Exceptional Diamonds
Lab-grown & natural diamond engagement rings — GIA- or IGI-certified, set in solid gold or platinum, shipped fully insured.
How It Works
Your diamond, your ring, in three steps.
Choose your diamond
Lab-grown or natural — every stone GIA- or IGI-certified and Triple Excellent. Filter by shape, carat, color, and clarity.
Pick your setting
Solitaire, pavé, three-stone, and more — in 9K, 14K, or 18K white, yellow, or rose gold.
Crafted & shipped to you
Your ring is made to order and arrives fully insured, with its grading report — backed by 30-day returns.
Shop
Find your ring.
Most Popular
The Bezel Set Solitaire
From $810.00
The Split Shank Pavé Solitaire
From $980.00
Round Trellis Solitaire
From $880.00
Round Cathedral Solitaire
From $840.00
Tapered Pavé Solitaire
From $910.00
Half-Eternity Pavé Solitaire
From $950.00
Round Twisted Pavé Solitaire
From $1,120.00
Round Wide-Band Solitaire
From $1,080.00
Triple Excellent
The rarest grade. Every time.
3EX means Excellent on all three of the GIA’s craftsmanship grades — cut, polish, and symmetry. It’s the highest standard awarded, earned by fewer than 3% of diamonds, and it’s what gives a stone its maximum brilliance and sparkle. Every Tessera diamond meets it.
Why Tessera
Cut from a different cloth.
Triple Excellent
Cut, polish, and symmetry graded Excellent by GIA or IGI — the pinnacle of optical performance.
GIA & IGI Certified
Every stone ships with an authentic GIA or IGI grading report — the global gold standard.
Conflict-Free
Fully Kimberley Process compliant. Every diamond traced and verified from mine to ring.
Secure & Insured
Fully insured shipping, discreet packaging, and 30-day hassle-free returns.
Ring Builder
Build the ring
she'll love forever.
Choose your diamond, select your setting, and we’ll bring them together. Our team guides you every step of the way.
Choose a Diamond
Filter by shape, carat, color, and clarity from our live inventory.
Select a Setting
Solitaire, halo, pavé, and more — in 9k, 14k & 18k white, yellow, or rose gold, or 950 platinum.
Complete Your Ring
Choose your ring size and finishing touches, then add to cart — shipped fully insured.
From Mine to Ring
Every step. Verified.
We trace each diamond through its entire journey so you know exactly what you're wearing.
01
Ethical Source
Every diamond originates from a Kimberley Process-certified mine with verified chain of custody documentation.
02
GIA Grading
Submitted to an independent laboratory — GIA or IGI. Only stones that achieve Triple Excellent enter our inventory.
03
Expert Setting
Master craftspeople set your stone in the metal and setting of your choice. Every detail reviewed by our quality team.
04
Delivered to You
Fully insured, discreet delivery with real-time tracking. Arrives in our signature black and gold presentation box.
Our Story
Every facet
tells a story.
Tessera Diamonds was founded on a simple conviction: that buying a diamond should feel as extraordinary as the moment it commemorates. We source exclusively from the world's most rigorous grading networks — every stone GIA- or IGI-certified, every cut held to Triple Excellent standards.
Based in Texas, built for the world. We combine the ease of online shopping with the depth of expertise you'd expect from a fifth-avenue jeweler — no pressure, no guesswork, just exceptional diamonds delivered to your door.
01
Uncompromising Curation
We accept only the finest available stones — Triple Excellent cut, stringent clarity, exceptional color — so every diamond in our collection is worthy of the moment it marks.
02
Complete Transparency
Every diamond ships with its GIA or IGI grading report. You see exactly what you're buying — down to the decimal — before you ever click purchase.
03
Personal From Day One
Real people, not chatbots. Our team guides you from first question to final delivery — because the most important purchases deserve the most personal care.
The Four Cs
How to read a
great diamond.
Every Tessera diamond is graded by the GIA on four criteria. Understanding them helps you choose with confidence.
Cut
The most important of the four. Cut determines how light moves through a diamond — its brilliance, fire, and scintillation. We only carry Excellent and Ideal grades.
Color
Graded D–Z, where D is perfectly colorless. The closer to D, the more rare and valuable. Our collection focuses on D–H — the range where colorlessness is visible to the eye.
Clarity
Measures internal inclusions and external blemishes. FL is flawless; VS1–VS2 inclusions are invisible to the naked eye. We recommend VS2 or better for an eye-clean result.
Carat
Carat is the unit of weight, not size — though larger carats are generally larger in diameter. A well-cut 1.0ct can appear bigger than a poorly-cut 1.2ct. Cut always comes first.
Early Access
Be first to wear it.
A quiet note the moment each new piece becomes available — preview imagery, early-access pricing, and nothing else. Unsubscribe anytime.
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Your diamond.
Your ring.
Exceptional diamonds. Timeless craftsmanship. Delivered to your door.