How do I buy diamond stud earrings?
When buying something as simple as a timeless pair of diamond earrings it's crucial to be educated on a few small points to understand what the carat weight of your new stunning pair actually means. While diamond color, diamond quality and color grade will all be important factors when you are searching for a complete guide to buying studs, understanding the actual size of each diamond earring might be the best starting point to discover your ideal pair of diamond studs.
What will a pair of diamond stud earrings look like on?
The size of Carat Total Weight of the pair, or CTW, will be split into half for each solitaire earring in the pair.
Example: '1ctw' One carat stud earrings will have 2- 0.50 carat diamonds that total the earring pair. These are considered solitaire diamond earrings. As one- 1/2 carat solitaire stud will be in each ear.


Diamond earring Size Guide
What will be the size of each earring in my diamond studs earring pair?
In discovering your perfect pair, it's important to know that because diamond earring pairs carat weight is a combined weight, each individual carat weight for each earring is half of the total weight. The "CTW" or "Carat Total Weight" is the weight of both earrings in the pair added together that make the Carat Total Weight.
So if you see a 2.00ctw Earring Pair, this means each stud earring will be a One-Carat Diamond.
| PAIR TOTAL WEIGHT | EACH DIAMOND CT | EACH MM SIZE |
|---|---|---|
2.00 ctw |
1.00 carat each | 6.5 MM |
1.50 ctw |
.75 carat each | 5.8MM |
1.25 ctw |
.62 carat each | 5.55MM |
1.00 ctw |
.50 carat each | 5MM |
.75 ctw |
.375 carat each | 4.67MM |
.62 ctw |
.31 carat each | 4.3MM |
.50 ctw |
.25 carat each | 4.1MM |
.40 ctw |
.20 carat each | 3.8MM |
.33 ctw |
.165 carat each | 3.5MM |
.25 ctw |
.125 carat each | 3.2MM |

Carat Size Buying Tips
Diamond carat is often misunderstood and actually refers to a diamond's combined weight, rather than the size. The carat weight can actually vary by a diamond's size depending on it's cut quality. It's important to note that a MM diamond size guide is an average table measurement that represents the comparable carat weight of a good quality cut diamond.
When searching for the perfect diamond stud earrings consider the cut quality. As a poor or good cut diamond may often have a deeper cut, meaning the weight of the diamond is actually more at the bottom of the diamond, rather than at the surface top in the table. We recommend a diamond of the cut grade quality Very Good or Excellent. This will ensure your diamond studs are comparable to the diamond size guide when selecting well-cut diamond studs. We indicate the cut grade on all our diamond certificates included with every diamond studs purchase.
Knowing a few quick buying tips can guide you to help choose the best diamond earring size options for you.

2.00 CTW Diamond Stud Earrings Stand Out
By now you already know that these excellent cut grade 2.00 ctw diamond earrings set in 14KT yellow gold showcase 1.00 carat solitaire round diamond in each individual ear that make up the 2 Carat Total Weight pair of earrings. Discover Lab Grown Diamond Studs for various shape options and a variety of style settings that offer more affordable options in larger carat weight diamond earrings.
Shop Natural 2 Carat Total Weight Earrings for a timeless and excellent carat size selection for diamond studs.
Consider The Setting Type
Stud earrings come in your staple common types of settings, each with its unique characteristics and advantages, that may actually give the studs a larger carat total weight appearance. Here are some of the most popular earring stud earrings settings to consider:

4-Prong Setting
Prong settings are popular and classic choices for earrings. They consist of precious metal prongs that hold the diamonds in place. This setting allows maximum light to pass through the earrings, enhancing its brilliance and sparkle while being a secure setting option. Prong settings work well with various stud shapes and larger diamonds. This may also be called the classic basket setting and gives the studs just slightly added volume while the 6-Prong settings will add a little more volume.

Bezel Setting
In a bezel setting, the gemstone is completely embraced in precious metal encircling the girdle of the diamond, creating a secure and protective setting type. The bezel adds dimension and volume and will make the diamond studs appear as a larger diamond carat weight then they actually are. This is the best setting selection for a larger carat weight diamond appearance in a pair of solitaire earrings.

Martini Setting
Named after its resemblance to a martini glass, this setting is designed with three or four prongs. It is a popular choice for diamond stud earrings as it positions the stone closer to the earlobe, creating a more elegant and sophisticated look with the most minimal amount of metal and doesn't necessarily impact the size and appearance of earrings. The metal color may be harder to decipher in this setting selection, especially when selected in white gold.

Halo Setting
The halo setting features central diamonds embraced in a circle or "halo" of smaller accent diamonds, creating a dazzling and glamorous effect that gives a larger carat weight appearance. Consider the metal type when selecting halo settings as this will be more visible than with other classic setting types.Halo diamond studsenhance the overall brilliance of the earrings and is a popular selection for many diamond cuts and pair well with daily wear or formal attire for any special occasion.
When choosing a setting type for your pair of stud earrings, it's important to consider your style preference, the level of security and protection you desire, but don't forget the overall look and size appearance that the proper setting can add to your brilliant diamond studs. Each setting type has its charm and can complement various types of daily wear and formal occasions.

