The LEGACY GRAND DROPA private viewing · By invitation · Few are admittedEnter the room →

View Similar Pieces

Home Collection $500K-$1M
✦ Private offers welcome

Diamond Brooch | Cushion Brilliant-cut Diamond of 8.88 Carats, Marquise-cut Diamonds, Platinum and Gold

$850,000
In stock · one of a kind · ready to ship
Insured worldwide delivery via Brink's Global Services — shipping & delivery
Certification on request before purchase — returns policy
Reserve — $24,500 deposit
3-Day Exclusive Hold · Fully Refundable
Message on WhatsApp

At a glance

Shape

Cushion Cut, Marquise, Round Brilliant

Carat

8.88ct

Colour

On Request

Clarity

On Request

Metal

Gold Platinum

CertificateCertified · papers on request
Make a Private Offer
Shipping & Returns — ships worldwide, Brink's insured door-to-door, in discreet packaging.
Acquire With Confidence — authenticity guaranteed, certification on request, your private 3-day hold.
Legacy Diamonds & Gemstones ✓ The House · Seven decades
Message a Private-Client Advisor
ITEMS SIMILAR TOCushion Cut, Marquise, Round Brilliant diamond brooches
View all ›

An 8.88 carat cushion brilliant-cut diamond represents a genuinely rare centrepiece, the kind of stone that most collectors will encounter only occasionally across a lifetime of serious acquisition and study. This diamond brooch is built entirely around that stone, mounted in a combination of platinum and gold and surrounded by marquise-cut diamonds whose elongated points direct the eye outward from the substantial centre stone, a classic compositional approach that lets both cutting styles reinforce one another visually across the piece.

The 8.88 carat weight and the cushion brilliant cut of the centre diamond are confirmed directly from the piece's own documentation, as is the dual-metal construction in platinum and gold, along with the marquise cut of the surrounding accent diamonds throughout the mount. Individual clarity and colour grading for the centre stone remain on request pending further verification; a stone of this size warrants a formal gemological report rather than an estimate, and one is prepared for any serious enquiry received. The cushion brilliant cut combines the softened, rounded outline of a cushion shape with the faceting pattern of a brilliant cut, producing a stone that reads with both romantic warmth and genuine fire under direct light sources.

A centre stone of nearly nine carats places this brooch firmly in statement territory — worn as the sole ornament on a formal gown, the centrepiece of a black-tie evening, or as a considered addition to a collection built specifically around significant single stones of real consequence. Diamonds of this size with a well-executed cushion brilliant cut are increasingly difficult to source, since larger rough is disproportionately likely to carry inclusions that limit cutting options, making a clean stone at this weight a genuine rarity in the current market landscape. The mounting is built substantial, appropriate to the weight and presence of the centre stone it carries.

Stones approaching nine carats essentially never return to open circulation once a serious collector acquires them, which underscores the scarcity value embedded in a piece like this one for any future buyer. Every gemstone offered through Legacy undergoes rigorous internal review, and independent certification is arranged on request, particularly recommended for a stone of this significance. This brooch is recorded in the Legacy register as LD-BR-0084. Given the rarity of the centre stone, we recommend collectors move promptly once the full gemological report has been reviewed and discussed with our advisors. Serious enquiries are welcome to request that report or arrange a private viewing of the piece.

Specifications

  • Metal: Gold Platinum
  • Diamond / Gem weight: 8.88ct
  • Cut / Shape: Round Brilliant, Cushion Cut, Marquise
Carat Weight
8.88ct
Shape
Cushion Cut, Marquise, Round Brilliant
Color
On Request
Clarity
On Request
Metal
Gold Platinum
Certification
GIA / IGI / HRD on request
Treatment
None · Natural
Reference Number
LD-BR-0084

Brink's Global insured worldwide delivery — every Legacy acquisition ships door-to-door through Brink's secure network, fully insured, in discreet neutral packaging.

White-glove delivery — for qualifying pieces, our concierge arranges in-person delivery to your residence or private office.

3-day exclusive hold — your reservation holds the piece privately for 3 days, fully refundable.

Independently certified — to your choice of GIA, IGI or HRD on request; documents shared privately with verified acquirers.

Authentication guarantee — if any piece does not match its stated specifications, full money-back refund.

