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    Loose 0.5 Carat Diamonds

    Half-carat diamonds strike the perfect balance between impressive presence and investment value. Our curated selection features top-quality 0.5 ct stones that deliver significant visual impact while maintaining acquisition accessibility, each genuine diamond carefully selected from Antwerp's finest rough material to ensure optimal light performance and extraordinary brilliance.

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    Fancy color

    Fancy color

    Fancy colored diamonds are incredibly rare and fascinating. Nearly every color you can think of is available in fancy color diamonds. There are a huge variety of beautiful color options. Pink, blue, green, brown diamonds look charming and mesmerizing.

    LEARN ABOUT DIAMOND FANCY COLOR
    Intensity

    Intensity

    Diamond intensity refers to the strength or saturation of a fancy color diamond’s hue. It’s a key factor in determining a diamond’s value and desirability.

    LEARN MORE ABOUT Intensity
    Overtone

    Overtone

    Diamond overtone is a subtle, secondary color that can be observed in some fancy color diamonds, particularly those with intense or vivid hues. It’s like a whisper of color layered over the primary color, adding depth and complexity to the diamond’s brilliance.

    LEARN MORE ABOUT Overtone
    Shape

    Shape

    Diamond shape refers to the overall outline and facets of a diamond. It’s a crucial factor that affects a diamond’s brilliance, fire, and scintillation – its ability to reflect light and sparkle.

    LEARN MORE ABOUT Shape
    Clarity

    Clarity

    Diamond clarity refers to the absence of inclusions (internal flaws) and blemishes (external imperfections) within a diamond. It’s one of the four Cs (carat, cut, clarity, and color) that determine a diamond’s value and price.

    LEARN MORE ABOUT Clarity
    Carat weight

    Carat weight

    Diamond weight, also known as carat weight, is a measure of a diamond’s mass. It’s one of the four Cs (carat, cut, clarity, and color) that determine a diamond’s value and price.

    LEARN MORE ABOUT DIAMOND CARAT
    Price

    Price

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    0.50 Ct Fancy Intense Yellow Cushion Modified Brilliant Natural Diamond

    0.50 Ct Fancy Intense Yellow Cushion Modified Brilliant Natural Diamond

    Price Upon Request
    0.50 Ct Fancy Deep Brownish Yellow Cushion Modified Brilliant Natural Diamond

    0.50 Ct Fancy Deep Brownish Yellow Cushion Modified Brilliant Natural Diamond

    Price Upon Request
    0.36 Ct Fancy Intense Yellow Round Brilliant Natural Diamond

    0.36 Ct Fancy Intense Yellow Round Brilliant Natural Diamond

    Price Upon Request
    0.52 Ct Fancy Vivid Orangy Yellow Cushion Modified Brilliant Natural Diamond

    0.52 Ct Fancy Vivid Orangy Yellow Cushion Modified Brilliant Natural Diamond

    Price Upon Request
    0.59 Ct Fancy Deep Orangy Yellow Round Natural Diamond

    0.59 Ct Fancy Deep Orangy Yellow Round Natural Diamond

    4,500.00$
    0.66 Ct Fancy Light Brownish Pink Cushion Modified Brilliant Natural Diamond

    0.66 Ct Fancy Light Brownish Pink Cushion Modified Brilliant Natural Diamond

    3,500.00$
    0.50 Ct Fancy Purplish Pink Cushion Modified Brilliant Natural Diamond

    0.50 Ct Fancy Purplish Pink Cushion Modified Brilliant Natural Diamond

    18,000.00$
    0.37 Ct Fancy Vivid Orangy Yellow Round Brilliant Natural Diamond

    0.37 Ct Fancy Vivid Orangy Yellow Round Brilliant Natural Diamond

    6,000.00$
    0.35 Ct Fancy Vivid Yellow-Orange Oval Modified Brilliant Natural Diamond GIA

    0.35 Ct Fancy Vivid Yellow-Orange Oval Modified Brilliant Natural Diamond GIA

    10,000.00$
    0.36 Ct Fancy Vivid Orange-Yellow Oval Modified Brilliant Natural Diamond GIA

    0.36 Ct Fancy Vivid Orange-Yellow Oval Modified Brilliant Natural Diamond GIA

    10,000.00$
    0.66 Ct Fancy Vivid Orangy Yellow Round Brilliant Natural Diamond GIA

