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Why Ascot Diamonds

Since 1978 Ascot's has provided clients with excellence, knowledge and value in a dignified and engaging atmosphere.

The Ascot diamond inventory represents the 'best of the best' diamonds from around the world and less than 5% of all diamonds produced meet the brilliance, proportion and value standards demanded by Ascot.

We invite you to visit an Ascot showroom where clients receive a priceless education and compare diamonds from the most carefully selected and diamond inventory in the world.


Ascot Fine Jewelry

Ascot is proud to be the largest distributor in the US for the magnificent Catherine Ryder collection of fine jewelry. For over 35 years Catherine Ryder pieces have been sought after by discerning buyers for their impeccable craftsmanship and exceptional design.

Only the most highly regarded jewelry brands in the world compare favorably with the Catherine Ryder collection.

We look forward to meeting with you in an Ascot showroom where our experts will work hard to make you a customer for life.


Reputation is Everything    Conflict Free Diamonds


Ascot Diamonds
(est. 1978)

Ascot Diamonds Guarantees

  • Diamond prices competitive with any source including online.
  • A priceless education in a professional atmosphere.
  • The most carefully selected diamond inventory in the world.
  • Jewelry quality standards comparable only with the finest brands.

Knowledge

We invite you to visit an Ascot showroom where in a comfortable environment clients receive a priceless education and choose their diamond from the most carefully selected diamond inventory in the world.

Value

Diamonds cost no more at Ascot than from any other source including online and every diamond in Ascot's vast inventory is scrutinized by GIA graduates for brilliance, proportion and 'correct value' before being offered to our customers.

Visit an Ascot Showroom

Visit an Ascot showroom to receive a priceless education and view diamonds from the most meticulously selected diamond inventory in the world.

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Reputation is everything.
Conflict Free Diamonds.

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Different Diamond Certificates – what is the difference?

Compare certificates from 3 reputable US laboratories:

• GIA = Gemological Institute of America

• EGL.USA = European Gemological Laboratory [USA]

• AGS = American Gem Society

GIA grading standards are stricter than 'EGL US' or AGS and the same diamond will usually receive one color grade and possibly one clarity grade higher from EGL.US or AGS than from the GIA.

Ascot Diamonds

Information you should know:

1.] EGL.US and AGS certified diamonds should always be priced lower than GIA equivalent certificates [same weight, cut, color, and clarity]; it would be unethical to represent these 3 laboratory certificates as being equal in value.

2.] Diamond laboratories, whether GIA, EGL.US or AGS do not guarantee the desirability or value of any diamond. Correct value can only be calculated by professionals with current market knowledge and the skills to consider many factors; certificate origin is just one of these factors.

3.] All Diamond Laboratories [including the GIA] will certify any diamond submitted for grading irrespective whether the stone is beautiful or not. There can be a dramatic difference in the value and desirability of 2 diamonds with identical certificate, color and clarity grades.

4.] Provided a diamond has been valued correctly, no harm is done if the same diamond has been certified by the GIA, EGL.US or AGS. The appropriate value for the diamond remains the same.


GIA, EGL.US, AGS: Color Grades:

All three laboratories describe color in these broad categories:

• Colorless = D, E, F

• Near colorless = G, H, I, J

• Distinct color = K to Z

They disagree on where each grade should fall on the color spectrum and therefore the identical diamond submitted to the GIA, AGS or EGL.US will rarely get the same color grade.

Diamond color grades attempt to describe the amount of color present in each stone. It is commonly thought that the amount of color in any diamond is measured by how much yellow is in the stone and while this is true for diamonds with a yellow ‘core color’ there are many diamonds with a core color that could be light brown, blue, green, gray, pink etc.

The GIA typically downgrades diamonds not strictly on a ‘yellow spectrum’ by one color grade whereas the other 2 laboratories often consider the absence of yellow a positive element and upgrade the best examples of these diamonds by one color grade.


All 3 laboratories grade color with diamonds facing down, however EGL.US and AGS place value on how each stone faces up because this [they contend] is the way diamonds are ultimately seen.


GIA, EGL.US, AGS: Clarity grades:

Diamond laboratories grade clarity based on the quantity, size and position of inclusions in a diamond under 10 x magnification.

GIA clarity grades may be one clarity grade stricter than EGL.US or AGS however it would not be unusual for all 3 to be identical.


Diamonds are the most intriguing and brilliant of all gemstones. Select a company that truly cares about the brilliance, cut and proper value of every diamond they offer.

We invite you to visit an Ascot showroom where in a professional atmosphere clients enjoy a priceless education and compare diamonds from the most meticulously selected diamond inventory in the world.

Compare GIA certified diamonds

GIA certified diamonds with similar grades are rarely equal in value.


Example 1:

(see large view)


Diamonds


Based on GIA certificates alone, the 1.71 F/VS2 diamond on the left should be more valuable than the 1.70 G/SI1 on the right.


A side by side comparison however, reveals that the 1.70 G/SI1 on the right has a larger face, is more brilliant and is the more beautiful, valuable diamond.


