Star Lanka - Cushion Gemstones

Star Lanka - Cushion Gemstones

With a legacy spanning back to 1985, Starlanka has committed itself to offering only the most exquisite gemstones. Driven by an intrinsic love for the beauty of these stones, every gem in our collection undergoes careful scrutiny, ensuring that it meets our exacting standards of quality and distinction.

Each gemstone that graces our collection undergoes a meticulous selection process, ensuring that only the finest specimens with exceptional characteristics make their way to our discerning clientele. We believe in cherishing the uniqueness and individuality of each gem, recognizing that they carry their own distinct story and allure.

Our extensive network of relationships with miners and artisans spans the globe, allowing us to curate an unparalleled collection of gemstones that captivate the senses and stir the imagination. From the vibrant hues of sapphires to the fiery brilliance of rubies, our offerings showcase the diversity and splendor of nature's creations.

At Starlanka, we are driven by a commitment to excellence in every facet of our operations. Whether it's procuring rare and exquisite gemstones or providing exceptional customer service, our dedication to perfection shines through in everything we do. We understand that for our customers, each gemstone is not just a stone but a piece of art waiting to be discovered and cherished.

As we continue our mission of sharing the wonder and magic of gemstones with the world, we invite you to embark on a journey of discovery with Starlanka. Explore our collection and uncover the beauty and elegance that lies within each gem. With Starlanka, every gemstone is a testament to the timeless allure of nature's creations, waiting to be treasured for generations to come.

Star Lanka Co., Ltd

No. 234, 2nd Floor, Jewelry Trade Center,

Si Lom Rd, Silom, Bangrak, Bangkok 10500, Thailand

+66 2 630 2629

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Understanding the 4 Cs of Diamond Quality: A Buyer's Guide

Understanding the 4 Cs of Diamond Quality: A Buyer's Guide

When it comes to purchasing diamonds, whether for an engagement ring, a special gift, or personal investment, understanding the value and quality of these precious stones is crucial. The 4 Cs—Cut, Color, Clarity, and Carat Weight—are the globally accepted standards for assessing the quality of diamonds. This essay will guide you through each of these characteristics to help you make informed decisions when buying diamonds.

The first C stands for Cut, which refers not to the shape of the diamond but to how well it has been cut from its rough state. The cut determines how well a diamond reflects light, contributing to its brilliance and sparkle. A well-cut diamond will have facets that are precisely angled and sized to maximize the stone's ability to reflect light back to your eye. Cuts are graded from Excellent down to Poor. An excellent or very good cut can make a diamond appear more brilliant and fiery even if it is lower in carat weight or has slight coloration.

Next is Color, which in terms of diamond quality actually refers to lack thereof. Diamonds are graded on their lack of color since a perfectly colorless stone allows maximum light refraction, leading to greater sparkle. The Gemological Institute of America (GIA) grades color on a scale from D (colorless) through Z (light yellow or brown). While color differences can be subtle, they significantly affect a diamond's value; typically those closer to D are more valuable.

Clarity measures the purity of a diamond by identifying any blemishes on its surface (external flaws known as "blemishes") and internal features called "inclusions." The GIA clarity scale contains eleven grades ranging from Flawless (no inclusions or blemishes visible under 10x magnification) down to I3 (inclusions visible with the naked eye). Most diamonds contain some form of imperfection but finding one that appears flawless without magnification often provides an acceptable balance between beauty and cost.

Lastly is Carat Weight, which people often mistake as relating solely to size when it actually refers to weight. One carat equals 200 milligrams. Larger diamonds are rarer than smaller ones so price increases exponentially with carat weight rather than linearly. However, two diamonds weighing the same may have different costs based on their cut quality, color grade and clarity level.

In conclusion:
- Cut determines how effectively a diamond sparkles.
- Color should be absent or minimal for higher quality.
- Clarity involves evaluating internal and external imperfections.
- Carat weight affects size perception but also contributes heavily towards price due mainly because larger sizes occur less frequently in nature.

Knowledgeable buyers understand that balancing these four aspects according with their preferences and budget can lead them toward making an astute purchase decision. Remembering that each characteristic affects another—for example sacrificing slightly in clarity could allow you get a larger stone within your budget—will aid you in selecting just right gemstone for your needs while ensuring value for money spent on this timeless symbol luxury love commitment celebration!



