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GIA Certified 0.86 Carat Brazilian Alexandrite & Diamond Platinum Drop Necklace
ASSAY
$116,250.00
GIA Certified 0.86 Carat Brazilian Alexandrite & Diamond Platinum Drop Necklace
Est. Delivery Between: and
View this piece in person at Gad & Co, Hong Kong
Family jewelers since 1983
Walk-ins welcome - booking just ensures this piece is in the store when you visit.
Zhongcai Centre, 131 Queen's Road Central, Central, Hong Kong
GIA-certified 0.86 carat oval cut natural untreated Brazilian alexandrite and 0.23 carat tapered baguette diamond solitaire drop pendant in platinum 900, featuring a transparent color-change alexandrite graded bluish green to purple by GIA in a four-prong setting below a tapered baguette diamond accent, suspended on a platinum 850 ball chain.
Total weight 3.63 grams; GIA Report No. 6541806807; chain included.
Product Specifications:
- Item Type: GIA Certified Solitaire Drop Pendant Necklace
- Metal: Platinum 900 (pendant) and Platinum 850 (ball chain)
- Total Weight: 3.63 grams
- Chain Style: Platinum 850 ball chain
- Certification: GIA Alexandrite Origin Report No. 6541806807
Center Stone Details:
- Species: Natural Chrysoberyl
- Variety: Natural Alexandrite
- GIA Report No.: 6541806807
- Carat: 0.86 carats
- Shape: Oval
- Measurements: 7.23 x 5.02 x 3.05mm
- Color: Bluish Green changing to Purple
- Transparency: Transparent
- Cutting Style Crown: Brilliant Cut
- Cutting Style Pavilion: Step Cut
- Geographic Origin: Brazil
- Treatment: Untreated (no heat, natural)
- Setting: Four-prong platinum
- Mohs Hardness: 8.5
- Birthstone: June
Accent Stone Details:
- Type: Natural Diamond
- Carat: 0.23 carats
- Cut: Tapered Baguette
- Setting: Channel set between split bail above center stone
About the Setting:
The pendant is constructed in platinum 900 as a clean, minimalist vertical solitaire — the GIA-certified oval alexandrite sits in a four-prong basket at the base, connected by a slim platinum stem to a tapered baguette diamond accent positioned between the split bail above. The split bail allows the platinum 850 ball chain to pass through freely, keeping the pendant centered and face-forward on the décolletage at all times. The overall design is intentionally restrained — a platinum frame that recedes completely so the color-change phenomenon of the alexandrite center stone becomes the sole focus of the piece in every lighting condition.
About the Stone:
This GIA-certified 0.86 carat oval alexandrite — GIA Report No. 6541806807 — is graded bluish green changing to purple, with transparent clarity and a brilliant crown over step-cut pavilion that optimizes both color saturation and light return simultaneously. GIA's geographic origin determination confirms Brazilian provenance, and the untreated status places this stone among the rarest category of alexandrites available — natural, unheated, with a fully documented color change from bluish green in daylight to purple under incandescent light verified by one of the world's most respected gemological laboratories. Brazilian alexandrite measuring 7.23 x 5.02 x 3.05mm at 0.86 carats with this quality of color change and GIA certification represents a genuinely collector-grade stone — alexandrite with strong, clean color change of this size, from a documented source, with independent laboratory certification is among the most sought-after colored gemstone categories in the fine jewelry market globally.
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USA: 2-5 business days (USPS/FedEx)
Canada: 4-8 business days
Australia: 5-10 business days
Europe: 4-8 business days
Other countries: 6-10 business days
Our layaway plan is 100% free and you don't have to apply or qualify for it. We simply require a 10% down payment then you will have 1-6 months to pay the remainder of the balance. Weekly, bi-weekly or monthly installment payments are available. You can pick and choose your own payment plan to find an option that works for you. Your order will be shipped to you as soon as it is paid in full. More Details Here.
We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.
Non-Returnable Items: Certain items are ineligible for return, including:
- Resized or personalized items (e.g., engraved pieces).
- Pieces that are Custom-Made or Made To Order.
- Items purchased using an installment plan.
More Details Here
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Speak to an Expert
Consult directly with our on-staff GIA Graduate Gemologist and Watchmaker. Founded by an owner in the trade since 1983.
Speak to an Expert
Consult directly with our on-staff GIA Graduate Gemologist and Watchmaker. With an owner in the trade since 1983, expert guidance is always available.
Certificate of Appraisal
Every piece includes a certificate of appraisal, confirming authenticity, documenting value, and accepted by insurance.
Certificate of Appraisal
Every piece includes a certificate of appraisal confirming authenticity, documenting value, and providing trusted documentation accepted by insurance companies.
BBB, JBT & Diamond Dealers Club
BBB Accredited · JBT · Diamond Dealers Club · Rapaport
BBB, JBT & Diamond Dealers Club
We are proud members of the BBB, JBT, and Diamond Dealers Club, reflecting our commitment to professionalism, trust, and integrity in the jewelry industry.
Four Locations
Visit us in Key West, Downtown Miami, New York, or Hong Kong.
Four Locations
Visit us in person at any of our four locations in Key West, Downtown Miami, New York, or Hong Kong for personalized service.
Fast Shipping
Most in-stock pieces ship within 24–48 hours, with FedEx overnight delivery (orders $500+). Contact us for expedited shipping.
Fast Shipping
Most in-stock pieces ship within 24–48 hours, with FedEx overnight delivery available on orders $500+. Contact us for expedited shipping options.
Real People, Real Answers
Text, call, or email our team directly, before or after your purchase.
Real People, Real Answers
Connect directly with our knowledgeable team by text, phone, or email. We’re here to answer your questions before or after your purchase.
Insured & Gift-Ready
Every purchase is fully insured for its entire value and shipped with signature required.
Each order comes gift-ready upon request.
One of One
Most jewelry is made to be sold many times over. Ours isn't. We source rare vintage and estate watches you won't find in a display case anywhere else, and what we don't source, we make ourselves. Either way, the piece in front of you is singular, not pulled from a production run. When you buy from Assay, chances are no one else on earth owns its twin.
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