Care — a soak in warm water with mild soap restores light return; have the prongs inspected annually.

The Complete Story

In full — nothing hidden

Most listings hide the writing. We don't — this is the work, in full.

An 8.88 carat cushion brilliant-cut diamond represents a genuinely rare centrepiece, the kind of stone that most collectors will encounter only occasionally across a lifetime of serious acquisition and study. This diamond brooch is built entirely around that stone, mounted in a combination of platinum and gold and surrounded by marquise-cut diamonds whose elongated points direct the eye outward from the substantial centre stone, a classic compositional approach that lets both cutting styles reinforce one another visually across the piece.

The 8.88 carat weight and the cushion brilliant cut of the centre diamond are confirmed directly from the piece's own documentation, as is the dual-metal construction in platinum and gold, along with the marquise cut of the surrounding accent diamonds throughout the mount. Individual clarity and colour grading for the centre stone remain on request pending further verification; a stone of this size warrants a formal gemological report rather than an estimate, and one is prepared for any serious enquiry received. The cushion brilliant cut combines the softened, rounded outline of a cushion shape with the faceting pattern of a brilliant cut, producing a stone that reads with both romantic warmth and genuine fire under direct light sources.

A centre stone of nearly nine carats places this brooch firmly in statement territory — worn as the sole ornament on a formal gown, the centrepiece of a black-tie evening, or as a considered addition to a collection built specifically around significant single stones of real consequence. Diamonds of this size with a well-executed cushion brilliant cut are increasingly difficult to source, since larger rough is disproportionately likely to carry inclusions that limit cutting options, making a clean stone at this weight a genuine rarity in the current market landscape. The mounting is built substantial, appropriate to the weight and presence of the centre stone it carries.

Stones approaching nine carats essentially never return to open circulation once a serious collector acquires them, which underscores the scarcity value embedded in a piece like this one for any future buyer. Every gemstone offered through Legacy undergoes rigorous internal review, and independent certification is arranged on request, particularly recommended for a stone of this significance. This brooch is recorded in the Legacy register as LD-BR-0084. Given the rarity of the centre stone, we recommend collectors move promptly once the full gemological report has been reviewed and discussed with our advisors. Serious enquiries are welcome to request that report or arrange a private viewing of the piece.

Specifications

  • Metal: Gold Platinum
  • Diamond / Gem weight: 8.88ct
  • Cut / Shape: Round Brilliant, Cushion Cut, Marquise
MEET YOUR PRIVATE CLIENT ADVISOR

Penelope Ravensworth

Senior Tennis Bracelets Specialist
Recognized Legacy Source
GIA / IGI / HRD Verified
Brinks Insured Partner
Based in New York
Always available — by WhatsApp and email
YOUR ACQUISITION JOURNEY
  1. 1 EXPLORE Browse the collection
  2. 2 EXPRESS INTEREST Wishlist · Offer · Chat
  3. 3 PRIVATE GALLERY Your Private Viewing Room
  4. 4 RESERVE 3-day exclusive hold
  5. 5 DELIVERED Brinks · White-glove
STILL LOOKING?

Get a private alert when new arrivals match Brooches. Sent only when our specialists source a piece worth your attention. No newsletter.

STILL EXPLORING?

Receive a private catalogue, curated for you

Enter your email to receive personally-selected pieces matching your interests — curated by your dedicated specialist, sent privately, never published. No newsletter, no marketing.

💬
Diamond Brooch | Cushion Brilliant-cut Diamond… $24,500
Reserve
Private Advisory
Still with the 8.88-carat brooch? Leave a number or email — an advisor will reach you personally, discreetly, within the hour.
In stock · one of a kind · ready to ship
Insured worldwide delivery via Brink's Global Services — shipping & delivery
Certification on request before purchase — returns policy

At a glance

Shape

Cushion Cut, Marquise, Round Brilliant

Carat

8.88ct

Colour

On Request

Clarity

On Request

Metal

Gold Platinum

CertificateCertified · papers on request

More Similar Items

View all ›

You May Also Like

View all ›

People Also Browsed

View all ›

More From The House

View all ›
FROM THE HOUSE

A sea of rare stones

A different selection each visit — keep scrolling, the collection runs deep.