Home Lab-Grown Diamond Letter Jewelry

Lab-Grown Diamond Letter Jewelry

Fine jewelry in solid gold and platinum, made to order in our Los Angeles atelier.

Women's Pavé Border lab-grown diamond letter signet ring in Platinum, letter M, worn on hand
Women's Pavé Border Lab-Grown Diamond Letter Signet Ring in Platinum
Pavé Border Lab-Grown Diamond Letter Signet Ring · Platinum
From $4,625.00
Men's Split Shank lab-grown diamond letter signet ring in 14K Yellow Gold, letter A, worn on hand
Men's Split Shank Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Split Shank Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Men's Oval lab-grown diamond letter signet ring in Platinum, letter D, worn on hand
Men's Oval Lab-Grown Diamond Letter Signet Ring in Platinum
Oval Lab-Grown Diamond Letter Signet Ring · Platinum
From $7,045.00
Women's Minimalist Bar lab-grown diamond letter signet ring in Platinum, letter S, worn on hand
Women's Minimalist Bar Lab-Grown Diamond Letter Signet Ring in Platinum
Minimalist Bar Lab-Grown Diamond Letter Signet Ring · Platinum
From $4,625.00
Men's Minimalist Bar lab-grown diamond letter signet ring in 14K Yellow Gold, letter E, worn on hand
Men's Minimalist Bar Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Minimalist Bar Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Men's Minimalist Bar lab-grown diamond letter signet ring in 14K White Gold, letter A, worn on hand
Men's Minimalist Bar Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Minimalist Bar Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $5,615.00
Women's Pavé Border lab-grown diamond letter signet ring in 14K White Gold, letter J, worn on hand
Women's Pavé Border Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Pavé Border Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,745.00
Women's Pavé Border lab-grown diamond letter signet ring in 14K Yellow Gold, letter S, worn on hand
Women's Pavé Border Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Pavé Border Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,745.00
Women's Oval lab-grown diamond letter signet ring in 14K Rose Gold, letter S, worn on hand
Women's Oval Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Oval Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $3,745.00
Men's Minimalist Bar lab-grown diamond letter signet ring in 14K Rose Gold, letter A, worn on hand
Men's Minimalist Bar Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Minimalist Bar Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $5,615.00
Men's Minimalist Bar lab-grown diamond letter signet ring in Platinum, letter C, worn on hand
Men's Minimalist Bar Lab-Grown Diamond Letter Signet Ring in Platinum
Minimalist Bar Lab-Grown Diamond Letter Signet Ring · Platinum
From $7,045.00
Men's Oval lab-grown diamond letter signet ring in 14K Yellow Gold, letter J, worn on hand
Men's Oval Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Oval Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Women's Oval lab-grown diamond letter signet ring in 14K Yellow Gold, letter D, worn on hand
Women's Oval Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Oval Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,745.00
Women's Oval lab-grown diamond letter signet ring in 14K White Gold, letter S, worn on hand
Women's Oval Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Oval Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,745.00
Women's Minimalist Bar lab-grown diamond letter signet ring in 14K Yellow Gold, letter C, worn on hand
Women's Minimalist Bar Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Minimalist Bar Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,745.00
Women's Minimalist Bar lab-grown diamond letter signet ring in 14K White Gold, letter R, worn on hand
Women's Minimalist Bar Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Minimalist Bar Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,745.00
Men's Hexagon lab-grown diamond letter signet ring in 14K Rose Gold, letter C, worn on hand
Men's Hexagon Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Hexagon Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $5,615.00
Men's Hexagon lab-grown diamond letter signet ring in Platinum, worn on hand
Men's Hexagon Lab-Grown Diamond Letter Signet Ring in Platinum
Hexagon Lab-Grown Diamond Letter Signet Ring · Platinum
From $7,045.00
Men's Hexagon lab-grown diamond letter signet ring in 14K Yellow Gold, letter J, worn on hand
