An old cut diamond ring by Hancocks. The handcrafted ring is set to the centre with a 1.78ct antique oval cut diamond within a platinum double claw setting, between tapered baguette shoulders bezel set in platinum, all to an 18ct yellow gold band with a square profile.
£28,500.00
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1.78ct F VS2 oval cut diamond - with GIA certificate
2 x tapered baguette cut diamonds, combined total weight 0.20ct
Setting
18ct yellow gold and platinum
Dimensions
UK finger size L, US size 5.75 (can be made to fit any size)
Head dimensions (inclusive of shoulders): 19mm x 14mm
Band width: 1.6mm
Weight Description
3.4 grams
REF
130525
Discover this Jewel
Oval Cut
First referenced in the late 1800s and early 1900s, the oval diamond enjoyed a heyday during the 1950s and 60s, falling out of favour until the turn of the millennium and now once again gaining in popularity.
It evolved out of the old European and round brilliant cuts and appeals to those who prefer a more elongated shape but still want the life and sparkle that brilliant cuts give.
The oval also has the advantage of a larger surface area than a round stone of equal weight meaning they can give the impression of being a higher carat weight than they really are.
The shape is particularly flattering on the hand, drawing the eye along the finger and making it seem longer.
When looking at oval diamonds, symmetry and proportion are of particular importance.
Whether you prefer a shorter wider stone or a longer thinner one is up to you but have a good look at the outline of the shape and make sure it is even and symmetrical.
The most famous oval diamond is probably the Koh-i-Noor which weighs in at an impressive 105cts and is part of the British Crown Jewels.
More recently, this lovely shape has been making its mark in the world of celebrity engagement rings and can be seen sparkling on the fingers of Blake Lively, Kourtney Kardashian and Hailey Bieber.
The oval also has the advantage of a larger surface area than a round stone of equal weight meaning they can give the impression of being a higher carat weight than they really are.
The shape is particularly flattering on the hand, drawing the eye along the finger and making it seem longer.
When looking at oval diamonds, symmetry and proportion are of particular importance.
Whether you prefer a shorter wider stone or a longer thinner one is up to you but have a good look at the outline of the shape and make sure it is even and symmetrical.
The most famous oval diamond is probably the Koh-i-Noor which weighs in at an impressive 105cts and is part of the British Crown Jewels.
More recently, this lovely shape has been making its mark in the world of celebrity engagement rings and can be seen sparkling on the fingers of Blake Lively, Kourtney Kardashian and Hailey Bieber.
The oval also has the advantage of a larger surface area than a round stone of equal weight meaning they can give the impression of being a higher carat weight than they really are.
The shape is particularly flattering on the hand, drawing the eye along the finger and making it seem longer.
When looking at oval diamonds, symmetry and proportion are of particular importance.
Whether you prefer a shorter wider stone or a longer thinner one is up to you but have a good look at the outline of the shape and make sure it is even and symmetrical.
The most famous oval diamond is probably the Koh-i-Noor which weighs in at an impressive 105cts and is part of the British Crown Jewels.
More recently, this lovely shape has been making its mark in the world of celebrity engagement rings and can be seen sparkling on the fingers of Blake Lively, Kourtney Kardashian and Hailey Bieber.
Carat
The term carat refers to the weight of a diamond which naturally impacts its size.
One carat is equal in weight to a fifth of a gram and each carat can be divided into one
hundred points.
Therefore a diamond weighing one and three quarter carats would be written as 1.75
carats and one weighing 0.70 carats would be said to weigh 70 points.
The term ‘carat’ comes from the word carob because historically the seeds of the carob
tree were used by traders as a means to judge the weight of gemstones.
The seeds of this tree were relatively uniform in weigh at around 0.2 grams so they were
used as a comparison to gauge the weight of gems.
Today, this C is often the first thing someone asks about but it is worth remembering
that not all diamonds that weigh the same will look the same size to
the eye because it will depend on the cut of the stone and particularly its depth.
With regards to the impact of weight on price then the price per carat will obviously
rise as the carat weight increase.