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Frequently Asked Questions
The 4 C’s refer to the four main factors used to evaluate the quality of a diamond:
- Carat Weight: The size of the diamond, measured in carats.
- Cut: How well the diamond is cut, affecting its brilliance and sparkle.
- Color: The absence of color in a diamond, with a scale ranging from D (colorless) to Z (light yellow or brown).
- Clarity: The presence of internal or external flaws (inclusions and blemishes), rated on a scale from Flawless to Included.
The creation of lab grown diamonds replicates the process of natural diamonds in an environment of extreme heat, pressure, and carbon. The main difference lies in time and origin: while natural diamonds develop deep within the Earth’s mantle over billions of years, lab grown diamonds are formed through cutting-edge technology in just a matter of weeks.
Lab grown diamonds, also known as lab created or man-made diamonds, are real diamonds cultivated in advanced laboratory settings under highly controlled conditions. They possess the same physical, chemical, and optical characteristics as natural, earth-mined diamonds, including the identical carbon crystal structure that gives them remarkable brilliance and durability.
Visually, Lab Grown Diamonds are exactly the same with the same hardness level and durability as Natural Diamonds. These gems both have the same refractive qualities, chemical composition and strength.
Our lab grown diamonds display the same physical, chemical, and optical characteristics as natural diamonds, and exhibit the same sparkle, fire and scintillation. Thus, making them an ideal choice for those looking for a budget friendly alternative to natural diamonds.
Neither natural nor lab-grown diamonds are universally better. Both are real diamonds with the same chemical composition, crystal structure, brilliance, and sparkle. The best choice ultimately depends on your personal preferences, budget, and what matters most to you.
Diamonds and other gemstones are measured in metric carats, with one carat equaling 0.2 grams, approximately the weight of a paperclip. It's important not to mix up carat with karat, which denotes gold purity, such as "18K gold." Like how a dollar breaks down into 100 pennies, a carat is divided into 100 points. For instance, a 50-point diamond weighs 0.50 carats. However, two diamonds of the same weight can vary significantly in value due to factors like clarity, color, and cut, known as the Four C’s. Most diamonds used in fine jewelry are one carat or less in weight. Precision is crucial because even a small fraction of a carat can greatly affect cost.
Carat weight refers to the weight of an individual diamond, while Total Carat Weight (CTW) refers to the combined weight of all diamonds in a piece of jewelry.
For example, when shopping for diamond stud earrings:
- 1.00 Carat Total Weight (CTW): Each earring contains approximately a 0.50-carat diamond, for a combined total of 1.00 carat.
- 2.00 Carat Total Weight (CTW): Each earring contains approximately a 1.00-carat diamond, for a combined total of 2.00 carats.
- 3.00 Carat Total Weight (CTW): Each earring contains approximately a 1.50-carat diamond, for a combined total of 3.00 carats.
The Cut of a diamond is often confused with shape and is a term sometimes used interchangeably. But when referring to a Cut of a diamond it is a grade that determines the quality of proportions and arrangement of facets that produce attractive diamonds in relation to light. So, the better the cut, the better the sparkle. Shape simply put is the overall outline of the stone, such as round, heart, pear and oval.
The shape is the visual aspect of the diamond such as Oval, Pear, Emerald, Heart, etc.
The setting refers to only the finding or mounting that holds the diamond. Examples include: 4-Prong Basket, 3-Prong Martini, Bezel, etc.
Fluorescence actually is the absence of a blue tone in diamonds. None would be the best grading available for Fluorescence.
Not all diamonds are graded by a laboratory such as GIA, IGI, EGL, etc. Non-certified diamonds are graded based on the same criteria as certified diamonds (the 4 C’s), but the grading is done internally by the jeweler or retailer rather than by an independent third-party organization. This can result in less consistency and reliability in the grading. Be sure to shop our certified section if you only want a pair of certified diamonds.
A GIA diamond grading report is an independent evaluation issued by the Gemological Institute of America (GIA), one of the world's most respected gemological organizations. It provides an assessment of a diamond's characteristics, including its Cut, Color, Clarity, and Carat Weight, helping buyers understand the diamond's quality and identity. A GIA report provides confidence and transparency when purchasing a natural diamond.
GIA (Gemological Institute of America) and IGI (International Gemological Institute) are two widely recognized diamond grading organizations. Other laboratories may also provide diamond grading reports, but their grading standards, methodologies, and industry recognition can vary.
Yes. Because we check and inspect every diamond before it ships we can provide the grading reports in advance. Simply email us at info@diamondstuds.com with the diamond information you are looking for, including the item ID # and we can provide diamond images, certifications or videos.
Yes. This is provided upon request for a $100.00 charge. Before adding an item to your cart, select your metal color option and under these selections will be a check box for "Appraisal". Ensure to check this box and then add to cart and one will be provided with your order. A free appraisal report may be included with GIA and EGL USA Certified product orders.
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