Men's Hexagon Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Hexagon Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Women's Hexagon lab-grown diamond letter signet ring in Platinum, letter A, worn on hand
Women's Hexagon Lab-Grown Diamond Letter Signet Ring in Platinum
Hexagon Lab-Grown Diamond Letter Signet Ring · Platinum
From $4,625.00
Men's Cushion lab-grown diamond letter signet ring in 14K Rose Gold, letter A, worn on hand
Men's Cushion Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Cushion Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $5,615.00
Women's Hexagon lab-grown diamond letter signet ring in 14K Rose Gold, letter S, worn on hand
Women's Hexagon Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Hexagon Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $3,745.00
Men's Hexagon lab-grown diamond letter signet ring in 14K White Gold, letter C, worn on hand
Men's Hexagon Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Hexagon Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $5,615.00
Women's Diamond Frame lab-grown diamond letter signet ring in 14K Yellow Gold, letter J, worn on hand
Women's Diamond Frame Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Diamond Frame Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,745.00
Women's Hexagon lab-grown diamond letter signet ring in 14K White Gold, letter S, worn on hand
Women's Hexagon Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Hexagon Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,745.00
Men's Diamond Frame lab-grown diamond letter signet ring in 14K White Gold, letter E, worn on hand
Men's Diamond Frame Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Diamond Frame Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $5,615.00
Women's Diamond Frame lab-grown diamond letter signet ring in Platinum, letter D, worn on hand
Women's Diamond Frame Lab-Grown Diamond Letter Signet Ring in Platinum
Diamond Frame Lab-Grown Diamond Letter Signet Ring · Platinum
From $4,625.00
Women's Hexagon lab-grown diamond letter signet ring in 14K Yellow Gold, letter D, worn on hand
Women's Hexagon Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Hexagon Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,745.00
Women's Classic Square lab-grown diamond letter signet ring in 14K Rose Gold, letter M, worn on hand
Women's Classic Square Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Classic Square Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $3,745.00
Men's Diamond Frame lab-grown diamond letter signet ring in 14K Rose Gold, letter E, worn on hand
Men's Diamond Frame Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Diamond Frame Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $5,615.00
Women's Classic Square lab-grown diamond letter signet ring in 14K Yellow Gold, letter A, worn on hand
Women's Classic Square Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Classic Square Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,745.00
Men's Diamond Frame lab-grown diamond letter signet ring in 14K Yellow Gold, letter R, worn on hand
Men's Diamond Frame Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Diamond Frame Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Men's Classic Square lab-grown diamond letter signet ring in 14K White Gold, letter S, worn on hand
Men's Classic Square Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Classic Square Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $5,615.00
Women's Diamond Frame lab-grown diamond letter signet ring in 14K Rose Gold, letter C, worn on hand
Women's Diamond Frame Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Diamond Frame Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $3,745.00
Women's Diamond Frame lab-grown diamond letter signet ring in 14K White Gold, letter C, worn on hand
Women's Diamond Frame Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Diamond Frame Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,740.00
Women's Cushion lab-grown diamond letter signet ring in Platinum, letter S, worn on hand
Women's Cushion Lab-Grown Diamond Letter Signet Ring in Platinum
Cushion Lab-Grown Diamond Letter Signet Ring · Platinum
From $4,620.00
Men's Cushion lab-grown diamond letter signet ring in Platinum, letter C, worn on hand
Men's Cushion Lab-Grown Diamond Letter Signet Ring in Platinum
Cushion Lab-Grown Diamond Letter Signet Ring · Platinum
From $7,040.00
Women's Cushion lab-grown diamond letter signet ring in 14K Rose Gold, letter R, worn on hand