    0.66 Ct Fancy Vivid Orangy Yellow Round Brilliant Natural Diamond GIA

    8,000.00$
    0.49 Ct Fancy Vivid Orangy Yellow Round Brilliant Natural Diamond GIA

    0.49 Ct Fancy Vivid Orangy Yellow Round Brilliant Natural Diamond GIA

    5,500.00$
    0.35 Ct Fancy Intense Orangy Pink Cushion Modified Brilliant Natural Diamond GIA

    0.35 Ct Fancy Intense Orangy Pink Cushion Modified Brilliant Natural Diamond GIA

    18,000.00$
    0.62 Carat Fancy Green Cushion Modified Brilliant SI1 Diamond GIA

    0.62 Carat Fancy Green Cushion Modified Brilliant SI1 Diamond GIA

    33,480.00$
    0.51 Carat Fancy Deep Brown-Orange SI2 Cushion Shape Diamond GIA | 4.61 x 4.02 x 3.03

    0.51 Carat Fancy Deep Brown-Orange SI2 Cushion Shape Diamond GIA | 4.61 x 4.02 x 3.03

    1,990.00$
    0.51 Carat Fancy Deep Brown-Orange SI2 Cushion Shape Diamond GIA

    0.51 Carat Fancy Deep Brown-Orange SI2 Cushion Shape Diamond GIA

    1,990.00$
    0.56 Carat Fancy Deep Brown-Orange VS2 Oval Shape Diamond GIA

    0.56 Carat Fancy Deep Brown-Orange VS2 Oval Shape Diamond GIA

    1,990.00$
    0.55 Carat Fancy Deep Brownish Orangy Yellow SI2 Oval Shape Diamond GIA

    0.55 Carat Fancy Deep Brownish Orangy Yellow SI2 Oval Shape Diamond GIA

    1,990.00$
    0.71 Carat Fancy Deep Brownish Orangy Yellow SI2 Oval Shape Diamond GIA

    0.71 Carat Fancy Deep Brownish Orangy Yellow SI2 Oval Shape Diamond GIA

    2,200.00$
    0.55 Carat Fancy Deep Brown-Orange SI2 Pear Shape Diamond GIA

    0.55 Carat Fancy Deep Brown-Orange SI2 Pear Shape Diamond GIA

    1,990.00$
    0.42 carat F VS1 Cushion Shape Diamond GIA

    0.42 carat F VS1 Cushion Shape Diamond GIA

    990.00$
    0.61 carat E VVS2 Marquise Shape Diamond GIA

    0.61 carat E VVS2 Marquise Shape Diamond GIA

    1,409.00$
    0.45 carat F VS1 Pear Shape Diamond GIA

    0.45 carat F VS1 Pear Shape Diamond GIA

    756.00$
    0.43 carat Fancy Vivid Purple-Pink SI2 Round Shape Diamond GIA

    0.43 carat Fancy Vivid Purple-Pink SI2 Round Shape Diamond GIA

    Price Upon Request
    0.61 Carat Fancy Light Pink-Brown Pear Shape Diamond GIA

    0.61 Carat Fancy Light Pink-Brown Pear Shape Diamond GIA

    3,220.00$
    0.53 Carat Fancy Light Pink Cushion Shape Diamond GIA

    0.53 Carat Fancy Light Pink Cushion Shape Diamond GIA

    5,428.00$
    0.62 carat Fancy Intense Yellow SI2 Cushion Shape Diamond GIA

    0.62 carat Fancy Intense Yellow SI2 Cushion Shape Diamond GIA

    3,000.00$
    0.40 carat Fancy Vivid Orange Cushion Shape Diamond GIA

    0.40 carat Fancy Vivid Orange Cushion Shape Diamond GIA

    Item Upon Request
    0.50 carat Faint Pink VVS2 Round Shape Diamond GIA

    0.50 carat Faint Pink VVS2 Round Shape Diamond GIA

    Item Upon Request
    0.62 carat Fancy Brownish Purplish Pink SI2 Radiant Shape Diamond GIA

    0.62 carat Fancy Brownish Purplish Pink SI2 Radiant Shape Diamond GIA

    Item Upon Request
    0.51 carat Fancy Brownish Orangy Pink SI1 Cushion Shape Diamond GIA

