Unii Jewels
3.10TCW Marquise Lab Grown Diamond Nature Inspired Engagement Ring | IGI Certified | Unii Jewels
Round Brilliant Lab Grown Diamond Solitaire Stud Earrings – IGI Certified | Unii Jewels on orders over $3,000
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Description
Elongated elegance meets organic detailing in the Unii Jewels 3.10TCW Marquise Lab Grown Diamond Nature Inspired Engagement Ring, designed around a striking 2.50ct Marquise Lab Grown Diamond complemented by 0.60TCW of Round diamond accents.
The main Marquise diamond is specified with D color, VS1 clarity and Excellent cut, accompanied by IGI certification. Supporting the centerpiece are Round diamonds totaling 0.60TCW, specified with E color and VS2 clarity, bringing the complete diamond weight to 3.10TCW.
The combination creates a compelling nature-inspired composition. The Marquise center provides an elongated, pointed silhouette with strong directional movement, while the smaller Round accents introduce softer points of brilliance around the design. A refined 2mm band completes the composition without competing with the substantial diamond arrangement.
Diamond Details
Total Diamond Weight: 3.10TCW
Main Diamond
Diamond Type: Lab Grown Diamond
Diamond Shape: Marquise
Carat Weight: 2.50ct
Diamond Color: D
Diamond Clarity: VS1
Cut: Excellent
Certification: IGI Certified
Side Diamonds
Diamond Shape: Round
Total Carat Weight: 0.60TCW
Diamond Color: E
Diamond Clarity: VS2
Certification: N/A
Ring Details
Style / Design: Nature Inspired
Product Type: Nature Inspired Ring
Band Width: 2mm
Metal Options: Silver, Gold, Platinum
Wear: Engagement, wedding, anniversary, occasion and fine-jewelry wear
The Design Story
From a jewelry designer's perspective, the Marquise shape naturally lends itself to nature-inspired jewelry.
Its elongated body terminates in two defined points, creating a silhouette that already carries the visual language of a leaf or petal. That makes the 2.50ct Marquise an expressive starting point for an organic composition.
Instead of surrounding it with another strongly directional shape, the design pairs it with Round diamond accents.
This creates an intentional contrast:
Pointed Marquise Geometry × Soft Round Brilliance
The Marquise establishes direction and movement.
The Round diamonds soften the composition and introduce smaller, symmetrical points of light.
Building the Design Around a 2.50ct Marquise
A substantial Marquise center needs room to remain visually dominant.
At 2.50ct, the center accounts for most of the ring's 3.10TCW diamond weight, so the design naturally establishes a strong focal hierarchy.
The eye first encounters the elongated center.
It then moves outward toward the smaller Round accents.
This creates a visual progression rather than presenting every diamond with equal importance:
Round Accent Detail → 2.50ct Marquise Center → Round Accent Detail
For a nature-inspired design, that progression can create a more fluid character than the rigid symmetry associated with conventional three-stone or halo arrangements.
Why Round Accents Complement a Marquise Center
The relationship between the center and accent shapes is one of the strongest aspects of this composition.
A Marquise is elongated, pointed and directional.
A Round diamond is compact, symmetrical and visually neutral in orientation.
Placing smaller Round diamonds alongside a strong Marquise centerpiece therefore introduces contrast without competing with the center's distinctive silhouette.
The 0.60TCW of Round accents also provides meaningful supporting brilliance.
They are not merely tiny decorative details—their combined weight allows them to contribute noticeably to the overall 3.10TCW composition while remaining individually secondary to the 2.50ct center.
Nature-Inspired Without Losing the Center Diamond
A nature-inspired engagement ring can become visually busy if every decorative element demands equal attention.
Here, the distribution of diamond weight helps avoid that problem.
The substantial Marquise remains the centerpiece, while the smaller Round diamonds provide supporting detail.
This creates three visual levels:
2.50ct Marquise — Primary Focus
0.60TCW Round Diamonds — Supporting Brilliance
2mm Band — Structural Foundation
That hierarchy allows the ring to carry an expressive nature-inspired identity while preserving the prominence expected from a substantial center diamond.
Why the 2mm Band Works
The 2mm band provides an important contrast in scale.
With 3.10TCW of diamonds contributing to the upper composition, a refined band allows the diamond arrangement to feel visually significant without adding unnecessary heaviness.
