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Ring – Yellow (Treated) Diamond Trefoil

30530
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A cluster ring principally set with one colour treated¹ round brilliant-cut diamond in a four-claw setting with a trefoil of three round brilliant-cut diamonds similarly set either side, with knife edge shoulders and joined with a plain ring shank entirely constructed from platinum, circa 2011.

£2,350.00
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Description

Ring – Yellow (Treated) Diamond Trefoil

A cluster ring principally set with one colour treated¹ round brilliant-cut diamond in a four-claw setting with a trefoil of three round brilliant-cut diamonds similarly set either side, with knife edge shoulders and joined with a plain ring shank entirely constructed from platinum, circa 2011.

 

Assessment of the Principal Diamond.

Cut: modern round brilliant.

Measuring: 4.68mm x 4.72mm (depth immeasurable).

Weight (stone weighed prior to setting): 0.40cts.

Clarity: SI2/I1.

 

Assessment of the Complimentary Diamonds (six).

Averages stated where applicable.

Measuring: 2.30mm.

Estimated total weight: 0.28cts.

Colour: G/H.

Clarity: VS2/SI1.

 

Details of the Setting.

Hallmarked: 950 platinum, Birmingham.

Sponsor’s mark: ‘DOM’ (Domino Jewellery², Vyse Street Birmingham).

Finger size: N.

Weight: 4.80g

Condition: excellent.

 

£2250.00.

 

                                                                                                                                                     

Comment(s).

¹. The colour of diamonds can be modified using sophisticated scientific techniques. “Irradiation is used frequently to alter the colour of diamonds, usually to produce from off-colour stones a wide range of attractive blue, green, brown, orange, black, and yellow colours. Neutron and electron irradiation are today the preferred irradiation techniques. Both produce uniform colouration. All the colours so produced are stable. Heating is widely used to modify the colours produced by radiation (Kurt Nassau, ‘Gemstone Enhancement’, 1984). The exact mechanism by which this change happens can be explained by examining the atomic structure of the diamond and understanding how this interacts with light. “Radiation-induced color in diamond is the result of changes caused as the radiation (whether neutrons or charged particles) passes through the stone. Collisions between these particles and the carbon atoms create vacant positions in the atomic lattice by knocking the carbon atoms out of their normal positions. These vacancies give rise to a broad region of absorption in the visible and near infrared regions of the spectrum (and a sharp peak at 741 nm, known as the GR1 band), thus creating a blue-to-green coloration. Heating of most irradiated diamonds above about 500°C in an inert atmosphere will change the blue-to-green colors to brownish or orangy yellow to yellow or, rarely, pink to red. This is the result of radiation-induced vacancies migrating through the lattice and pairing with nitrogen to create new color centres, such as H3 (503.2 nm) and H4 (496 nm) for yellow to orange, and N-V0 (637 nm) for pink to red (Thomas W. Overton and James Shigley, commentating on the work by A.T. Collins, summarised in ‘A History of Diamond Treatments’, Gems & Gemology, 2008).

 

². Domino Jewellery, established 1983, is based in Birmingham's Jewellery Quarter, with a trade counter in London's Hatton Garden, who as well as manufacturing jewellery, also supply speciality components to other manufacturing jewellers. Originally a family run business, Domino have now become part of the Heimerle + Meule Group. They are an accredited member of the Responsible Jewellery Council, and guarantee that they provide jewellery with the highest possible ethical credentials with materials that are accountable and traceable. As well as supplying traditional jewellery ranges, they also design and produce in house many award winning contemporary and innovative designs.

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Ring – Yellow (Treated) Diamond Trefoil

Ring – Yellow (Treated) Diamond Trefoil

A cluster ring principally set with one colour treated¹ round brilliant-cut diamond in a four-claw setting with a trefoil of three round brilliant-cut diamonds similarly set either side, with knife edge shoulders and joined with a plain ring shank entirely constructed from platinum, circa 2011.

Write your review
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