Is a CVD diamond a real diamond?

Yes. A CVD (Chemical Vapor Deposition) diamond is a real diamond in every scientific and gemological sense. It is chemically, physically, and optically identical to a mined diamond. The only difference is origin — CVD diamonds grow in a controlled laboratory environment rather than underground.

Are lab grown diamonds as good as real diamonds?

Yes. Lab-grown diamonds are real diamonds, graded by the same international standards as mined stones. Ronora uses VVS clarity, D-E-F colorless CVD lab-grown diamonds exclusively — the top tier of both grading scales. They have the same hardness, brilliance, and durability as mined diamonds.

Does my ring come with IGI certification?

IGI certification is included for rings with a center stone of 1.0 carat or above. Rings with smaller center stones meet the same VVS clarity and D-E-F colorless standards but do not include individual stone certificates. All diamonds are independently selected to these specifications.

Can you shower with a lab-grown diamond ring?

It is safe but not recommended as a daily habit. Soap, shampoo, and conditioner leave a film on the diamond that dulls its sparkle over time. If you shower with your ring regularly, clean it weekly with warm water and mild dish soap to maintain full brilliance.

Can lab grown diamonds be worn every day?

Yes. Diamond scores 10 on the Mohs hardness scale — the hardest natural substance — and is designed for everyday wear. Lab-grown diamonds are physically identical to mined diamonds and will not scratch or lose brilliance with daily use.

Can I get my ring resized after purchase?

Yes. Ronora offers complimentary resizing within the first year of purchase. Contact us via WhatsApp or our contact page to arrange resizing for your ring.

How long does production and shipping take?

All Ronora rings are made to order. Production typically takes 10 to 14 business days. Shipping to the USA, UK, Australia, and Canada takes an additional 5 to 10 business days via tracked and insured courier.

Do you ship to the USA, UK, and Australia?

Yes. Ronora Diamond ships to the USA, UK, Australia, Canada, and internationally. All orders are sent via tracked and insured courier. Production is based in Surat, India — the world's diamond crafting capital.

Marquise Three Stone Lab Grown Diamond Ring

Name: Marquise Three Stone Lab Grown Diamond Engagement Ring | IGI Certified
Brand: Ronora Diamond
SKU: R17
Price: 1058.56 USD
Availability: InStock

Marquise three stone lab grown diamond engagement ring in a trilogy silhouette: the Vivienne centers a marquise CVD lab grown diamond flanked by two matching marquise side stones, all three aligned in a continuous east-west line that runs the full width of the finger. This marquise three stone lab grown diamond engagement ring delivers maximum visual coverage through the trilogy format — three stones, one unified statement.

The three-stone design of this marquise three stone lab grown diamond engagement ring represents past, present, and future in a shape that carries both modernity and history. The marquise cut dates back to 18th-century France while the CVD origin positions it squarely in the future. Available from 2ct to 7ct TCW with IGI certification included.

Every Ronora marquise three stone lab grown diamond engagement ring is made to order in your chosen metal and carat size. Each stone is a CVD lab grown diamond, identical in every optical and physical property to mined diamonds. VVS clarity. D-E-F colorless range.

✦ RING DETAILS ✦

➼ Style: Three-Stone / Trilogy Engagement Ring
➼ Setting: Prong Set (center + side stones)
➼ Band: Solid Shank
➼ Finish: High Polish
➼ Metal Options: 925 Sterling Silver, 10K Gold, 14K Gold, 18K Gold, Platinum
➼ Gold Colors: White Gold, Yellow Gold, Rose Gold
➼ Made To Order: Yes

✦ CENTRE LAB DIAMOND DETAILS ✦

➼ Shape: Marquise
➼ Diamond Type: Real CVD Lab-Grown Diamond
➼ Clarity: VVS
➼ Color: D-E-F Colorless Range
➼ Available TCW: 2ct / 3ct / 4ct / 5ct / 6ct / 7ct
➼ Certification: IGI Certified (center stone — certificate included)

✦ SIDE DIAMONDS ✦

➼ Shape: Marquise (matching pair)
➼ Diamond Type: Real CVD Lab-Grown Diamond
➼ Clarity: VVS
➼ Color: D-E-F Colorless Range

🌱 Lab Grown Diamond

Lab Grown Diamond (also known as Lab Created Diamond, CVD Diamond, Eco-Friendly Diamond, Ethical Diamond). Identical in every physical and optical property to mined diamonds. Conflict-free and responsibly created using advanced CVD (Chemical Vapor Deposition) technology.

🎁 Packaging

Each Ronora ring arrives in a signature gift box, ready to present.

🚚 Production and Shipping

Made to order. Production time 10 to 14 business days. Worldwide shipping available.

💍 Perfect For

Engagement proposals
Anniversary and milestone gifting
Bridal jewelry
Luxury self-purchase
Statement everyday wear

Ronora - Made for the Moments

Diameter in mm	Circumference in mm	Australia & New Zealand	USA & Canada
14.1	44.2	F	3
14.5	45.5	G	3 1/2
14.9	46.7	H	4
15.3	48.0	I	4 1/2
15.5	48.7	J	4 3/4
15.9	49.9	K	5 1/4
16.3	51.2	L	5 3/4
16.7	52.5	M	6 1/4
17.5	55.0	O	7 1/4
17.9	56.3	P	7 3/4
18.3	57.6	Q	8 1/4
18.7	58.9	R	8 3/4
19.2	60.1	S	9 1/4
19.6	61.4	T	9 3/4
20.0	62.7	U	10 1/4
20.4	64.0	V	10 3/4
20.8	65.2	W	11 1/4
21.2	66.5	X	11 3/4
21.8	68.4	Z	12 1/2
22.4	70.3	Z1	13 1/4
22.8	71.6	Z2	13 3/4
23.0	72.3	Z3	14
23.4	73.5	Z4	14 1/2

Marquise Three Stone Lab Grown Diamond Engagement Ring | IGI Certified

✦ RING DETAILS ✦

✦ CENTRE LAB DIAMOND DETAILS ✦

✦ SIDE DIAMONDS ✦

🌱 Lab Grown Diamond

🎁 Packaging

🚚 Production and Shipping

💍 Perfect For

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Free Shipping & Returns

Free Lifetime Warranty

Lifetime Diamond Upgrade

Free 1-Year Resizing

What is White Prong?

By choosing our lab grown diamonds, together we can save:

250 tons of earth

120 gallons of water

143 lbs of carbon dioxide

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