From a jewelry sketch perspective, the transition becomes:
Fine Band → Organic Accent Detail → Elongated Marquise Center → Organic Accent Detail → Fine Band
This gradual change in scale helps guide the eye naturally toward the centerpiece.
Why Choose This Marquise Nature-Inspired Design?
This ring is designed for someone who wants a center diamond with more directional personality than a conventional Round or square shape while also wanting more artistic detail than a traditional solitaire.
The Marquise center immediately establishes individuality through its elongated proportions and pointed ends. Its silhouette already has an organic quality, making it particularly compatible with nature-inspired design.
The Round accents then provide a softer counterpoint. Instead of repeating the sharp geometry of the center, they introduce circular brilliance that helps create visual rhythm around it.
With 0.60TCW of supporting diamonds, the nature-inspired detailing has enough presence to become an important part of the design, yet the substantial 2.50ct Marquise remains unmistakably dominant.
Unlike a Halo, the concept does not depend on tracing another diamond outline around the center. Instead, its personality comes from the interaction between a distinctive elongated centerpiece and smaller supporting diamonds.
The result is a 3.10TCW engagement ring where the pointed elegance of a substantial Marquise center meets softer Round diamond brilliance—creating a refined balance of movement, contrast and nature-inspired character.
Free Shipping & Returns
🔄 30-day return and refund policy for peace of mind
✅ Fully insured and tracked shipping via UPS & USPS
⏱️ Handcrafted with care,9-10 days production time🌍 Worldwide delivery in 8-10 business daysafter production
Please read the Shipping Policy for more information.
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
Why Unii Jewels?
🌟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
Ring Size Chart
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 7359257266
| 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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Great company the pictures does no…
Great company the pictures does no justice for how magnificent the ring actually looks in person. My fiancée loves it and get compliments on her ring every time
I asked for a custom band after I…
I asked for a custom band after I ordered and my personal contact which was assigned to me and proactively reached out handled it for a very small cost. I couldn't be happier. Also...She said YES!
Great customer service & Beautiful ring
I initially had an issue with receiving a ring that did not match the expected specifications, but their team, especially Paul & Mary, worked with me directly to resolve everything in a fair and professional manner.
Amazing experience
The customer service I received from Lisa was amazing. She was helpful, patient and a pleasure to work with.
Gorgeous Ring
The ring is more beautiful than the picture. I couldn't be happier with it.
Ordered anniversary ring 02/18
While there were multiple delays and missed shipping dates, Paul made the corrections and the ring came today. Most importantly the wife loves it.
Recommend & will consider purchasing again
This is my second order from this company. I originally had a not so pleasant experience with the order arriving outside of the delivery frame. Paul and Adam were super helpful and ended up giving me a resolution that I was happy with.
I love my ring
I love my ring! I was hesitant to order a diamond ring online but I was not disappointed when it came in! It's so pretty and the price was unbeatable.
I had an excellent experience with Best…
I had an excellent experience and especially with Adam, who made the entire process feel incredibly personal from start to finish.
Great people and Service
Great people, my wife decided she did not like the initial ring she got for Christmas so we had to swap out for a different design and ring size. Samantha and Paul were amazing in walking me through the process.
I had an absolutely amazing experience…
I had an absolutely amazing experience from start to finish. They truly went above and beyond in helping me choose the perfect engagement ring and wedding band.
My ring is beautiful and it arrived…
My ring is beautiful and it arrived earlier than expected. Definitely recommend.
After 11 years and our second daughter, I finally have my dream ring.
I've worn a ring for 11 years that never truly felt like mine. After our second daughter was born, my husband and I decided it was time to finally get it right.
my wife to be loves her ring
my wife to be loves her ring. she stares and takes pictures of it all day, everyday. couldn't be happier
Their diamonds is outstanding, I highly recommend
After extensive research, I chose to purchase from them and couldn't be happier with my decision. The quality of their diamonds is outstanding.
Amazing experience
Amazing experience! Customer service is superb, and the ring is perfectly made with top quality diamond and craftsmanship.
A M A Z I N G
I wanted to purchase a lab grown diamond because after all the researching, more bang for the buck! But, I was very skeptical about online purchases for a diamond ring.
Amazing as advertised perhaps better.
Amazing as advertised perhaps better.
Had the best experience working with…
Had the best experience working with Julieanne and her team. Julieanne was great to work with and the speed, quality and customer service was above and beyond.
Mary
Mary, and a couple of other associates were phenomenal. Mary took the time to find just the right ring for my wife.