Women's Cushion Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Cushion Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $3,740.00
Women's Art Deco lab-grown diamond letter signet ring in Platinum, letter M, worn on hand
Women's Art Deco Lab-Grown Diamond Letter Signet Ring in Platinum
Art Deco Lab-Grown Diamond Letter Signet Ring · Platinum
From $4,620.00
Men's Cushion lab-grown diamond letter signet ring in 14K White Gold, letter A, worn on hand
Men's Cushion Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Cushion Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $5,610.00
Women's Cushion lab-grown diamond letter signet ring in 14K White Gold, letter R, worn on hand
Women's Cushion Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Cushion Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,740.00
Women's Classic Square lab-grown diamond letter signet ring in 14K White Gold, letter M, worn on hand
Women's Classic Square Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Classic Square Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,740.00
Women's Cushion lab-grown diamond letter signet ring in 14K Yellow Gold, letter C, worn on hand
Women's Cushion Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Cushion Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,740.00
Women's Art Deco lab-grown diamond letter signet ring in 14K White Gold, letter J, worn on hand
Women's Art Deco Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Art Deco Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $3,740.00
Men's Art Deco lab-grown diamond letter signet ring in 14K White Gold, letter R, worn on hand
Men's Art Deco Lab-Grown Diamond Letter Signet Ring in 14K White Gold
Art Deco Lab-Grown Diamond Letter Signet Ring · 14K White Gold
From $5,615.00
Women's Art Deco lab-grown diamond letter signet ring in 14K Rose Gold, letter J, worn on hand
Women's Art Deco Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Art Deco Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $3,745.00
Men's Cushion lab-grown diamond letter signet ring in 14K Yellow Gold, letter E, worn on hand
Men's Cushion Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Cushion Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Men's Classic Square lab-grown diamond letter signet ring in Platinum, letter A, worn on hand
Men's Classic Square Lab-Grown Diamond Letter Signet Ring in Platinum
Classic Square Lab-Grown Diamond Letter Signet Ring · Platinum
From $7,045.00
Men's Art Deco lab-grown diamond letter signet ring in 14K Rose Gold, letter R, worn on hand
Men's Art Deco Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Art Deco Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $5,615.00
Men's Classic Square lab-grown diamond letter signet ring in 14K Yellow Gold, letter D, worn on hand
Men's Classic Square Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Classic Square Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Men's Art Deco lab-grown diamond letter signet ring in 14K Yellow Gold, letter C, worn on hand
Men's Art Deco Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Art Deco Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $5,615.00
Women's Classic Square lab-grown diamond letter signet ring in Platinum, letter R, worn on hand
Women's Classic Square Lab-Grown Diamond Letter Signet Ring in Platinum
Classic Square Lab-Grown Diamond Letter Signet Ring · Platinum
From $4,625.00
Men's Classic Square lab-grown diamond letter signet ring in 14K Rose Gold, letter S, worn on hand
Men's Classic Square Lab-Grown Diamond Letter Signet Ring in 14K Rose Gold
Classic Square Lab-Grown Diamond Letter Signet Ring · 14K Rose Gold
From $5,615.00
Men's Art Deco lab-grown diamond letter signet ring in Platinum, letter S, worn on hand
Men's Art Deco Lab-Grown Diamond Letter Signet Ring in Platinum
Art Deco Lab-Grown Diamond Letter Signet Ring · Platinum
From $7,045.00
Women's Art Deco lab-grown diamond letter signet ring in 14K Yellow Gold, letter S, worn on hand
Women's Art Deco Lab-Grown Diamond Letter Signet Ring in 14K Yellow Gold
Art Deco Lab-Grown Diamond Letter Signet Ring · 14K Yellow Gold
From $3,745.00
Made Entirely to Order · Every Time Natural Accent Diamonds Solid Gold & Platinum Only 40 Day Returns GIA & IGI CertifiedMade Entirely to Order · Every Time Natural Accent Diamonds Solid Gold & Platinum Only 40 Day Returns GIA & IGI Certified
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Fine Jewelry Made to Order in Los Angeles

