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A 14 carat diamond ring is a statement of exceptional elegance — a piece that exudes prestige and power while symbolising timeless love and accomplishment. Its commanding sparkle and balanced proportions make it perfect for those who value grandeur with sophistication. The 14 Carat Diamond Ring Price for a premium-grade lab-grown diamond — colourless (D–F), VS–VVS clarity, excellent cut, set in solid 14KT gold with IGI certification — typically ranges from $21,500–$23,000 USD or £17,620–£18,860 GBP.
This guide covers everything you need to know before purchasing a 14-carat lab diamond ring — from actual size and price breakdowns to shape comparisons, popular settings, and expert buying advice. You’ll also learn how lab-grown diamonds combine beauty, value, and ethics, offering luxury without compromise. Whether you’re choosing an engagement ring or a celebration of milestones, this blog helps you make an informed, meaningful choice.
How Big is a 14ct Lab Diamond? (Measurements Explained)
When asking, “How big is a 14 Carat Diamond?”, keep in mind that carat weight measures mass, not just size. One carat equals 200 milligrams, so a 14-carat diamond weighs about 2.8 grams. However, how large it appears on your finger depends heavily on its cut and shape proportions.
A round brilliant 14-carat lab diamond measures approximately 15.5–15.7 mm in diameter, showcasing dazzling light reflection and powerful finger coverage. Fancy shapes like oval, radiant, and pear appear even larger because their elongated silhouettes maximise face-up spread, whereas shapes like cushion or Asscher look slightly smaller due to deeper cuts.
| Carat Weight | Approx. Diameter (Round Brilliant, mm) |
|---|---|
| 1 ct | 6.4 mm |
| 2 ct | 8.2 mm |
| 3 ct | 9.3 mm |
| 4 ct | 10.2 mm |
| 5 ct | 11.2 mm |
| 6 ct | 11.8–12.0 mm |
| 7 ct | 12.4–12.7 mm |
| 8 ct | 13.0–13.2 mm |
| 9 ct | 13.5–13.7 mm |
| 10 ct | 14.0–14.2 mm |
| 12 ct | 14.8–15.0 mm |
| 14 ct | 15.5–15.7 mm |
It’s also crucial to understand that size doesn’t scale linearly with weight — for instance, a 2-carat diamond looks about 50% larger than a 1-carat, not double. The brilliance and appearance of your 14-carat diamond depend most on the cut quality, which controls how light moves through the stone.
How Much is a 14 Carat Diamond Ring Price and Worth?
A 14-carat lab-grown diamond ring is a rare and beautiful choice. For top-quality specifications (D–F colour, VS–VVS clarity, excellent cut, and IGI certification), the average price falls between $21,500–$23,000 USD or £17,620–£18,860 GBP.
The value is determined by the 4Cs — Cut, Colour, Clarity, and Carat Weight:
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Cut: Impacts sparkle and symmetry; “Excellent” is the ideal standard.
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Colour: Choose D–F grades for an icy white appearance.
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Clarity: VS–VVS range provides flawless brilliance to the naked eye.
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Carat: Reflects the stone’s weight, directly influencing presence.
Compared with natural stones, lab-grown diamonds deliver identical brilliance, certification, and durability — but at almost 60% less cost. They are also ethically produced, conflict-free, and widely available, making them a smart, sustainable luxury choice.
Discover the details here → Lab Grown Diamonds
13 Carat vs 14 Carat vs 15 Carat Lab Grown Diamond Ring Price Comparison
Before finalising a purchase, many buyers compare one lower and one higher carat to evaluate value and scale. Here’s how they compare:
| Carat Weight | Avg. Size (mm) | Price Range (USD) | Other Popular Shapes | Lifestyle Fit |
|---|---|---|---|---|
| 13 ct | 15.1–15.3 mm | $20,000 – $21,500 | Cushion (classic glow), Princess (edgy square), Oval (bigger face) | Balanced luxury, confident style |
| 14 ct | 15.5–15.7 mm | $21,500 – $23,000 | Round (brilliant), Emerald (elegant), Oval (elongated) | Grand, sophisticated presence |
| 15 ct | 15.8–16.0 mm | $23,000 – $25,000 | Pear (elongates finger), Radiant (vivid sparkle) | Statement-making, bold choice |
Price jumps above 10 ct are non-linear, reflecting rarity, craftsmanship, and visual impact. Certain cuts like oval or radiant can make smaller carats look visually larger without steep cost increases. Choose 13 ct for simplicity, 14 ct for refined grandeur, and 15 ct for ultimate extravagance.
