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Place your order by 4 PM CST today for same-day shipment as a loose stone. All orders received after 4PM CST will ship the next business day.
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Please note that all diamonds and gemstones on PJ Custom are photographed with 15x or greater magnification, making blemishes and flaws significantly more visible to the unaided eye.
WHAT IS SKETCH BOOK?
PJ Custom's Sketchbook allows you to gather your needs, wants and must-have items for a custom jewelry project! It's a fun way to answer some important information about your project while consolidating your ideas, sketches and images into an organized idea board. You can then send us your work when you're ready to start your project.
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Send us your Work!
It's helpful to browse PJ Custom and add some Wishlist items from the Inspiration Gallery, Diamond and Gemstone search pages before you start a sketchbook.
Basic Search
Results:
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Shape:
Shape :
A diamond’s shape refers to its physical form and each diamond shape is very different, possessing unique characteristics. Even though shape is not a part of the 4 C’s of Diamonds, this element will have an impact on the appearance of your diamond. Since each diamond shape is cut to different specifications, they reflect light differently, giving each shape a unique fire and brilliance.
Shape :
A diamond’s shape refers to its physical form and each diamond shape is very different, possessing unique characteristics. Even though shape is not a part of the 4 C’s of Diamonds, this element will have an impact on the appearance of your diamond. Since each diamond shape is cut to different specifications, they reflect light differently, giving each shape a unique fire and brilliance.
Carat Weight (ct):
Diamond Carat Weight
The carat of a diamond refers to its weight, and 1 carat is equivalent to 200 milligrams. Independent of a diamond’s size, two diamonds with the same carat weight may appear slightly different in size. Carat weight is often misconceived as the most important of the four Cs, but it’s important to understand and evaluate the relationship between a diamond’s carat weight and cut to get the best value out of a diamond. A better cut may often yield a larger-looking diamond, and choosing a diamond that is a few carat weight points below your ideal carat (0.49 carats vs. 0.50 carats) can translate to significant savings.
Use the slider below to understand how carat weight works.
0.25CT0.50CT0.75CT1.00CT1.25CT1.50CT2.00CT3.00CT4.00CT5.00CT
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Diamond Carat Weight
The carat of a diamond refers to its weight, and 1 carat is equivalent to 200 milligrams. Independent of a diamond’s size, two diamonds with the same carat weight may appear slightly different in size. Carat weight is often misconceived as the most important of the four Cs, but it’s important to understand and evaluate the relationship between a diamond’s carat weight and cut to get the best value out of a diamond. A better cut may often yield a larger-looking diamond, and choosing a diamond that is a few carat weight points below your ideal carat (0.49 carats vs. 0.50 carats) can translate to significant savings.
Use the slider below to understand how carat weight works.
Cut:
Cut
The cut of a diamond is what influences its natural sparkle and light performance. As the most important of the four Cs, cut quality is evaluated by a diamond’s proportion, symmetry and polish. These characteristics define how the facets of the stone interact with light. If a diamond’s cut is poor, the diamond will appear dull even if the color and clarity is flawless. A poor cut allows light to escape through other parts of the gem and prevents its best light performance, whereas a quality cut will best capture a diamond’s brilliance. When choosing a diamond, gemologists recommend selecting a stone with the highest cut grade within your budget. We recommend choosing a diamond with a grade of Very Good or Ideal.
Use the slider below to see how a diamond’s cut affects its light performance.
IdealExcellentVery GoodGoodFairPoorN/A
The most brilliant sparkle, fire and life, due to excellent symmetry and polish.
Cut
The cut of a diamond is what influences its natural sparkle and light performance. As the most important of the four Cs, cut quality is evaluated by a diamond’s proportion, symmetry and polish. These characteristics define how the facets of the stone interact with light. If a diamond’s cut is poor, the diamond will appear dull even if the color and clarity is flawless. A poor cut allows light to escape through other parts of the gem and prevents its best light performance, whereas a quality cut will best capture a diamond’s brilliance. When choosing a diamond, gemologists recommend selecting a stone with the highest cut grade within your budget. We recommend choosing a diamond with a grade of Very Good or Ideal.
Use the slider below to see how a diamond’s cut affects its light performance.
The most brilliant sparkle, fire and life, due to excellent symmetry and polish.
Total Price:
Price :
The total price of the stone found by multiplying the price per carat by the total carat weight.