GIA Diamond grades alone are not a reliable indicator for brilliance, cut or value.


Example 2:   The diamonds below have identical GIA grades


Color: I
Clarity: VS1
Polish: Excellent
Symmetry: Excellent
Cut: Excellent


Why is diamond 'B' approximately 20% more valuable than diamond 'A'?


(see large view)


Diamonds


1. Better proportion and ‘face size'.
Diamond B = 7.58mm: Diamond A = 7.41mm.


2. Diamond B on the right is whiter even though both diamonds are graded GIA color 'I'.
Stronger and weaker examples of the same color grade is a constant in diamonds and must be considered when assessing proper value.


3. The inclusions in diamond A are located in the center of the diamond (circled).
In diamond B the inclusions are smaller, located towards the outside edge [circled bottom left] and represent a better example of the same VS1 clarity grade.


At Ascot every diamond is scrutinized for brilliance, proportion and value before being added to our inventory; less than 5% of all diamonds produced meet our demanding standards.


We invite you to visit an Ascot showroom where in a comfortable environment clients receive a priceless education and choose their diamond from the most carefully selected diamond inventory in the world.


Learn more:    Compare EGL Diamonds

Compare EGL diamonds with identical grades


Both diamonds below have identical EGL grades:


Color: G
Clarity: VS1
Polish: Excellent
Symmetry: Excellent
Cut: Excellent


Why is the diamond on the right approximately 20% more valuable


(see large view)


Diamonds


1. Weight distribution:
The stone on the right has been cut with better proportion and has a distinctly larger face.


2. Color:
The 1.65 carat stone on the right is a better example of an EGL color G with whiter brilliance.


3. Brilliance:
The 1.65 carat is clearly more brilliant and the more valuable diamond.


At Ascot every diamond we own is scrutinized for brilliance, proportion and value before being offered to our clients; less than 5% of all diamonds produced meet Ascot's demanding standards.


We invite you to visit an Ascot showroom where in a comfortable environment clients receive a priceless education and choose their diamond from the most carefully selected diamond inventory in the world.


Learn more:    How to Value a Diamond

How to Value a Diamond


The single most important piece of advice all diamond buyers should know:


Never purchase a diamond based upon certificate grades alone. Two diamonds with identical certificate grades are rarely equal in brilliance or value.


Example 1:   The two diamonds below have identical GIA grades.


Color: I
Clarity: VS1
Polish: Excellent
Symmetry: Excellent
Cut: Excellent


Why is diamond B approximately 20% more valuable than diamond A?


(see large view)


Diamonds


1.] Diamond ‘B’ has better proportion evident in the larger ‘face size’.

Diameter measurements: A = 7.41mm:   B = 7.58mm:


2.] Diamond ‘B’ is slightly whiter and more brilliant than ‘A’ even though both stones are graded GIA 'I' color.

Better and weaker examples of the same color grade is not unusual and this must be taken into account when calculating correct value.


3.] The inclusions in diamond ‘A’ are located in the center (circled) whereas in diamond ‘B’ the inclusions are smaller and located towards the outside edge [circled bottom left].


Diamond ‘B’ is a more valuable example of a VS1 clarity grade.


At Ascot every diamond is scrutinized for brilliance, proportion and correct value before being added to our inventory; less than 5% of all diamonds produced meet Ascot’s demanding standards.


Example 2:


In rare instances an EGL certified diamond may be more valuable than a GIA stone with the same grades:


The diamonds below have identical grades from the GIA and EGL:


Color I    Clarity VS1


We know GIA grades are stricter than EGL and therefore it would seem reasonable to assume the GIA diamond would be more valuable.


When we compare the 2 stones ‘side by side’ however, a different reality unfolds.


(see large view)



The GIA stone is considerably smaller than the EGL; clearly this diamond has been cut to maximize weight rather than ‘face size’ and brilliance.


The ‘face size’ on this GIA diamond is appropriate for a 1.75 carat rather than a 2.25 carat. Weight has been left on the underside of this diamond making it heavier but not larger where it matters [face size].


Please note GIA 'Excellent' grades for both Polish and Symmetry? Difficult to understand...


In contrast the EGL USA diamond on the right is beautifully cut, brilliant and has a face size that relates correctly to the carat weight.


A GIA certificate is no guarantee that a diamond is cut, graded or valued correctly. We advise diamond buyers to seek out a diamond company with the knowledge, reputation and skills essential to determine the brilliance and correct value for each stone.


We invite you to visit an Ascot showroom where in a comfortable environment clients receive a priceless education and choose their diamond from the most carefully selected diamond inventory in the world.


Learn more:       EGL vs GIA

Catherine Ryder

Ascot is proud to be the largest distributor in the US for the extraordinary Catherine Ryder collection of fine jewelry.



Impeccable craftsmanship and exquisite designs have been the hallmarks of the Catherine Ryder collections for over 35 years.


Only the most highly regarded jewelry names in the world compare favorably with the Catherine Ryder brand.


We invite you to visit an Ascot showroom and view firsthand the magnificent designs and extraordinary craftsmanship in every Catherine Ryder piece.