Cape Town’s Premier Manufacturing Jeweller
+27 21 434 1254
Cape Town’s Premier Manufacturing Jeweller

Largest selection of diamonds in South Africa.
Cape Town’s leading jewellery designers and manufacturers.

Diamonds 1

Browse our Diamonds Online or visit our showroom in South Africa

Mark Solomon Jewellers, nestled in Sea Point, Cape Town, is renowned for offering one of the most extensive selections of Cape Town diamonds, and is celebrated for its leading jewellery designers and unparalleled craftmanship. With a steadfast commitment to excellence, our team of onsite GIA gemmologists, jewellery designers, goldsmiths, gemstone setters, and sales executives, brings inspired visions to life with exquisite precision

Buying diamonds from one of the largest and most trusted loose diamond suppliers in Cape Town, South Africa

Discover the Brilliance of South African Diamonds at Mark Solomon Jewellers

Step into Mark Solomon Jewellers, a Cape Town gem, and immerse yourself in our deep-rooted passion for South Africa’s iconic diamonds. We proudly showcase an unrivalled selection of loose diamonds, mesmerizing tanzanites, and a myriad of other sought-after gemstones, most of which have a direct lineage to the South African diamond mines.

Our expertise in South African diamonds is unmatched and our diverse collections, of both round and fancy-cut diamonds, are priced competitively without compromising on sparkle or quality.

As one of the foremost and trusted diamond suppliers in the region, we guarantee an enchanting display of Africa’s finest diamonds and rare tanzanites at our Cape Town showroom. Whether you’re on the quest for a valuable investment or envisioning the perfect diamond for your engagement ring, your dream gemstone awaits. 

Considering purchasing a South African diamond or exquisite local jewellery on your next visit to Cape Town? Reach out to us through our Contact Page. We’re here to guide you every shimmering step of the way. 

Diamonds Cape Town

Get in touch with one of our highly qualified designers

If you are interested in purchasing one of our authentic South African diamonds, or diamond engagement rings, please visit our Contact page and send us an email. We will be glad to assist you in any way we can.

FAQ: Diamond Education Essentials

Understanding diamonds goes beyond their dazzling appearance. Delving into diamond education enlightens enthusiasts and buyers about the intricate details that determine a gem’s value and allure. From the renowned 4Cs to the nuances of sourcing, an informed perspective ensures one truly appreciates these timeless treasures.

Diamond Cut: This determines a diamond's brilliance. A well-cut diamond reflects light beautifully.

Among the revered 4Cs, the cut stands distinct as the factor most directly shaped by human hands, while nature bestows the other three. The diamond's cut, a testament to the polisher's expertise, profoundly amplifies its radiance and allure. As such, ensuring optimal proportions is paramount.

The cut of a diamond is pivotal in harnessing light's magic in the following ways: With precise proportions, light dances internally, reflecting from facet to facet, and then brilliantly shines through the diamond's top, delivering unparalleled sparkle. A diamond cut too deeply allows some light to escape via the opposite side of the pavilion.  Conversely, a shallow cut causes light to exit through the pavilion before achieving its radiant reflection.

Diamond Colour: Diamonds are graded from D (colourless) to Z (light yellow).

Diamond colour is a marvel entirely crafted by nature. Each diamond boasts a unique hue resulting from its distinct chemical composition. The spectrum begins with pristine colourlessness, progressing to enchanting fancy colours like blue, pink, and the exceptionally rare red. For the prevalent white diamonds, the presence of chemicals like nitrogen plays a pivotal role: the less colour a diamond exhibits, the less nitrogen it contains. Diamond colours are graded on a D-Z scale. Those that are chemically pure and structurally flawless fall within the D-F range, commonly referred to as "colorless". Not only are D-F diamonds a rarity, but their unmatched purity also commands a premium price.

  • A diamond's yellow tint intensifies with increasing nitrogen in its carbon structure.
  • A diamond's value is largely determined by its absence of hue.
  • The colour of a diamond significantly influences its price point

diamond colour scale

Diamond Clarity: Refers to the natural inclusions in a diamond

Virtually every diamond harbors tiny mineral traces, known as inclusions, often imperceptible without magnification. A diamond's rarity—and thus its value—is inversely proportional to the number of these inclusions: the fewer there are, the more precious the stone becomes. The term 'clarity' describes the degree to which a diamond is free from these inclusions, serving as a key indicator in assessing its worth.

In the realm of diamonds, clarity grades offer insight into the presence of inclusions. Here's a brief overview of common clarity grades:

​• F (Flawless): These diamonds show no inclusions under 10x magnification. They're incredibly rare and highly valued.

• IF (Internally Flawless): Diamonds with this grade have no inclusions visible under 10x magnification, but they might have some surface imperfections.

• VVS (Very, Very Slightly Included): These diamonds have minuscule inclusions that are exceedingly challenging to detect under 10x magnification.

• VS (Very Slightly Included): Diamonds in this category have minor inclusions, which are challenging (but not impossible) to see under 10x magnification.

• SI (Slightly Included): These diamonds have noticeable inclusions under 10x magnification, which may or may not be visible to the naked eye.

GIA Diamond Clarity Scale

Carat: The weight and size of the diamond.

Like all precious gemstones, a diamond's weight is denoted in carats. The term "carat" traces its roots to the seeds of the carob tree, which historically served as a natural weight benchmark for diamonds. Over time, this system was standardized, setting one carat equivalent to 0.2 grams. Furthermore, a carat is subdivided into 100 "points." Thus, a diamond weighing 25 points is referenced as a quarter-carat or 0.25-carat.

