We welcome customers to our visitors suite in Kingswood, Surrey by appointment. We are located within the British Pobjoy Mint facility, which is approximtaely fourteen miles south of central London. We do not operate traditional high street stores.
Our location is just two miles from the M25 London orbital motorway. A regular train service to London operates from nearby Kingswood mainline rail station.
Derek Pobjoy, our chairperson, started his professional career in the industry as a trained gemologist and diamond cutter. His extensive experience and knowledge of diamonds informs the guidance and advice we provide our customers.
We also keep abreast of changing trends in demand, pricing and industry practices - such as the "hearts and arrows" diamond cut and advances in lab grown diamond production techniques - so as to provide you with unparalleled resources when making your purchasing decision.
We welcome any questions you may have in seeking your ideal diamond.
Do you provide valuations?
No. We can however refer you on to a formally qualified specialist or you can search the National Association of Jewellers (NAJ) site for an up to date list.
Yes. Every item of fine jewellery and loose diamonds published on our site can be purchased online using our secure checkout process.
Please bear in mind that many items displayed, such as diamond set eternity and engagement rings, are made to order and sized to fit. Please see our product pages for details or contact us to confirm expected timelines.
If you wish to add any comments to your order you can do this in the notes section at checkout.
Klarna Pay In Three is available subject to terms and conditions for checkout values up to £1,000.
This payment scheme enables you to pay one third of the value when placing the order, using your preferred debit card.
One month later a second payment of the same amount is automatiucally debited from your payment card, with the third and final payment deducted at the end of month two. There are no fees or interest charges.
For purchases of diamond rings, you may be elgible for interest free deferred monthly payments by direct debit, on up to 50% of the purchase value. Subject to status. Tems and conditions apply.
Our policy is not to encourage spending more than you can comfortably afford to repay.
Yes. All the certified diamonds we sell have been screened and sourced from legitimate sources not involved in funding conflict, incompliance with UN Resolutions and corresponding national laws of the United Kingdom. Our sources guarantee that thesediamonds are conflict free and confirm adherence to the WDC SoW Guidelines.
It is also possible for you to request specific geographical origins when choosing your diamond.
You can read more about our diamond sourcing in the link below.
Some gem diamonds fluoresce, most commonly blue, to the concentrated long-wave ultraviolet radiation of an ultra violet lamp.
The degree to which a diamond fluoresces is measured and recorded as an "identifying characteristic" within your diamond grading report.
To establish what effect, if any, blue fluoresecenc actually has, the GIA conducted a controlled test of multiple round brilliant cut diamonds of colour grade D through to H. Some featured faint to medium fluorescence and some did not.
Gemologists and industry professionals along with inexperienced observers were asked to identify any visual differences in appearance between the stones.
Here is what the GIA found: “For the average observer, meant to represent the jewellery buying public, no systematic effects of blue fluorescence on the face-up appearance of the groups of diamonds were detected. Even experienced observers did not consistently agree on the effects of fluorescence from one stone to the next.”
Typically, brilliant cut diamonds with medium or strong fluorescence will be priced very slightly lower than equivalent cut, grade and carat weight diamonds without fluorescence.
Pobjoy Diamonds recommends choosing diamonds between colour grade D and H that have no or faint fluorescence.
In the case of smaller carat weights of colour H to J, some faint or even medium blue fluorescence is generally preferrable and may actually raise the overall appearance up a notch.
You would be most unfortunate if your diamond were to crack or chip.
However, a diamond is not entirely indestructible.
Diamonds with narrow pointed extremities, such as marquise or pear shape, do need to be set in such a way that they are well protected from knocks.
That is why we insist on using only the most robust prong settings, designed to adequately embrace these points and mitigate against damage.
Other diamond shapes are not entirely immune, however, to potential damage either.
Any larger carat weight diamond in an elevated setting will be marginally more exposed to trauma if worn without care. A diamond may contain, for example, slight fissures which can occur naturally during the formation process.
If the diamond suffers an especially violent trauma or repetitive, acute knocks against a very hard surface, this could cause damage to the stone.