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Entity Definition
Bi Colour Tourmaline Tourmaline gemstones that display two or more distinct colors, often in a gradient.
Cuprian Tourmaline Tourmaline with a high copper content, resulting in bright and vivid colors.
Chrome Tourmaline Tourmaline gemstones with a deep green color, enhanced by chromium content.
Green Tourmaline Tourmaline gemstones that range from light to dark green, known for their rich color.
Pink Tourmaline Tourmaline gemstones with a pink hue, popular for their delicate and attractive color.


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How to Care for Your Gemstone Jewelry: Tips and Tricks

Gemstone jewelry is not only a testament to personal style but also a valuable investment that can last for generations if cared for properly. Whether you have a penchant for sapphires, an affection for amethysts, or a reverence for rubies, your gemstone jewelry deserves meticulous care to maintain its luster, color, and integrity. In this essay, we will explore various tips and tricks that can help you ensure the longevity and beauty of your precious pieces.

Understanding Your Gemstones

Before diving into maintenance routines, it's essential to recognize that different gemstones have different properties and thus require unique care. For instance, diamonds are very hard and resistant to scratches, while opals are softer and more prone to damage. It’s crucial to educate yourself about the specific needs of each type of gemstone in your collection.

Routine Cleaning

Regular cleaning is vital to keeping your gemstone jewelry looking its best. However, harsh chemicals and vigorous scrubbing can do more harm than good. A safe method is to use warm soapy water (with gentle soap) and a soft brush, such as a toothbrush with soft bristles. Gently brush the stones and setting before rinsing them in clean water. Make sure you plug the sink or work over a bowl to prevent losing any small pieces down the drain.

For certain gemstones like pearls or opals that are more delicate, even mild detergent might be too strong. Instead, wipe these gently with a damp cloth after wearing them.

Drying is just as important as cleaning; always pat dry your jewelry with a lint-free cloth instead of air-drying which can leave water spots on some gemstones.

Storing Your Jewelry

Proper storage is key in protecting your gems from unnecessary wear and tear. It’s advisable not only to keep them away from extreme temperatures but also from each other - harder stones can scratch softer ones if they come into contact within a jewelry box. To avoid this:

- Use individual soft pouches or lined boxes.
- Keep necklaces hung or laid flat so they don’t get tangled.
- Ensure clasps are fastened on bracelets and necklaces so they don’t scratch other items.

Avoiding Damage

Be mindful of when you wear your gemstone jewelry:

- Take off rings when doing household chores or gardening.
- Avoid wearing jewelry during high-intensity activities where it could get bumped or scratched.
- Be cautious around water; some stones (like turquoise) are porous and can suffer damage from prolonged exposure.
- Remove jewelry before applying makeup or hairspray since chemicals found in cosmetics may damage certain gems over time.

Professional Maintenance

Even with diligent care at home, it's wise to take your fine gemstone jewelry to professionals for regular check-ups – perhaps once every year or two depending on how frequently you wear the pieces. Jewelers will inspect settings for loose stones that could potentially fall out if not tightened. They may also recommend professional cleaning methods inappropriate for at-home use due to specialized equipment.

Heat Exposure & Ultrasonic Cleaners

When using ultrasonic cleaners at home or having jewels professionally cleaned by such methods, remember not all stone types tolerate heat well nor should be subjected to ultrasonics due their delicate nature (examples include emeralds). Always seek advice regarding suitability prior usage these machines on particular gems otherwise risk damaging them beyond repair through fracturing internal structures causing loss clarity brilliance appearance overall value piece itself.

Insurance & Documentation

Lastly no amount carefulness eliminates possibility theft natural disaster occurring leading potential loss sentimental financial investments made purchasing owning fine jewelries therefore securing comprehensive insurance policy along keeping up-to-date appraisals recommended safeguard against unfortunate events ensuring peace mind knowing cherished items protected whatever life throws way conclusion proper care attention dedicated maintaining one's precious give countless years enjoyment admiration pass down future generations showcase timeless elegance classic beauty inherent within every sparkling facet cut polished surface embedded within cherished adornments known simply as our beloved gemstone jewelry


Frequently Asked Questions

Choosing the best gemstone for an engagement ring involves considering factors like the gemstone's hardness, durability, color, clarity, and personal significance to the wearer.

Paraiba Tourmaline is prized for its vivid neon blue or green color, caused by traces of copper, and its rarity, making it one of the most expensive tourmalines.

Cat's Eye Stone Gems exhibit chatoyancy, a reflective effect that resembles a cat's eye, caused by parallel inclusions, distinguishing them from other Chrysoberyl Gems.