    0.51 carat Fancy Brownish Orangy Pink SI1 Cushion Shape Diamond GIA

    Item Upon Request
    0.45 carat D VS1 Marquise Shape Diamond GIA

    0.45 carat D VS1 Marquise Shape Diamond GIA

    Item Upon Request
    0.47 carat F VS2 Marquise Shape Diamond GIA

    0.47 carat F VS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.40 carat E VS2 Marquise Shape Diamond GIA

    0.40 carat E VS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.40 carat D VS1 Marquise Shape Diamond GIA

    0.40 carat D VS1 Marquise Shape Diamond GIA

    Item Upon Request
    0.43 carat D VVS2 Marquise Shape Diamond GIA

    0.43 carat D VVS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.44 carat F VVS2 Pear Shape Diamond GIA

    0.44 carat F VVS2 Pear Shape Diamond GIA

    Item Upon Request
    0.53 carat F VS2 Marquise Shape Diamond GIA

    0.53 carat F VS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.65 carat D VS2 Marquise Shape Diamond GIA

    0.65 carat D VS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.46 carat E VS2 Marquise Shape Diamond GIA

    0.46 carat E VS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.58 carat D VS1 Marquise Shape Diamond GIA

    0.58 carat D VS1 Marquise Shape Diamond GIA

    Item Upon Request
    0.59 carat E VS1 Marquise Shape Diamond GIA

    0.59 carat E VS1 Marquise Shape Diamond GIA

    Item Upon Request
    0.60 carat H VS2 Marquise Shape Diamond GIA

    0.60 carat H VS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.80 carat G VS2 Marquise Shape Diamond GIA

    0.80 carat G VS2 Marquise Shape Diamond GIA

    Item Upon Request
    0.70 carat Fancy Yellow I1 Radiant Shape Diamond GIA

    0.70 carat Fancy Yellow I1 Radiant Shape Diamond GIA

    Item Upon Request
    0.44 carat E VVS2 Emerald Shape Diamond GIA

    0.44 carat E VVS2 Emerald Shape Diamond GIA

    Item Upon Request
    0.62 carat Fancy Blue VS1 Pear Shape Diamond GIA

    0.62 carat Fancy Blue VS1 Pear Shape Diamond GIA

    Item Upon Request
    0.62 carat Fancy Deep Brownish Orange SI2 Oval Shape Diamond

    0.62 carat Fancy Deep Brownish Orange SI2 Oval Shape Diamond

    Item Upon Request

    Frequently Asked Questions

    What makes half-carat diamonds the "sweet spot" in the diamond market? 

    Half-carat diamonds represent the perfect balance between visual impact and investment value. At this size, natural diamonds display noticeable brilliance while remaining more accessible than larger stones. Industry experts often refer to 0.5 ct diamonds as the “sweet spot” where precious stone quality and price considerations align optimally for both aesthetic appeal and long-term worth.

    How do half-carat stones compare to larger diamonds in terms of value retention? 

    Half-carat diamonds typically retain their value excellently compared to larger stones. These conflict-free gems face steady market demand due to their practical size and accessibility. While larger diamonds may appreciate more dramatically, 0.5 carat high-quality stones offer more consistent liquidity and represent a lower-risk entry point into diamond investment with predictable cost-to-value ratios.

    What clarity grade is recommended when purchasing a 0.5 carat diamond? 

    For 0.5 ct diamonds, VS1-VS2 clarity grades offer the best value proposition. At this weight, these grades appear flawless to the naked eye while costing significantly less than higher clarity grades. When purchasing natural half-carat stones, prioritizing excellent cut over perfect clarity often results in superior brilliance and visual appeal at a more reasonable price point.

    Why do jewelry designers favor 0.5 carat diamonds for statement pieces? 

    Jewelry designers appreciate 0.5 carat diamonds for their versatility and presence. These genuine stones have sufficient size to serve as focal points while remaining proportionate in delicate settings. Their cost effectiveness allows designers to create more intricate multi-stone arrangements compared to using larger diamonds, resulting in pieces that balance impressive aesthetics with accessible pricing for luxury consumers.

    We Educate

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    Bringing clarity to the realm of diamonds, gems, and fine jewelry through insight that elevates interest into true expertise.