Price :
The total price of the stone found by multiplying the price per carat by the total carat weight.
Color:
Color
As the second most important characteristic of a diamond, color refers to any presence of color on the stone. As you may know, natural diamonds can come in a variety of colors, but clear diamonds with a lack of color are the most popular, rare and sought after on the spectrum. Diamonds with a grade of D to F are determined to be colorless, and are therefore more valuable. Diamonds with G to I grades are difficult to detect color to the untrained eye. Ring settings with white gold or platinum are best suited with diamonds that have a higher color grade, but yellow gold settings can help conceal a diamond’s lower color grade. It is important to evaluate desired metal color and carat to best determine the diamond color grade that will maximize your budget.
Use the slider below to learn more about diamond color grades.
DEFGHIJKLM
Highest, absolutely "colorless" grade, appreciated best set in platinum or white gold. Exceptionally rare.
Color
As the second most important characteristic of a diamond, color refers to any presence of color on the stone. As you may know, natural diamonds can come in a variety of colors, but clear diamonds with a lack of color are the most popular, rare and sought after on the spectrum. Diamonds with a grade of D to F are determined to be colorless, and are therefore more valuable. Diamonds with G to I grades are difficult to detect color to the untrained eye. Ring settings with white gold or platinum are best suited with diamonds that have a higher color grade, but yellow gold settings can help conceal a diamond’s lower color grade. It is important to evaluate desired metal color and carat to best determine the diamond color grade that will maximize your budget.
Use the slider below to learn more about diamond color grades.
Highest, absolutely "colorless" grade, appreciated best set in platinum or white gold. Exceptionally rare.
Clarity:
Clarity
A diamond’s clarity determines the presence of any natural inclusions on a stone that are visible to the naked eye. Nearly all diamonds have natural inclusions, but most of them cannot be seen without magnification. A better clarity grade means that a diamond will have less, smaller inclusions and a better “eye clean” presentation. Diamonds with a grading of VS2 or higher are considered eye-clean, and flexibility on clarity will help balance your desired quality and budget. A diamond’s cut and color can help conceal these imperfections and make them nearly undetectable. For example, the detailed facets of a princess-cut diamond can hide small flaws, but an emerald-cut diamond has a larger table and less facets, making the presence of inclusions more visible. It is important to balance these characteristics against your desired diamond cut and color quality.
Use the slider below to see how diamond clarity grading works.
IFVVS1VVS2VS1VS2SI1SI2SI3I1I2I3
Flawless: No internal or external characteristics. Internally Flawless: May have external blemishes only. Both extremely rare.
Clarity
A diamond’s clarity determines the presence of any natural inclusions on a stone that are visible to the naked eye. Nearly all diamonds have natural inclusions, but most of them cannot be seen without magnification. A better clarity grade means that a diamond will have less, smaller inclusions and a better “eye clean” presentation. Diamonds with a grading of VS2 or higher are considered eye-clean, and flexibility on clarity will help balance your desired quality and budget. A diamond’s cut and color can help conceal these imperfections and make them nearly undetectable. For example, the detailed facets of a princess-cut diamond can hide small flaws, but an emerald-cut diamond has a larger table and less facets, making the presence of inclusions more visible. It is important to balance these characteristics against your desired diamond cut and color quality.
Use the slider below to see how diamond clarity grading works.
Flawless: No internal or external characteristics. Internally Flawless: May have external blemishes only. Both extremely rare.
Quantity:
Quantity :
Quantity refers to how many stones are available within the selection. Click Single to filter available single stones, or choose Matched to shop for available matched pairs of stones. Note: stone pairs are matched based on similar color hue, quality, table and depth measurements. Some matched pairs cannot be broken into single items for available purchase.
Quantity :
Quantity refers to how many stones are available within the selection. Click Single to filter available single stones, or choose Matched to shop for available matched pairs of stones. Note: stone pairs are matched based on similar color hue, quality, table and depth measurements. Some matched pairs cannot be broken into single items for available purchase.
Length:
Length :
The measure of the longest side of the stone in millimeters.
Length :
The measure of the longest side of the stone in millimeters.
Width:
Width :
The widest point along the short side, in millimeters.
Width :
The widest point along the short side, in millimeters.
(L/W) Ratio:
(L/W) Ratio :
Length (L) divided by Width (W) is the Length-to-Width ratio. This conveys how relatively square or rectangular a fancy-shaped diamond appears when viewed from the top.
