






6.50tcw Radiant Lab Diamond Engagement Ring | Emerald Side Stones | IGI Certified
Ring Size Conversion Chart
Determining your ring size can be tricky without the proper tools. Use our Ring Size Conversion chart below to find your ring size in different countries. Need help? Speak with a Diamond Expert now by WhatsApp +91 8238581658
Ring Diameter (MM) | USA/Canada | United Kingdom | France | Germany | Japan | Switzerland |
---|---|---|---|---|---|---|
14.0 mm. | 3 | F | 44 | 14 | 4 | 4 |
14.4 mm. | 3½ | G | 45¼ | 14½ | 5½ | 6⅓ |
14.8 mm. | 4 | H½ | 46½ | 15 | 7 | 6½ |
15.2 mm. | 4½ | I½ | 47¾ | 15¼ | 8 | 8 |
15.6 mm. | 5 | J½ | 49 | 15¾ | 9 | 9½ |
16.0 mm. | 5½ | L | 50¾ | 16 | 10½ | 10¾ |
16.5 mm. | 6 | M | 51½ | 16½ | 12 | 12¾ |
16.9 mm. | 6½ | N | 52¾ | 17 | 13 | 14 |
17.3 mm. | 7 | O | 54 | 17¼ | 14 | 15¼ |
17.7 mm. | 7½ | P | 55¼ | 17¾ | 15 | 16½ |
18.2 mm. | 8 | Q | 56¾ | 18 | 16 | 17¾ |
18.6 mm. | 8½ | Q½ | 58 | 18½ | 17 | 18½ |
19.0 mm. | 9 | R½ | 59¼ | 19 | 18 | 20 |
19.4 mm. | 9½ | S½ | 60¾ | 19½ | 19 | 21 |
19.8 mm. | 10 | T½ | 61¾ | 20 | 20 | 21¾ |
20.2 mm. | 10½ | U½ | 62¾ | 20¼ | 22 | 22¾ |
20.6 mm. | 11 | V½ | 64¼ | 20¾ | 23 | 24 |
21.0 mm. | 11½ | W½ | 66 | 21 | 24 | 25¾ |
21.4 mm. | 12 | Y | 67¼ | 21¼ | 25 | 27½ |
21.8 mm. | 12½ | Z | 68 | 21¾ | 26 | 28¾ |
22.2 mm. | 13 | Z + 1 | 69 | 22 | 27 | 29¼ |
22.6 mm. | 13½ | Z + 1.5 | 71 | 22.6 | - | 31 |
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Description

Make a grand statement with this 6.50tcw Radiant lab-grown diamond ring. Features a 3.00ct radiant center and 3.50ct emerald side stones, IGI certified.
💎 Center Stone Details
Shape: Radiant
Carat Weight: 3.00ct
Color: D–E–F
Clarity: VVS–VS
Certification: IGI Certified
💎Side Stone Details
Shape: Emerald Cut
Carat Weight: Approx. 3.50ct Total
Color: E–F
Clarity: VS
💫 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗧𝗵𝗶𝘀 𝗥𝗶𝗻𝗴?
✓ Massive 6.50tcw design with radiant center and emerald side diamonds
✓ IGI certified for superior brilliance, color, and clarity
✓ Luxuriously crafted in eco-friendly lab-grown diamonds
✓ Bold and timeless design for an unforgettable engagement
✓ Customizable in your choice of gold and setting style
🚚 Free Shipping and Returns
🔄 30-day return and refund policy for peace of mind
✅ Fully insured and tracked shipping via UPS & USPS
⏱️ Handcrafted with care – 5–7 days production time
🌍 Worldwide delivery in 5–7 business days
🌱 Why Choose Lab Diamonds?
✓ Ethical & Conflict-Free – Grown in labs with zero mining impact
✓ IGI Certified Quality – Independently verified for clarity, color, and carat
✓ No BGM Stones – Guaranteed no brown, green, or milky undertones
✓ Eco-Friendly Luxury – Timeless beauty, sustainably made
✓ Ideal for Custom Jewelry – Engagement rings, wedding bands, and more
🛠️ Customized Jewelry Made Just for You
We offer complete customization on all jewelry pieces.
Gold Options: 10k, 14k, 18k & Platinum
Gold Colors: Yellow, White, Rose
Design Types: Engagement rings, earrings, pendants, necklaces, bracelets, and more
💎 Why Antique Cut?
🌟 Surat-Made Brilliance – Crafted in India’s diamond hub
💎 Certified Sparkle – IGI-certified lab-grown diamonds
💸 Unmatched Value – Low prices Diamond + low making charges
🖌️ Truly Custom – Unique designs tailored for you
📦 Worldwide Shipping – Fast, Free, insured, and reliable
💰 Why Our Prices Beat Everyone—Without Cutting Quality
🏭 Direct from Our Factory: No middlemen. We cut, polish & set the diamonds ourselves.
🌍 Surat-Sourced Advantage: From the diamond capital of the world—best rates, best stones.
📜 IGI & GIA Certified: Only globally trusted, lab-certified diamonds—guaranteed.
💎 Luxury Quality, No Markup: Same stones as top brands—minus the 5x price tag.
🔧 In-House Gold & Platinum Work: Precision-made, ethically crafted in solid metals.
⭐ Global Trust, Local Price: Loved by customers worldwide for elite quality at honest prices.
💍 Explore Collection on Etsy
𝐕𝐢𝐬𝐢𝐭 Etsy 𝐒𝐡𝐨𝐩 →https://antiquecut.etsy.com

Our Commitments
Our reputation for excellence includes.

📦 Secure Shipping
Free worldwide delivery in 5–7 days via USPS, UPS & DPEX.

💎 IGI / GIA certified
We stand proudly behind our diamond and jewelry quality.

🎉 Holiday Specials
Enjoy exclusive holiday deals — use code SAVE10% at checkout!

🤝 Customer Care
Hassle-free support & free 30-day returns on all orders.