Every RockHer piece is made to order in our Los Angeles atelier and offered at one fair price. Our gemology team inspects every piece before it ships, and every order carries a 40 day return window and a lifetime warranty.

Talk to a Jeweler

Not sure where to begin?

One conversation with a gemologist replaces a hundred open tabs. We will guide you the way we would guide a close friend.

John Anderson · Lead Gemologist · 1‑800‑779‑1726

Book a Consultation

The Initial, Reimagined in a Single Lab-Grown Diamond

An initial is the oldest personalization in fine jewelry, a mark of identity worn on the hand, at the throat, or close to the heart. At RockHer, we render that mark in a single lab-grown diamond. Not a pavé field. Not a cluster. One stone, cut and faceted into the precise form of the letter you choose, then set into a piece designed to carry it. Every diamond letter object we make begins with a single rough lab-grown gem and ends as a commissioned work, custom-cut for one customer and one letter.


DEF Color. VVS, VS Clarity. Graded by RockHer Gemologists.

Every lab-grown diamond in this collection is hand-selected and graded in-house by our gemologists to the RockHer standard: DEF color, VVS, VS clarity. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds, the same material, graded to the same 4Cs standard, cut by the same specialists. The only difference is origin.


The Diamond Letter, Across the Collection

The lab-grown diamond letter appears first and most fully in our signet ring collection, twelve mounting silhouettes across four metals, scaled in a Signature proportion for women (0.50 to 0.75 ct) and a Grand proportion for men (1.00 to 1.50 ct). As the atelier expands, the diamond letter will appear in additional forms.

  • Signet Rings: The flagship application, twelve architectural mountings, all metals, all initials.
  • Additional Diamond Letter Jewelry: As this collection grows, further diamond letter objects may join it, always built on the same one-diamond philosophy, never on pavé or cluster set stones.

The Craft

A custom letter cut is not a stock shape. Each rough lab-grown diamond is evaluated for its internal structure, then cut by a specialist to produce a finished stone that reads as a complete letter from every viewing angle. The finished gem is then bezel- or flush-set into a solid metal mounting, cast in 14K yellow gold, white gold, rose gold, or platinum, hand-finished in our Los Angeles studio.


Frequently Asked Questions

What does "lab-grown diamond letter" mean at RockHer?
It means the letter is cut from a single lab-grown diamond. The initial you choose is rendered as one continuous, faceted gemstone shaped like that specific letter, not as multiple small diamonds arranged in the outline of the letter. Every stone is graded in-house by RockHer gemologists to DEF color, VVS, VS clarity.
Are lab-grown diamonds real diamonds?
Yes. Lab-grown diamonds are physically, chemically, and optically identical to mined diamonds. They are pure crystallized carbon, rank 10 on the Mohs scale, and are graded by the same 4Cs standard. Specialized equipment is required to distinguish lab-grown from mined origin.
Is this the same as a pavé initial ring or necklace?
No. A pavé initial piece uses many small round diamonds set into metal in the shape of a letter. A RockHer diamond letter piece uses one single lab-grown diamond cut into the letter itself. The visual difference is immediate, a single continuous gem versus a field of small stones.
What products are in the collection today?
The collection launches with our lab-grown diamond letter signet ring line, twelve mounting silhouettes offered in 14K yellow gold, white gold, rose gold, and platinum, in both women's Signature and men's Grand proportions. Additional diamond letter jewelry will be added as the atelier expands the line.
Can I commission a lab-grown diamond letter in a piece that isn't listed yet?
Yes. The atelier accepts commissioned work for diamond letter pendants, necklaces, and earrings on a custom basis. Contact our team to discuss specifications, we will confirm diamond sourcing, carat range, and lead time before quoting the piece.
What is RockHer's return policy?
Because each lab-grown diamond is custom-cut to the specific letter you select, all diamond letter jewelry is made to order and follows our custom-order policy. Please review our full return policy at /pages/return-policy before placing your order. For rings, one complimentary resize is included within ninety days of delivery.