Which Diamond Shapes are Best for 14 Carat Engagement Rings?
For a carat this significant, the stone’s shape defines its personality. Here are the top five that shine at this carat weight:
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Round Brilliant: Maximum sparkle and symmetry — classic perfection.
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Oval: Appears larger, blending elegance with a slimming finger effect.
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Princess: Contemporary charm with sharp clean edges.
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Cushion: Soft, vintage appeal with gentle brilliance.
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Emerald: Showcases clarity and understated glamour.
Round diamonds generally carry a small price premium, while fancy shapes like oval or cushion offer better size-to-cost value without compromising style.
See top settings → Engagement Rings Collection
Best Buying Tips for 14 Carat Lab Diamond Rings
When buying a 14-carat ring, focus on quality and balance over size alone.
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Prioritise the cut — it determines brilliance.
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Choose D–F colour for a superior white finish.
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Opt for VS–VVS clarity in lab-created stones.
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Enjoy 40–60% savings over mined diamond prices.
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Select shape and setting that fit your lifestyle and hand type.
Example: A couple chose a 14 ct radiant-cut ring for its large face appearance and vivid sparkle. The choice allowed them to save budget for custom pavé details, enhancing both design and elegance.
Calculate your perfect fit → Find Your Ring Size
Popular Settings for 14 Carat Diamond Rings
The setting you choose should balance structure, brilliance, and comfort for an 14 ct stone.
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Solitaire: Timeless and elegant focus on the diamond.
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Halo: Adds brilliance and emphasises roundness, enhancing size visually.
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Pavé: Micro-diamonds sparkle along the band for added dimension.
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Three-Stone: Represents your shared journey — past, present, and future.
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Minimalist: Sleek and refined for a contemporary aesthetic.
A Halo or Three-Stone setting enhances perceived size, while Solitaire offers pure, understated luxury.
Image Alt: 14 Carat Diamond Ring in Halo Setting
Custom-Made 14 Carat Lab Diamond Rings
Customising your ring lets you combine craftsmanship and emotion. A custom 14 ct piece allows complete control — from shape and setting to precious metal and personal engraving.
Our craftsmen offer loose diamond selection, 3D CAD design, and hand-finished production tailored to your preferences. You can build your dream ring while staying within budget and achieving exclusivity.
Start designing your perfect piece → Custom Jewelry
Work with us to create a bespoke 14 Carat diamond ring that tells your unique story.
FAQs about 14 Carat Diamond Rings
How much does a 14 Carat diamond ring cost?
Between $21,500–$23,000 USD or £17,620–£18,860 GBP for top VS–VVS, D–F lab diamonds.
How big is a 14 Carat diamond in mm?
A round brilliant 14-carat diamond measures about 15.5–15.7 mm.
Is a 14 Carat ring good for an engagement?
Yes — it’s a luxurious yet balanced choice for an unforgettable engagement.
Are lab-grown diamonds cheaper?
Yes, they cost nearly 60% less than mined diamonds with identical beauty and certification.
Which settings make it look bigger?
Halo and oval designs enhance the face-up appearance for greater visual spread.
Conclusion
A 14 carat lab-grown diamond ring represents perfection — powerful presence, ethical origin, and timeless craftsmanship. It’s ideal for those who embrace elegance with a modern touch, delivering unparalleled sparkle at outstanding value.
At Gilibili, we combine cutting-edge technology with artisanal design to craft certified, high-quality lab-grown diamond rings you’ll treasure forever. Explore our curated 14 Carat Diamond Ring collection to discover your next symbol of love and luxury.
Shop Now → https://gilibili.com/pages/engagement-rings
Connect with us anytime on WhatsApp at +91 8200212331 - click to chat for (instant reply) or email hello@gilibili.com (reply within 2 days) for quotes and expert assistance. Whether you’re investing in a loose diamond, designing a custom ring, or shopping for a dream engagement piece — we make brilliance personal.