However, it must be noted that as larger diamonds are rarer than smaller ones the price
does not rise evenly,
for example a 2ct diamond is not simply double the price of a 1ct diamond.
0.5CT
0.5 carat
1.0CT
1 carat
1.5CT
1.5 carat
2.0CT
2 carat
3.0CT
3 carat
4.0CT
4 carat
5.0CT
5 carat
6.0CT
6 carat
(Diagrams not to precise scale)
0.5CT
0.5 carat
1.0CT
1 carat
1.5CT
1.5 carat
2.0CT
2 carat
3.0CT
3 carat
4.0CT
4 carat
5.0CT
5 carat
6.0CT
6 carat
(Diagrams not to precise scale)
Today, this C is often the first thing someone asks about but it is worth remembering that not all diamonds that
weigh the same will look the same size to
the eye because it will depend on the cut of the stone and particularly its depth.
With regards to the impact of weight on price then the price per carat will obviously rise as the carat weight
increase.
However, it must be noted that as larger diamonds are rarer than smaller ones the price does not rise evenly,
for example a 2ct diamond is not simply double the price of a 1ct diamond.
Colour
Perhaps a little confusingly, the colour of a white diamond is actually judged by its
lack of colour. The vast majority of diamonds have a slight hint of yellow to
them, some more noticeable than others. The less of this yellow tint a diamond has, the
whiter and rarer it is. Diamonds are colour graded using an alphabetical
scale starting at D (pure white) moving sequentially down the alphabet to Z (light
yellow). It is the presence of nitrogen within a diamond that causes the yellowish
tint, the more nitrogen, the more yellow the diamond will appear.
In terms of how this affects price, essentially, the whiter the diamond and higher the
colour grade the greater the value of the diamond. However, it is important to
remember that a lower colour grade does not equate to a lower quality, the grade is a
measure of rarity, the whiter stones are simply rarer and therefore command
higher prices.
The chart below shows the colour grading scale used by the GIA, the Gemmological
Institute of America.
D
Exceptional White +
E
Exceptional White
F
Rare White +
Colourless
G
Rare White
H
White
I
Slightly Tinted
J
Slightly Tinted White
Near Colourless
(Diagrams not to precise scale)
D
Exceptional White +
E
Exceptional White
F
Rare White +
Colourless
G
Rare White
H
White
I
Slightly Tinted
J
Slightly Tinted White
Near Colourless
(Diagrams not to precise scale)
In terms of how this affects price, essentially, the whiter the diamond and higher the colour grade the greater
the value of the diamond. However, it is important to
remember that a lower colour grade does not equate to a lower quality, the grade is a measure of rarity, the
whiter stones are simply rarer and therefore command
higher prices.
The chart below shows the colour grading scale used by the GIA, the Gemmological Institute of America.
Clarity
The term clarity refers to the presence of small inclusions inside the diamond or
blemishes on its surface. These are a natural part of the diamond and include
features such as tiny crystals and feathers. For the most part these formed with the
diamond billions of years ago during its creation deep in the earth’s mantle
under intense heat and pressure. The clarity grading scale ranges from ‘Flawless’ down
to ‘Included’. Determining a clarity grade depends on several considerations
such as how many inclusions a diamond has, how big they are, what sort they are and what
position they are in i.e. right in the centre of the stone or over at the
edge.
All these factors are taken into account and a judgement is made as to how detrimental
they are to the overall appearance of the diamond. It is worth remembering
that, unlike colour grading, clarity grading is done under 10x magnification with a
microscope so any inclusion in a diamond will be far less noticeable to the naked
eye than it is to the diamond grader. Ultimately the cleaner the diamond, the fewer the
inclusions and less impact they have – the better the clarity grade will be.
The table below shows the grading system used by the GIA.
FL
Flawless
No inclusions or blemishes of any sort are visable to a skilled diamond
grader using 10x magnification.
IF
Internally Flawless
No inclusions and only blemishes are visable to a skilled diamond grader
using 10x magnification.
