20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring
20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring

ASSAY

20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring

¥65,012,700 JPY

4% discount for bank wire, mailed check, or Zelle

SKU - GJ0237
6
Select a size
4
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
Size Not Listed

Ring Size Help

Make An Offer

Est. Delivery Between: and


A rare and striking investment grade 20.07 carat "Royal Blue" No Heat Burma Sapphire takes center stage in this elegant 18K white gold ring, flanked by 2 half moon cut diamond and accented by a round cut diamond hidden halo.

From the fabled depths of Burma.

This gemstone is a masterpiece. A unique mix of a Star Sapphire and a regular Sapphire. Most Star Sapphires need to be opaque in order to see the star effect, but this Gem bears mesmerizing star effects on the edges while still having incredible transparency, so you can see the galaxy of rich blue color that's deep inside the stone. Set with an open back setting and a vividly saturated blue hue that penetrates the entire gem with even distribution and excellent luster.

Details:

  • Item Type: Sapphire and Diamond Ring
  • Metal: 18K White Gold
  • Weight: 5.96 Grams
  • Ring Size: 6 (adjustable)

Sapphire Details:

  • Carat: 20.07
  • Cut: Double Cabochon
  • Color: Vivid Blue, GRS "Royal Blue"
  • Origin:  Burma
  • Treatment: None (No Heat)
  • Transparency: Transparent
  • Measurements: 16.33 x 12.24 x 10.64 MM

Certification: GRS Certified #1088725

Side Stones Details:

  • 2 Half Moon Cut Diamonds, 1.17 CTW (F-G/VVS1-VV2)
  • 38 Round Cut Diamonds, 0.16 CTW (F-G/VVS1-VV2)

MORE DETAILS



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

About The Sapphire

This exceptional 20-carat "Royal Blue" sapphire from the legendary mines of Burma is a collector's dream. Uniquely, it combines the qualities of a star sapphire and a traditional sapphire. Unlike typical star sapphires, which are opaque to reveal the star effect, this gem maintains remarkable transparency, allowing a clear view of the vibrant internal colors. The sapphire features subtle star effects along the edges and is set in 18k white gold, flanked by two half-moon cut diamonds, making it a standout piece for serious collectors

Make An Offer
List Price: ¥65,012,700 JPY

Choose Your Offer amount

¥ JPY
×

Speak to an Expert

Consult directly with our on-staff GIA Graduate Gemologist and Watchmaker. Founded by an owner in the trade since 1983.

Certificate of Appraisal

Every piece includes a certificate of appraisal, confirming authenticity, documenting value, and accepted by insurance.

BBB, JBT & Diamond Dealers Club

BBB Accredited · JBT · Diamond Dealers Club · Rapaport

Four Locations

Visit us in Key West, Downtown Miami, New York, or Hong Kong.

Fast Shipping

Most in-stock pieces ship within 24–48 hours, with FedEx overnight delivery (orders $500+). Contact us for expedited shipping.

Real People, Real Answers

Text, call, or email our team directly, before or after your purchase. 

Contact us to speak with our jewelry experts today

Questions

Call or Text: (305) 788-3019

Or email us: info@assayjewelers.com

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.

Featured on...

At Assay, we’re proud to be featured as top sellers across multiple marketplaces (1st Dibs, Chrono24, Etsy, Rubylane and more). No matter where you prefer to shop, you’ll find the same exceptional products and service available on every platform!

Verified & accredited


Credentials you can verify.