant

Trilogy Pendant

Design Pendant

Designer Pendant

Design Pendant

Diamond Necklace


A single diamond within a setting of your choice, a solitaire pendant is a popular style that has stood the test of time. A classic and simple look that is perfect for any occasion.


A halo pendant has a central larger diamond or gemstone centre as a focal point, encircled by a ‘halo’ of smaller delicate diamonds. A halo pendant provides a little extra luxury and sparkle to the wearer.


Featuring three beautifully chosen diamonds set in either a vertical or horizontal prong set design mount, a trilogy pendant is a perfect choice to say, “I Love You”. Available in a range of setting styles and metals.


For a dramatic and showstopping look, a diamond necklace is the perfect choice. A continuous line of diamonds in a setting style and metal of your choice, a diamond necklace will take any simple look to the next luxurious level.


The 4 C’s- Cut, Clarity, Colour and Carat- are all important elements to take into account when purchasing your diamond pendant / necklace. Here’s a brief recap on what each one means:


Carat refers to the weight of a diamond. Diamonds are all weighed in metric carats rather than grams or ounces. This is a standard industry practice around the world.

Diamond is expressed to the hundredth of a carat. Carat weight of less than a carat is expressed in points. So, for example, a 0.75ct diamond will be 75 points. Most jewellers will refer to carat weight in this terminology.

Another way to explain this would be using pounds, 100 pence equals 1 whole pound. Therefore 50pts will be 0.50ct and so on.

A common misconception is that it refers to the physical size of a diamond, which is incorrect. The diamond weight does not govern the size of stone.

We always recommend trying a range of carat weight on to determine which will be best for you. This way you will also be able to assess the visible size.


When searching for your perfect diamond, one of the C’s to consider during this process is the Colour.
Usually, people tend to choose a diamond with the least amount of colour, as it shows the purity of colour and rarity of quality.

The diamond colour grading system is based on an alphabetised system, starting from ‘D’, meaning the diamond is completely free of any colour, all the way to ‘Z’, meaning there is a visible tint of colour in the diamond.

To see a difference in colour between two diamonds, you usually have to compare at least three colour grades
(i.e, E Colour and a H Colour).


This will determine the number of natural inclusions that are inside the diamond. The higher the quality (such as VS1 or VVS1) will mean there are less inclusions, and the light is able to refract out of the diamond better than a lower clarity (such as SI2 or I1).


Full Rubover Full Rubover


Full Rubover Full Rubover


Full Rubover Full Rubover


The way the diamond is cut will determine the sparkle and brilliance of the diamond. An excellent cut will reflect the optimum amount of light that enters the diamond. Lower quality cuts, such as good or poor, won’t reflect as much light and lack lustre.


The metal you choose should suit not only your partner’s style, but also showcase the diamond. Yellow Gold is a traditional choice and warming to most skin tones.


Platinum has become one of the most popular metals to be used in diamond pendants and necklaces. Platinum is a naturally white coloured metal, meaning it will not tarnish and lose its brilliance. Platinum is also a very rare metal that is only mined in a few select areas of the world, making it a more expensive metal in comparison to Gold and Palladium.

Platinum will also enhance the colour of a diamond and its natural sparkle.

Platinum is usually hallmarked at ‘950’, meaning it is 95% pure platinum with the remaining 5% usually being palladium, iridium ruthenium and other alloys. Platinum is also a great choice for those who have contact allergies, as the purity of the platinum reduces the likelihood of any irritation during wear.

As with all metals, Platinum can scratch, however with proper care the wear should be minimal and can be polished again to return the metal to its original look.

18ct Rose Gold

This pink hue gold originally gained popularity in the 1920’s, then made a big comeback in the 2010’s. The unique blush tone of Rose Gold is created by mixing gold with copper. As all our gold necklaces are 18kt gold, the composition will be 75% gold, with 25% copper. A Rose Gold diamond necklace gives an elegance that not all metals can achieve.

18ct White Gold

White Gold is still an incredibly popular choice of metal for diamond necklace settings. White Gold has the same overall appearance as Platinum, however it has a brighter ‘white shine’ and is less expensive than Platinum.

White gold is naturally an off-white colour, usually with a slight yellow tint. This is because white gold is usually mixed with palladium or magnesium.

To give white gold the trademark brightness, it is plated with rhodium or iridium. This plating will wear over time and return to its natural colour, however can be polishing and replated to return the metal to its former glory.

18ct Yellow Gold

Yellow Gold is a classic and timeless metal choice for any diamond necklace. For thousands of years, yellow gold has been used in jewellery for its warmth in colour and its resistance to erosion. The colour of the gold is determined by what other metal alloys are mixed with it, such as copper and zinc.

Delivery banner


Speak to one of our agents through our website live chat

Delivery banner


Speak to us on the phone by calling 0345 222 5009

Delivery banner


Send an email to [email protected]