VVS
Very Very Slightly Included
Inclusions are difficult for a skilled diamond grader to see using 10x
magnification.
VS
Very Slightly Included
Inclusions are noticeable to a skilled diamond grader to see using 10x
magnification.
SI
Slightly Included
Slight inclusions are noticeable to a skilled grader using 10x magnification.
(Diagrams not to precise scale)
FL
Flawless
No inclusions or blemishes of any sort are visable to a skilled diamond grader using 10x
magnification.
IF
Internally Flawless
No inclusions and only blemishes are visable to a skilled diamond grader using 10x
magnification.
VVS
Very Very Slightly Included
Inclusions are difficult for a skilled diamond grader to see using 10x magnification.
VS
Very Slightly Included
Inclusions are noticeable to a skilled diamond grader to see using 10x magnification.
SI
Slightly Included
Slight inclusions are noticeable to a skilled grader using 10x magnification.
(Diagrams not to precise scale)
All these factors are taken into account and a judgement is made as to how detrimental they are to the overall
appearance of the diamond. It is worth remembering
that, unlike colour grading, clarity grading is done under 10x magnification with a microscope so any inclusion
in a diamond will be far less noticeable to the naked
eye than it is to the diamond grader. Ultimately the cleaner the diamond, the fewer the inclusions and less
impact they have – the better the clarity grade will be.
The table below shows the grading system used by the GIA.
Cut
The term cut is often used to refer to a diamond’s overall shape or style of faceting
but when it comes to diamond grading, what matters is the quality of the cut
rather than its style. We are looking to judge the particular sizes and angles of the
facets (the flat faces polished onto a gem) and their relationship to each other
because it is this, more than anything else, that will dictate the life, sparkle and
overall beauty of a diamond.
The proportions of a diamond affect the way it interacts with the light that enters it,
determining how much of that light is returned to the viewer. A poorly cut
diamond will allow light to leak out of the back and will look dull in comparison to a
well cut one that will return the most amount light and therefore look bright
and sparkling. There are several factors that a GIA diamond grader will assess before
assigning a cut grade. The three below have the most impact on the overall
appearance of the diamond to the naked eye when viewed face up, ie through the table.
1. Brilliance: This refers to the reflection of white light from both the surface and
the inside of a diamond.
2. Fire: This is the term we give to the coloured flashes you see in a diamond resulting
from the splitting up of white light into its spectral colours.
3. Scintillation: This is the sparkle a diamond displays, the pattern of light and dark
flashes caused by reflections of light as a diamond is moved. Other
considerations include symmetry and the quality of the polish which impacts how well the
light reflects off the surface of the diamond.
(Diagrams not to precise scale)
(Diagrams not to precise scale)
1. Brilliance: This refers to the reflection of white light from both the surface and the inside of a diamond.
2. Fire: This is the term we give to the coloured flashes you see in a diamond resulting from the splitting up
of white light into its spectral colours.
3. Scintillation: This is the sparkle a diamond displays, the pattern of light and dark flashes caused by
reflections of light as a diamond is moved. Other
considerations include symmetry and the quality of the polish which impacts how well the light reflects off the
surface of the diamond.
The Silent 5th C! Certificate
For diamonds, the only laboratory we trust for certificates is the GIA (Gemological
Institute of America) so you will find all our diamonds over 0.75cts come with a GIA
certificate as standard. This means that you don’t just have to take our word on the
quality of the stone you are looking at, you have an independent expert opinion in black
and white that will be yours to take away with you at point of purchase. This will
confirm the colour, clarity, carat weight and cut grade of the diamond, features known
as the 4 C’s. If you are unfamiliar with these characteristics, we have explained them
all here (Henry – can this be a hyperlink to the 4C’s info page) along with how they
impact value but not necessarily beauty.
About The Maker
Hancocks
Within the archives of the London jewellers Hancocks, there exists the most extraordinary book. Large, heavy and showing distinct signs of age it is filled with page after page of diary entries documenting almost one hundred and twenty years of not only company history but social history as well.