Therefore, when combined with the risk of loss or theft, we do strongly recommend that you maintain adequate insurance cover of your diamond at all times.
Melee diamonds are very small carat weight diamonds used in diamond jewellery and in the halos and shoulders of some diamond rings.
They are typically 0.25 carat (25 "points") or less.
Nowadays melee diamonds used in high quality jewellery are full cut diamonds. So they are essentially the same as larger diamonds, just smaller.
As with larger diamonds, they are graded by colour and clarity. The precision of their cut is just as important as it is with a larger diamond.
Typically, melee diamonds are traded within the industry in one carat packages. One carat of 10 point D-E colour/VS clarity melee diamonds will be much more valuable than one carat of 10 point H-I colour/Si clarity stones.
Are larger size melee diamonds much more valuable than smaller ones?
Larger melee diamonds are of course more valuable than smaller ones of the same colour and clarity.
But more specifically, one carat weight of ten F/VS grade melee diamonds (10 points each) is more valuable than one carat weight of twenty F/VS grade melee diamonds (5 points each).
As with larger diamonds of similar grade and overall specification, the increase in price in relation to carat weight is exponential rather than linear.
How do I know if I am buying the right size jewellery?
Within our product pages you can usually see measurements for each item expressed in inches and/or centimeteres.
If this is unclear or not provided for any reason, please do contact us and we will clarify these details for you.
To check your wrist size and to see the drop of a necklace when worn, just check out our sizing tools.
Can a diamond expert tell the difference between a lab grown and an earth created diamond?
Not with the naked eye nor with standard diamond inspection and verification equipment.
Under magnification of at least ten times, the lab grown certificate number nano inscribed around the girdle (the widest part of the stone) may be legible. The accompanying grading certificate is also of a different colour combination than the equivalent earth grown diamond report.
Otherwise, the only way a lab diamond can be told apart from the earth created variety is by using highly specialised fluorescence spectropscopy equipment.
Yes. You can search over 200,000 ethical lab diamonds on our site, each one certified by either the IGI or GIA.
As with earth created diamonds, you can choose between popular diamond shapes, specify colour and clarity grades and the carat weight you prefer. All our pricing includes VAT and insured free delivery within the UK.
Or you can arrange an appointment to our visitors suite and we will guide you through the process.
We also hold a selection of premium grade stones which are available for next day delivery.
How can I be sure my lab grown diamond will not look different over time?
The chemical composition of a lab diamond is the same as an earth created diamond, neither of which change appearanceover time.
For added assurance, it should be noted that the first lab grown diamonds were actually produced in the 1950's and have displayed the same enduring qualities as mined diamonds ever since.
Are lab grown diamonds really more ethical and sustainable to create?
Lab diamonds are created under controlled conditions and without directly extracting or disrupting the earth's natural resources.
Critics point out that the energy consumed in the growing processes, especially the HPHT technique, undermines the sustainability credentials of the lab grown diamond.
But as each process becomes increasingly efficient, this issue becomes less relevant.
Lab grown diamond enthusiasts point out that the amount of earth removed in the process of mining a single carat diamond is several tonnes, in addition to the energy consumed and the sometimes risky working conditions.
Do you offer bespoke services for lab grown diamonds?
You decide which type of diamonds or coloured gemstones to incorporate in to your bespoke design.
What 's the difference between customised and bespoke?
Most of our diamond engagement and eternity ring collection designs are made to your choice of precious metal, ring size, diamond size/grade and personalised message. In these respects they are customised.
Bespoke commissions are designed by you or by Pobjoy Diamonds to your brief. Once the final design and materials to be used are agreed, your bespoke piece is created by us uniquely for you.
Most orders within the UK are sent free of charge through Royal Mail. Larger and higher price orders are despatched for next day delivery and must be signed for.
Most item/s ordered are mailed tracked in our letter box friendly cushioned packaging without the need for signing. No branding is visible externally for security reasons. If you require special delivery arrangements please do contact us.
Orders to be shipped to outside of the UK may be subject to a small surcharge passed on to you at cost.