Your Legacy

Sign in

One door for every client of the House. New here? The same door opens your account.

I already have an account

Continue with Facebook

or continue with email

Email address

We'll send a private 6-digit code — no password to remember.

New to the House

Build your Legacy

Open your MyLegacy account and make every acquisition part of your legacy — your certificates, your saved pieces, and your advisor, always at hand.

Inside your LEGACY

Your acquisitions, from the vault to your door
The certificates of your stones, always at hand
Your saved pieces, in step on every device
Private consultations with your advisor
Your seat in the Negotiation Room

Icon Archive › Royalty (Modern) › King Bhumibol Adulyadej (Rama IX)

The Legacy Diamond Icon Archive

King Bhumibol Adulyadej (Rama IX)

Fancy Yellow Cushion Diamond 545.67ct — Thai monarch who received the giant brown-gold diamond for his Golden Jubilee

The originalThai monarch who received the giant brown-gold diamond for his Golden JubileeSee the documented piece →

King Bhumibol Adulyadej (Rama IX) is associated, in the documented record, with a Fancy Yellow Cushion Diamond of approximately 545.67 carats. Thai monarch who received the giant brown-gold diamond for his Golden Jubilee (1997).

Within the Legacy Diamond Icon Archive this entry sits alongside the great diamond stories — a reference point for the cut, the colour and the moment it marked. The full Legacy Story for this icon is being written; the verified specifications, provenance and sources below are confirmed today.

Get the look — shop similar at Legacy

Taken in the spirit of this Fancy Yellow Cushion Diamond — pieces from the Legacy vault, and a one-of-one commission.

Star Ruby and Diamond Brooch | Designed As a Bouquet Embellished with Marquise-shaped, Brilliant-cut and Baguette Diamon

$65,000.00

Sapphire, Pink Sapphire and Diamond Clip-brooch | of Geometric Design, Centering an Emerald-cut Pink Sapphire, Set Betwe

$35,800.00

Sapphire and Diamond Brooch | of Scroll Design, Set with a Cushion-shaped Sapphire, Decorated with Old European-, Brilli

$34,000.00

Bespoke

Commission a piece in this spirit

One-of-one — designed and sourced by the Legacy atelier, inspired by King Bhumibol Adulyadej (Rama IX).

Begin a commission →

Common questions

What diamond or jewel is associated with King Bhumibol Adulyadej (Rama IX)?

What cut and colour is King Bhumibol Adulyadej (Rama IX)'s diamond?

It is a Cushion cut, Fancy Yellow in colour.

What era and origin is it from?

It dates to 1997. Origin / association: Southeast Asia.

Can I acquire a diamond like King Bhumibol Adulyadej (Rama IX)'s?

Yes — Legacy Diamonds sources and commissions comparable diamonds privately, including one-of-one bespoke pieces in the same cut and colour. Begin privately with the Legacy atelier.

More from Royalty (Modern)

Empress Masako of JapanRoyalty (Modern) · Diamond · Contemporary (2000–present)Diamond — Japanese empress's primary diadem, a nineteenth-century imperial tiara Princess Maria Carolina of Bourbon-Two SiciliesRoyalty (Modern) · Diamond · Contemporary (2000–present)Diamond — Neapolitan dynastic princess given a diamond Bourbon-jasmine tiara for her 18th birthday Princess Hafizah Sururul of BruneiRoyalty (Modern) · Diamond · Contemporary (2000–present)Diamond — Wore a floral diamond tiara, later adding a ruby-and-diamond evening suite Crown Princess Marie-Chantal of GreeceRoyalty (Modern) · Diamond · Contemporary (2000–present)Diamond — Reintroduced the long-vanished Greek family diamond tiara in public Diana, Princess of WalesRoyalty (Modern) · Sapphire · Modern (1970–1999)Fancy Blue Oval Sapphire 12ct — Ceylon sapphire engagement ring in a cluster of fourteen diamonds Sheikha Mahra of DubaiRoyalty (Modern) · Diamond · Contemporary (2000–present)Diamond — Dubai princess wore diamond bridal jewelry including a diamond bracelet and rings at her…

In the spirit of the original

Superb Ruby and Diamond Brooch | Designed As a Bow Set with Cushion-shaped, Circular-cut and Rose Diamonds, Supporting a

$96,000.00

StoneDiamond

ShapeCushion

Carat (approx.)545.67 ct

ColorFancy Yellow

Era1997

RegionSoutheast Asia

Documented. This is an editorial reference compiled from public sources — a record of notable jewels in history, not a statement of endorsement or of any association with Legacy. Source: primary reference. Last verified July 2026.

Acquire a stone in this tradition

Our atelier sources privately. Tell us the cut, the colour and the moment — and we will bring you the stone.

Speak with the atelier

Sign in