Ideal Length-to-Width Ratios
Asscher: 1 to 1.05
Cushion: 1 to 1.05 (square); >1.15 (rectangle)
Emerald: 1.3 to 1.4
Heart: 0.90 to 1.10
Marquise: 1.75 to 2.25
Oval: 1.33 to 1.66
Pear: 1.45 to 1.75
Princess: 1 to 1.05
Radiant: 1 to 1.05 (square); >1.10 (rectangle)
(L/W) Ratio :
Length (L) divided by Width (W) is the Length-to-Width ratio. This conveys how relatively square or rectangular a fancy-shaped diamond appears when viewed from the top.
Ideal Length-to-Width Ratios
Asscher: 1 to 1.05
Cushion: 1 to 1.05 (square); >1.15 (rectangle)
Emerald: 1.3 to 1.4
Heart: 0.90 to 1.10
Marquise: 1.75 to 2.25
Oval: 1.33 to 1.66
Pear: 1.45 to 1.75
Princess: 1 to 1.05
Radiant: 1 to 1.05 (square); >1.10 (rectangle)
Specialty Cut:
Specialty Cut :
Brilliant:
This technique creates triangular-shaped facets that face outwards from the center of the diamond. Most often the term is used to refer to round brilliant cuts, the most popular cut.
Rose:
An antique style cut with trangular facets coming to a point (no table) and a flat bottom (no pavilion).
Step:
A cut with rows of long, rectangular facets resembling a staircase.
European:
Dating back to the 1800s, this cut possesses a circular girdle with a high crown, small table, and a large, flat culet. With 58 facets, it is the predecessor of today’s modern round brilliant cut.
Old Miner:
A cut dating back to the Victorian era that features a squarish girdle with gently rounded corners. Old mine cut diamonds have a high crown, a small table, and a large, flat culet.
Single:
A round cut with only 17 or 18 facets, as opposed to the brilliant's 57 or 58 facets, and is common for "melee" diamonds.
Flat:
An unfaceted slice, disc, or similar shape.
Grooved:
Certain shapes, particularly the princess cut, can be grooved on the edges to allow them to be "invisibly" set together (without prongs or metal in between).
Specialty Cut :
Polish:
Polish :
The polish of a diamond refers to the overall condition of a finished stone's faceted surfaces, including how smoothly the facets have been polished, whether any marks are visible from the polishing wheel, and how defined the edges of each facet are. Polish marks are almost always invisible to the unaided eye, but good polish is essential for maximum light performance.
Polish :
The polish of a diamond refers to the overall condition of a finished stone's faceted surfaces, including how smoothly the facets have been polished, whether any marks are visible from the polishing wheel, and how defined the edges of each facet are. Polish marks are almost always invisible to the unaided eye, but good polish is essential for maximum light performance.
Symmetry:
Symmetry :
A diamond's symmetry refers to the precision and alignment of a stone's facets and the resulting effects on its overall brilliance.
Symmetry :
A diamond's symmetry refers to the precision and alignment of a stone's facets and the resulting effects on its overall brilliance.
Fluorescence:
Fluorescence :
A measure of the visible light some diamonds emit when exposed to ultraviolet (UV) rays. Diamonds with a strong or very strong fluorescence are a better value because the market prices them slightly lower. It is quite rare for fluorescence to have any visual impact on a diamond's appearance, and it does not compromise the gem's structural integrity in any way.
Fluorescence :
A measure of the visible light some diamonds emit when exposed to ultraviolet (UV) rays. Diamonds with a strong or very strong fluorescence are a better value because the market prices them slightly lower. It is quite rare for fluorescence to have any visual impact on a diamond's appearance, and it does not compromise the gem's structural integrity in any way.
Table %:
Table %:
Usually the largest facet on a diamond, located on the top. The size of the table can have a considerable effect on the diamond's light performance or brilliance.
Table %:
Usually the largest facet on a diamond, located on the top. The size of the table can have a considerable effect on the diamond's light performance or brilliance.
Depth %:
Depth %:
The height of a diamond, measured from the culet to the table, divided by its average girdle diameter. One of the basic proportions that contributes to a diamond's appearance, brilliance and fire.
Depth %:
The height of a diamond, measured from the culet to the table, divided by its average girdle diameter. One of the basic proportions that contributes to a diamond's appearance, brilliance and fire.