    What to Do in Antwerp: Culture, Cuisine, and Diamonds
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    What to Do in Antwerp: Culture, Cuisine, and Diamonds

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    Jewelry Trends 2026: Global Luxury Styles, Materials & Colors
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    More About Loose Diamonds at Reuven Veksler

    Understanding Diamond Quality and Certification

    Evaluating loose diamonds requires comprehensive knowledge of the 4Cs and certification standards that determine both aesthetic appeal and investment potential. Cut precision directly impacts light refraction and exceptional brilliance, while color grading reveals the stone’s optical purity on the D-Z scale. Professional gemological evaluation from laboratories like GIA or IGI provides authentication of natural origin, ensuring buyers receive conflict-free diamonds with documented quality characteristics rather than synthetic alternatives.

    Read more +

    Investment Advantages of Loose Diamond Purchasing

    Investment-grade loose diamonds offer significant cost-per-carat advantages over pre-set jewelry, allowing buyers to assess clarity characteristics without setting interference. The loose diamond market provides direct access to collector-grade specimens, eliminating multiple retail intermediaries that typically increase final pricing. When you buy loose diamonds online with proper certification, traceable origins ensure transparency about the stone’s journey from mine to market, protecting your investment through verified provenance documentation.

    Reuven Veksler’s Premium Natural Diamond Collection

    Hand-picked from our exclusive Antwerp vault, Reuven Veksler’s premium collection represents five decades of gemological expertise and artisan craftsmanship. As certified members of the Antwerp Diamond Exchange since 1974, we provide direct access to museum-quality natural diamonds with sustainable sourcing practices and lifetime warranty protection. Our conflict-free stones undergo rigorous evaluation to ensure exceptional brilliance and authentic value, offering bespoke jewelry creation opportunities and superior investment potential for discerning collectors worldwide.

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    Frequently Asked questions

    Why should I buy loose diamonds instead of pre-mounted stones? 

    Buying loose diamonds allows you to examine the stone’s natural characteristics without interference from settings, ensuring you purchase genuine, high-quality specimens. You can verify the diamond’s clarity, color grade, and cut quality independently, often achieving better value and cost efficiency. Loose stones also provide flexibility for custom jewelry creation, where you control both the diamond selection and setting design process.

    What certifications should I look for when purchasing diamonds? 

    GIA certified diamonds represent the gold standard in gemological evaluation, providing detailed analysis of cut, clarity, color, and carat weight. Other reputable certifications include IGI and HRD, particularly for stones originating from Antwerp’s diamond exchanges. These certificates document the diamond’s natural origin, conflict-free status, and authentic characteristics, protecting your investment and ensuring genuine quality.

    What are conflict-free diamonds and why choose them? 

    Conflict-free diamonds are ethically sourced stones that were not mined in areas where proceeds funded armed conflict or human rights abuses. These natural diamonds with clear, traceable origins represent a responsible choice for buyers who want their purchase to reflect their values. At Reuven Veksler, we deal exclusively with conflict-free diamonds that come with proper certifications from reputable laboratories like GIA, ensuring both genuine quality and peace of mind for your investment.

    Where should I buy certified loose diamonds for the best value? 

    When purchasing certified loose diamonds, choose reputable dealers who provide comprehensive documentation and ethical sourcing guarantees. Ensure each stone comes with certification from respected laboratories like GIA, AGS, or IGI to verify authenticity and quality. At Reuven Veksler, we offer conflict-free diamonds with lifetime warranties, complete provenance documentation, and expert guidance to make your diamond buying experience both secure and valuable, whether you’re seeking investment-grade stones or creating bespoke jewelry.

    We Educate

    View more

    Bringing clarity to the realm of diamonds, gems, and fine jewelry through insight that elevates interest into true expertise.

    What to Do in Antwerp: Culture, Cuisine, and Diamonds
    • Lifestyle
    What to Do in Antwerp: Culture, Cuisine, and Diamonds

    Antwerp is a city that reveals itself gradually. It is not loud, not theatrical, and not designed for mass tourism. Instead, it offers depth: centuries of trade and craftsmanship, serious…

    BySarah Veksler
    January 28, 2026
    Jewelry Trends 2026: Global Luxury Styles, Materials & Colors
    • Jewelry
    Jewelry Trends 2026: Global Luxury Styles, Materials & Colors

    The landscape of luxury jewelry is transforming as we move through 2026. After several years dominated by delicate “quiet luxury” pieces, a clear shift is underway toward bolder styles and…

    BySarah Veksler
    January 20, 2026