Additional points on carat weight:

Perception vs. Reality: Carat weight can sometimes be deceptive. Two diamonds that both weigh 1 carat might appear different in size depending on how they're cut. A shallower diamond might appear larger than a deeper one, even if they have the same carat weight.

Price Jumps: As diamonds increase in carat weight, their price per carat often jumps significantly, especially at popular milestone weights like 1.0 or 2.0 carats. Thus, a 0.99-carat diamond might be substantially less expensive than a 1.01-carat diamond.

Balancing Act: Carat weight often interacts with clarity, cut, and colour. A larger diamond might more readily show inclusions or imperfections, so some buyers opt for a slightly smaller, better-quality diamond over a larger one with visible flaws.

Practical Considerations: While a larger carat weight might seem more impressive, practical considerations, such as the wearer's lifestyle or the setting of the jewellery, can influence the best choice in carat weight.


When venturing into the world of diamonds in South Africa, several factors should guide your selection to ensure you're acquiring a gem that aligns with both quality standards:


Before making a purchase, confirm that the diamond is accompanied by a reputable certification. This documentation attests to its authenticity and provides an in-depth analysis of its attributes, ensuring you are making an informed decision.

The 4Cs:

Familiarize yourself with the core parameters that ascertain a diamond's worth:

Cut: Reflects how well the diamond has been shaped and faceted, influencing its brilliance.

Carat: Denotes the diamond's weight, which often correlates with its size.

Colour: Ranges from colourless to yellow, with the most transparent diamonds typically being the most prized.

Clarity: Evaluates the presence of natural inclusions.

Trusted Sellers:

Your diamond-buying journey should be anchored in trust. Opt for seasoned jewellers with a storied legacy and a robust reputation. Mark Solomon Jewellers, for instance, has been a beacon of reliability in the diamond industry, ensuring that clients receive nothing short of excellence.

By arming yourself with this knowledge and partnering with credible establishments, you are well on your way to securing a diamond that resonates with both quality and meaning.

Diamonds 2

While online diamond shopping offers unparalleled convenience and variety, it misses the tangible connection between buyer and investment.


For luxury items like diamonds, there's value in authentic interaction. Researching diamonds online is a start, but many consumers remain unaware of critical factors beyond the famed four C's, such as certification, fluorescence, and global demand.


We encourage our clients to view diamonds in person at our showroom as there are many misconceptions about diamond colour, factors that influence colour, and the subtle differences between colour grades. We also offer our clients a unique opportunity to view their diamonds in natural daylight, revealing the true colour and beauty of the stones.
However, if you are unable to visit us, we will send you videos and photos that represent the diamond honestly, and give you an indication of scale and proportion. You will have direct contact with real people on the other end – our jewellery designers – who attend to each person with the care and attention required to meet your individual needs. This is particularly helpful for out-of-town and international clients, and provides that extra confidence to feel safe in your spend.


Beware of unusually low diamond prices online; the reason might be hidden flaws or inferior cuts—difficult to gauge without an in-person examination. Think of it akin to test-driving a car: would you buy based solely on an online review?


Lastly, remember the value of a trusted jeweller relationship. Familiarity fosters confidence in quality and pricing, making subsequent purchases smoother. A jeweller, like Mark Solomon Jewellers, earns loyalty by consistently delivering quality at competitive prices.


Diamonds 3

Selecting the perfect engagement ring is not just a purchase—it's a heartwarming declaration of love and commitment. To ensure that this symbol resonates with its intended sentiment, consider the following:

Tune into Tastes: Begin by reflecting on the wearer's personal style. Are they drawn to vintage elegance or contemporary chic? What metal resonates with their personality—classic yellow or white gold, sleek platinum, or romantic rose gold? And don't forget about the diamond's shape; each cut has its own story to tell.

Budgeting with Balance: Set a realistic budget that feels comfortable. Remember, it's not about how much you spend, but the thought and quality you invest in. With diligent research, you can discover a diamond that offers both value and splendor.

The Right Fit: The ring's emotional fit is paramount, but its physical fit is equally crucial. If you're unsure about the size, seek advice from your jeweller, or employ subtle strategies to decipher the correct measurement.

Championing Quality: While aesthetics are subjective, quality isn't. Prioritise diamonds that exude brilliance and adhere to the esteemed 4 Cs: Cut, Colour, Clarity, and Carat.

Trust the Experts: Embarking on this journey with a seasoned guide can be invaluable. Specialists, like those at Mark Solomon Jewellers, possess the expertise to navigate the myriad options, ensuring your final choice is as unique and radiant as your love story. In the quest for the perfect engagement ring, let love be your compass and quality be your beacon.

Diamonds 4

Browse the largest collection of loose diamonds under one roof in South Africa, or contact us today to view our selection of certified diamonds in person:

Book a Consultation

Fill in your details and select a date that would best suit you to visit our showroom.

"*" indicates required fields

DD slash MM slash YYYY
This field is for validation purposes and should be left unchanged.

Request a Quotation

Fill in your details and select the type of metal and your finger size.

Request a Quotation

Describe your ideal diamond ring and select the type of metal and your finger size.

Request a Quotation - Old

Book a Consultation - Old

Request a Quotation

Fill in your details and describe your ideal Diamond Tennis Bracelet.

Request a Quotation

Fill in your details and describe your ideal Antique, Vintage or Retro jewellery piece.

Book a Consultation

Fill in your details and select a date that would best suit you to visit our showroom.

Request a Quotation

Fill in your details and select the type of metal and your finger size.