Unii Jewels
1.50ct Princess Cut Lab Grown Diamond Solitaire 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
Clean geometry, crisp symmetry and center-stone brilliance define the Unii Jewels 1.50ct Princess Cut Lab Grown Diamond Solitaire Engagement Ring—a refined solitaire created around the distinctive square silhouette of a Princess Cut diamond.
At the center is a 1.50ct Princess Cut Lab Grown Diamond, specified with D color, VVS1 clarity and Excellent cut, accompanied by IGI certification.
With no supplied side diamonds or halo, the entire 1.50ct total diamond weight is concentrated in the center stone. This gives the Princess Cut complete visual authority and keeps the overall design focused, modern and uncluttered.
A refined 2mm band width provides a clean foundation beneath the center diamond while preserving the strong geometric character that makes the Princess Cut instantly recognizable.
Diamond Details
Total Diamond Weight: 1.50ct
Main Diamond
Diamond Type: Lab Grown Diamond
Diamond Shape: Princess
Carat Weight: 1.50ct
Diamond Color: D
Diamond Clarity: VVS1
Cut: Excellent
Certification: IGI Certified
Ring Details
Style / Design: Solitaire
Product Type: Solitaire Engagement Ring
Band Width: 2mm
Metal Options: Silver, Gold, Platinum
Wear: Engagement, wedding, anniversary, occasion and fine-jewelry wear
The Design Story
From a jewelry sketch artist's perspective, this ring begins with one of the strongest geometric forms available:
the square.
Unlike an Oval or Pear, which creates movement through elongated curves, the Princess Cut establishes its identity through straight sides, defined corners and balanced proportions.
That geometry naturally suits a solitaire.
There is no need to surround the center with additional shapes to establish visual character—the diamond's own silhouette already provides it.
The design therefore follows a deliberately restrained hierarchy:
1.50ct Princess Center → clean metal → refined 2mm band.
Everything directs attention back toward the center diamond.
Why Princess Cut + Solitaire Works So Well
A Princess Cut combines two characteristics that are particularly effective in an engagement ring:
structured geometry and lively faceted brilliance.
Its square outline gives the ring an architectural quality, while the internal faceting prevents the center from feeling visually static.
This creates an interesting contrast.
From the outside, the diamond appears disciplined and geometric.
Inside that outline, the facets create a much more energetic visual character.
A solitaire setting allows both qualities to remain clearly visible.
Adding multiple side stones or a surrounding halo would introduce additional shapes into the composition. Here, the design remains intentionally focused on the Princess Cut itself.
The Importance of Proportion
At 1.50ct, the center diamond has enough scale to create a confident presence without requiring additional diamonds to build the composition.
The 2mm band then acts as a proportional counterbalance.
It provides a defined visual foundation beneath the square center while remaining refined enough that the band does not compete with the diamond.
From a design standpoint, the relationship is simple:
Large geometric center + refined linear band.
The eye naturally travels along the band and stops at the square centerpiece.
Why Choose This Princess Solitaire Design?
This design is particularly suited to someone who wants the simplicity of a classic solitaire but prefers a more geometric center shape than a traditional Round diamond.
The Princess Cut gives the ring a contemporary, architectural personality while the solitaire format keeps the overall presentation timeless.
There are no supplied accent diamonds competing for attention.
There is no halo changing the outline of the center.
Instead, the 1.50ct Princess diamond itself becomes the complete visual statement.
That restraint also makes the ring versatile. Its clean composition can work as an engagement ring, anniversary piece or distinctive fine-jewelry design without relying on excessive ornamentation.
The result is a balance of square geometry, refined proportions and single-stone brilliance—a solitaire designed for someone who believes one exceptional center diamond can define the entire ring.
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.