Skip to main content
Video Loading
Want more images or videos?
Request additional images or videos from the seller
1 of 7

GIA Certified 3.50 Carat Marquise Diamond Platinum Ring

About the Item

This magnificent diamond from Antinori di Sanpietro ROMA is a treasure beyond description... The 3.carat marquise cut diamond of D color and SI1 clarity is set in a handmade, platinum ring mounting with beautifully matched trillion diamonds. With no fluorescence, incredible scintillation, and an elegant outline, this stone is the essence of perfection! Purchase includes complimentary ring sizing, ring box, and original GIA grading report.

Custom Services

Resizing is available.

Shipping & Returns

  • Shipping
    Retrieving quote...
    Ships From: Chicago, IL
  • Return Policy

    A return for this item may be initiated within 3 days of delivery.

1stDibs Buyer Protection Guaranteed
If your item arrives not as described, we’ll work with you and the seller to make it right. Learn More
About the Seller
5.0
Located in Rome, Italy
Recognized Seller
These prestigious sellers are industry leaders and represent the highest echelon for item quality and design.
Gold Seller
These expertly vetted sellers are highly rated and consistently exceed customer expectations.
Established in 2012
1stDibs seller since 2020
294 sales on 1stDibs
Typical response time: 5 hours
More From This SellerView All
  • GIA Certified 3.50 Carat Marquise Diamond Solitaire Ring Golconda Type IIA
    By Antinori Fine Jewels
    Located in Rome, IT
    An exquisite 3.52 carat Type IIa diamond ring with an impressive lenght. Take a look at the video This diamonds are regularly knocking down auction...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    Diamond, White Diamond, Platinum

  • GIA Certified 3.50 Carat Solitaire Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    GIA Certified 3.50 Carat Triple Excellent
    Category

    2010s Italian Modern Engagement Rings

    Materials

    White Diamond, Diamond, Platinum

    GIA Certified 3.50 Carat Solitaire Ring
    $64,000 Sale Price
    26% Off
    Free Shipping
  • GIA Certified 3.50 Carat Emerald-Cut Diamond Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    An extraordinary GIA certified Engagement Ring with Emerald Diamond Cut. The main stone weights 3.00 Carat, graded h in color and Vs1 in Clarity. 100% Eye clean stone Excellent luste...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    White Diamond, Emerald, Diamond, Platinum

    GIA Certified 3.50 Carat Emerald-Cut Diamond Ring
    $72,808 Sale Price
    20% Off
    Free Shipping
  • GIA Certified 3.50 Carat Fancy Vivid Yellow Cushion Diamond Platinum Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    This Beautiful Classic engagement ring from Antinori Fine Jewels features an over 3.53 carat fancy vivid yellow radiant cut diamond wit...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    Diamond, Yellow Diamond, Platinum, 18k Gold, Yellow Gold

  • GIA Certified 3.50 Carat Asscher Cut Diamond Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    GIA Certified 3.50 Carat Asscher Cut Diamond
    Category

    2010s Italian Modern Solitaire Rings

    Materials

    Diamond, White Diamond, 18k Gold

    GIA Certified 3.50 Carat Asscher Cut Diamond Ring
    $68,000 Sale Price
    20% Off
    Free Shipping
  • GIA Certified 3.50 Carat Brilliant Cut Cushion Diamond Ring
    By Antinori Fine Jewels
    Located in Rome, IT
    An exquisite 3 carat cushion cut diamond that has been cut in a form with many facets, so it can have exceptional brilliance and maximized ...
    Category

    2010s Italian Modern Engagement Rings

    Materials

    Diamond, White Diamond, Platinum

You May Also Like
  • GIA 3.50 Carat Emerald Diamond Engagement ring in Platinum 950
    By FERRUCCI
    Located in New York, NY
    GIA Certified 3.50 carat Emerald step cut diamond, H color, VS2 clarity, Excellent specs, set in made to fit, Solitaire Platinum 950 engagement ring setting. Completely customizabl...
    Category

    2010s American Modern Solitaire Rings

    Materials

    Emerald, Diamond, White Diamond, Platinum

  • GIA Certified 3.50 Carat G VS2 Diamond Milgrain Gold Engagement Ring
    By Diamond Stars Jewelry, Inc.
    Located in New York, NY
    Stunning Large Diamond "Made to Impress" Engagement Ring The ring is 18K White Gold The setting has 1.34 Carats in Diamonds F/G VS/SI The setting has milgrain workmanship for that Ar...
    Category

    21st Century and Contemporary American Contemporary Engagement Rings

    Materials

    Diamond, White Diamond, Gold, 18k Gold, White Gold

  • GIA Certified 4.50 Carat Princess Cut Diamond Platinum Engagement Ring
    By Roman Malakov
    Located in New York, NY
    A timeless solitaire engagement ring style. Features a 4.50 carat princess cut diamond certified by GIA as F color, VS2 clarity, set in a classic four-prong mounting made in platinum...
    Category

    21st Century and Contemporary American Contemporary Engagement Rings

    Materials

    Diamond, Platinum

  • GIA Certified .76 Carat Diamond Platinum Engagement Ring
    Located in Atlanta, GA
    Item Details: Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.5 grams Center Diamond Details: GIA REPORT #:2211211078 Weight: .76 carat Cut: Old European Brill...
    Category

    Vintage 1920s Unknown Art Deco Engagement Rings

    Materials

    White Diamond, Platinum

  • Art Deco GIA Certified 0.50 Carat Diamond Sapphire Platinum Engagement Ring
    Located in Hong Kong, HK
    This ring features a GIA certified diamond at the center weight 0.50 carat, G color, VVS 2 clarity with excellent cutting. Center diamond is surrounded by 0.74 carat of natural sapph...
    Category

    21st Century and Contemporary Hong Kong Art Deco Engagement Rings

    Materials

    Diamond, Sapphire, Platinum

  • Art Deco GIA Certified 0.50 Carat Diamond Sapphire Platinum Engagement Ring
    Located in Hong Kong, HK
    This ring features a 0.50 carat round brilliant cut diamond at the center (Color: E, Clarity: Internally Flawless, Cut: Very Good). Assented with 0.98 carat of natural sapphires halo...
    Category

    21st Century and Contemporary Hong Kong Art Deco Engagement Rings

    Materials

    Diamond, Sapphire, Platinum

Recently Viewed

View More

The 1stDibs Promise

Learn More

Expertly Vetted Sellers

Confidence at Checkout

Price-Match Guarantee

Exceptional Support

Buyer Protection

Trusted Global Delivery