The Oval Solitaire
YOUR STONE · PT 950 / 18K
From $4,200Made to order
Treated black diamond solitaire rings
Diamond made opaque black by treatment. We say treated, not enhanced. Every piece shown is a real work in the studio today. · 15 WORKS
Available works
The Oval Solitaire
NATURAL DIAMOND · OVAL · PT 950 · 1.21 CT
$8,940At the bench 4 to 6 weeks
The Round Solitaire
NATURAL DIAMOND · ROUND · PT 950 · 1.03 CT
$7,120At the bench 4 to 6 weeks
The Marquise Solitaire
NATURAL DIAMOND · MARQUISE · PT 950 · 1.15 CT
$6,480At the bench 4 to 6 weeks
The Emerald cut Solitaire
NATURAL DIAMOND · EMERALD CUT · PT 950 · 1.55 CT
$14,300At the bench 4 to 6 weeks
READY NOW
The Elongated cushion Solitaire
LAB DIAMOND · ELONGATED CUSHION · PT 950 · 3.01 CT
$5,780Leaves the studio in 2 days
READY NOW
The Radiant Solitaire
LAB DIAMOND · RADIANT · PT 950 · 2.50 CT
$4,220Leaves the studio in 2 days
The Pear Solitaire
NATURAL DIAMOND · PEAR · PT 950 · 1.40 CT
$9,480At the bench 4 to 6 weeks
The Cushion Solitaire
NATURAL DIAMOND · CUSHION · PT 950 · 1.62 CT
$7,640At the bench 4 to 6 weeks
The Antique Solitaire
NATURAL DIAMOND · ANTIQUE · PT 950 · 1.34 CT
$8,260At the bench 4 to 6 weeks
The Princess Solitaire
NATURAL DIAMOND · PRINCESS · PT 950 · 1.08 CT
$5,320At the bench 4 to 6 weeks
READY NOW
The Asscher Solitaire
LAB DIAMOND · ASSCHER · PT 950 · 1.75 CT
$3,140Leaves the studio in 2 days
The Heart Solitaire
NATURAL DIAMOND · HEART · PT 950 · 1.12 CT
$6,180At the bench 4 to 6 weeks
The Traced Solitaire
NATURAL DIAMOND · ROUND · PT 950 · 1.20 CT · LEDGER TRACED
$9,200At the bench 4 to 6 weeks
READY NOW
Ready: Oval Solitaire, 1.21 ct
NATURAL DIAMOND · OVAL · PT 950 · SIZE 6 · SHIPS IN 2 DAYS
$10,120Leaves the studio in 2 days
Every stone passported✦Worn in 44 states✦Lifetime resetting✦Every stone passported✦Worn in 44 states✦Lifetime resetting✦
You have seen all 15 WORKS here.
Before you choose
How to choose a ring
Start with the hand, not the stone
Long fingers carry tall settings; working hands want a bezel or a low prong. If you wear gloves or type all day, height is the first decision, not the last.
Pick the stone for the life it will live
A ring worn daily needs 8 or harder on the Mohs scale: sapphire, spinel, diamond. Softer stones like opal and emerald are occasion stones, or need protective settings.
Size in the afternoon
Fingers run a half size larger by evening and in summer. We size to your afternoon measurement and resize free within two sizes.
Buy the cut, not the carat
A well-cut smaller stone reads larger and livelier than a lazy big one. This is where our money goes, and where yours should.
The short answer
Treated black diamond solitaire rings at Made With Color: 15 one of a kind works from $3,140 to $14,300, each built around a stone chosen loose, in daylight, in New York. Diamond made opaque black by treatment. We say treated, not enhanced. Every stone ships with a passport naming origin, carat, cut, and any treatment in plain words. One stone, held up where it can be examined and believed. The most honest setting there is.
About treated black diamond
Diamond made opaque black by treatment. We say treated, not enhanced. We choose every stone loose, in daylight, and every work above carries a passport that says exactly what it is.
CHOOSING THE STYLE
On the style
Prong count is the taste decision: four shows more stone, six holds it safer.
Start with hardness
Treated black diamond is 10 / 10 on the Mohs scale. Hard enough for daily wear in any setting, including rings.
Fit before beauty
Measure a ring you already own at the end of the day, when fingers run largest.
Then the look
Decide setting height first. Hands that type, garden, or lift want the stone low.
PRICES ON THIS PAGE
Entry$3,140The quietest work on the page today
Typical$7,120Where most of these works land
Top of page$14,300The largest or rarest stone here now
Prices are per work, as of 16 Aug 2026, and move with the stone, never with a formula. Each piece is one of a kind.
Why choose a solitaire over a halo?
A solitaire bets everything on the stone and wins if the stone deserves it. A halo spreads the light wider. If the stone was chosen well, the solitaire is the braver and better buy.
Is treated black diamond good for rings?
Treated black diamond is 10 / 10 on the Mohs scale. A ring takes more knocks than any other jewel. Below 8 on the Mohs scale, choose a bezel or a low setting.
Which birthstone is treated black diamond?
Treated black diamond is the Apr birthstone and the traditional stone of the 60th anniversary. We set it for both, and for no occasion at all.
Are these stones treated?
Untreated unless the passport says otherwise. When a stone of ours is heated or grown in a lab, the passport says so in that word, in the same type size as everything else, and the price reflects it.
How do these wear?
High solitaires catch on knits and gloves. Hands that work want the low version; the stone loses nothing.
How much do treated black diamond solitaire rings cost?
Today, $3,140 to $14,300 across 15 works, most near $7,120. Each is one of a kind, so the page moves as stones sell and new ones are set.
◆Stones chosen loose, in daylight, one at a time
◆A passport with every stone, treatment named plainly
◆One artist, one bench, in New York
◆Lifetime resetting and free ring resizing
Current works & prices
The Oval SolitaireFrom $4,200
The Oval Solitaire$8,940
The Round Solitaire$7,120
The Marquise Solitaire$6,480
PRICES AS OF 16 AUG 2026Kept for life
◆Cleaning and polishing◆Prongs tightened and retipped◆White gold re-plated◆Resizing◆Resetting into something newThe whole catalog
Every page below is real: filtered from the works in the studio today, or an open invitation to commission the piece that is missing.
BY STONE
BY STYLE
BY SHAPE
BY METAL
GIFTS BY ZODIAC
BY INITIAL
BY ANNIVERSARY YEAR
Client notes, unedited
“They talked me out of a bigger stone and into a better one. Who does that?”M. CHEN, SEATTLE · COMMISSION No. 114
As written about inPress NamePress NamePress NamePress Name