18K Solid Gold 2.88 CT Oval Lab Grown Diamond Ring
The Karat Store · Handcrafted in Solid Gold
Introducing The 18K Solid Gold Oval Cut Tanzanite And Diamond Ring a masterpiece of elegance and sophistication.
Crafted from 18K Solid Gold, this exquisite ring is available in white, rose, and yellow gold, allowing you to choose the perfect hue to complement your personal style. Whether celebrating a special engagement or adding a touch of luxury to your jewelry collection, this ring embodies timeless beauty and exceptional craftsmanship.
Exquisite Tanzanite and Diamond Design
At the heart of this ring lies a captivating 2.88CT oval-cut tanzanite, renowned for its vivid blue hues and remarkable brilliance.
The tanzanite is beautifully surrounded by a halo of 0.68CT-TW round-cut diamonds, meticulously selected for their G-H color and VS1-VS2 clarity. This harmonious blend of vibrant tanzanite and sparkling diamonds creates a stunning contrast, enhancing the overall allure and making this ring a true standout piece.
Luxurious 18K Solid Gold Construction
Crafted with precision, the 18K Solid Gold band ensures both durability and a polished, luxurious finish. Available in white, rose, and yellow gold, you can select the metal that best matches your wardrobe or personal preference. The high-quality gold not only provides a sturdy foundation for the gemstones but also adds a timeless shine that complements any attire.
Certified Authenticity and Quality
This ring is BIS Hallmarked, guaranteeing the authenticity and purity of the gold used. Additionally, the gemstones are certified by IGI, ensuring that each tanzanite and diamond meets the highest standards of quality and brilliance. This certification provides peace of mind, knowing that you are investing in a genuine and meticulously crafted piece of jewelry.
Perfect for Special Occasions
Whether you're proposing to a loved one or seeking a statement piece for a significant milestone, the 18K Gold Tanzanite and Diamond Engagement Ring is the perfect choice. Its elegant design and vibrant gemstones make it suitable for a variety of occasions, seamlessly transitioning from formal events to everyday elegance. This ring not only symbolizes love and commitment but also serves as a cherished addition to your jewelry collection.
Key Features :
Frequently Asked Questions
Is diamond durable enough for everyday wear?
Yes. Diamond rates 10 on the Mohs hardness scale, making this piece durable enough for daily wear.
How much does this diamond ring cost in solid gold?
At The Karat Store, this diamond ring starts at $4,917.9 in 10K gold, $5,548.4 in 14K gold, and $6,305 in 18K gold — all solid gold, not plated.
Should I choose 10K, 14K, or 18K gold for this piece?
18K gold (75% pure) has the richest color and softest feel. 14K gold (58.3% pure) is the most popular balance of durability and value. 10K gold (41.7% pure) is the most affordable and most scratch-resistant.
Is this solid gold all the way through, or just gold-plated?
This piece is solid gold throughout, not gold-plated — the karat purity runs all the way through the metal. Unlike plated jewelry, it won't flake, discolor, or expose base metal over time, and it carries a karat hallmark stamp as proof of authenticity.
Can this ring be resized?
Yes. Select your ring size from the dropdown before checkout. If you're unsure of your size, we recommend visiting a local jeweler for an accurate measurement.
How do I clean and care for this piece at home?
Clean gently with warm water, a mild soap, and a soft brush, then dry thoroughly. Avoid chlorine, harsh chemicals, and ultrasonic cleaners, and store it separately from other jewelry to prevent scratching.
Ring Silhouette: Halo
Available Metal Colours: Yellow Gold, White Gold, Rose Gold
Available Ring Sizes: US 2 to US 13 in quarter-size increments (45 sizes)
Explore more: Lab Grown Diamond Rings | Lab Grown Diamond Jewelry | Diamond Rings | Gold Rings
Every piece is cast and finished by hand in genuine solid gold — choose 10ct, 14ct or 18ct in yellow, white or rose gold. Never plated, never filled, made to be worn for a lifetime.
Stones are conflict-free: lab-grown diamonds, moissanite and hand-selected natural gemstones, each set and polished by our artisans.
Your jewellery is crafted to order in your chosen gold colour, carat and size.
All ring sizes are shown in UK sizes (letters), and every size is the same price within each gold colour and carat. Half sizes (e.g. L½) are available in the size selector.
| UK | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|
| H | 14.7 | 46.1 |
| I | 15.1 | 47.4 |
| J | 15.5 | 48.7 |
| K | 15.9 | 49.9 |
| L | 16.3 | 51.2 |
| M | 16.7 | 52.5 |
| N | 17.1 | 53.8 |
| O | 17.5 | 55.0 |
| P | 17.9 | 56.3 |
| Q | 18.3 | 57.6 |
| R | 18.7 | 58.9 |
| S | 19.1 | 60.2 |
| T | 19.6 | 61.4 |
| U | 20.0 | 62.7 |
| V | 20.4 | 64.0 |
| W | 20.8 | 65.3 |
| X | 21.2 | 66.5 |
| Y | 21.6 | 67.8 |
| Z | 22.0 | 69.1 |
| Z+1 | 22.4 | 70.4 |
Not sure of your size? Measure the inside of a ring that already fits, use a ring sizer, or visit a local jeweller for a professional sizing. We are happy to help — get in touch before you order.
Remove your jewellery before swimming, cleaning or the gym. Clean gently with warm water, mild soap and a soft brush, then dry with a lint-free cloth. Store each piece separately to prevent scratches.
Solid Gold, Always
Crafted in genuine 10ct, 14ct or 18ct gold — never plated, never filled.
Made to Order
Handcrafted for you and dispatched within 4 working days.
Conflict-Free Stones
Lab-grown diamonds, moissanite and hand-selected gemstones.
Personal Guidance
Questions on ring size, gold or stones? We are here to help.
Curated for You