Portuguese Diamond

A pair of Portuguese diamond cluster earrings, comprised of three tiered diamond clusters set with old cut and round brilliant cut diamonds, mounted in gold, with later Portuguese 80...

19th Century Portuguese Diamond Floral Ring in Silver and Gold, Lisbon Hallmarks and Maker’s Mark.

Antique yellow gold and silver ring with rose-cut diamonds. Portuguese, 18th or 19th century. Has been professionally cleaned and inspected and will be elegantly packaged for gifting.

Antique 19th century Portuguese diamond starburst bangle, set with approximately 2 carats of old mine-cut diamonds in 19.2K yellow gold.

Antique 19th century Portuguese diamond ring. This is a unique piece, with a lot of character and presence.

Antique Portuguese Diamond Ring, Renaissance styled. Band in Rose Gold, base of the crown in Yellow Gold.

Details Designer: Rosior Origin: Portugal Metal: Platinum Center Stones: 7 Princess-Cut Natural Diamonds Princess-Cut Diamond Weight: 1.44 Carats Accent Stones: 42 Brilliant-Cut Nat...

This Portuguese 19kt Yellow Gold Ring with Diamonds is a luxurious and elegant piece of jewelry.

Rosior Contemporary Drop Earrings set in White Gold with: - 2 Round Cut Diamonds, F Color, VVS Clarity, weighting 0,62 ct; - 42 Round Cut Diamonds, F Color, VVS Clarity, weighting 0,...

Stamped by the portuguese assay office as 19,2k gold. Stamped with Rosior hallmark.

This Contemporary Diamond White Gold Pendant Necklace captures timeless elegance through its refined drop-inspired design. Crafted in 19.2 kt white gold (800‰ purity), the pendant sh...

Mid-Century Diamond Rectangular Cufflinks in 19.2K White Gold, Portuguese, 1950s–1960s A refined expression of post-war modernism, these Portuguese cufflinks pair a stark architectu...

Handmade in Portugal. Stamped by the portuguese assay office as 950 Platinum.

Mid-Century Diamond Naturalistic Leaf and Berries Brooch in 19.2k White Gold, Portuguese, circa 1950s–1960s.

White Gold Earrings, made by Rosior, set with 74 Diamonds (G-VVS) weighing 2,73 ct. Some pear drop pieces are articulated to create movement.

Mid-Century Emerald and Diamond Articulated Chandelier Cocktail Earrings in Platinum and 19.2K White Gold, by master goldsmith Augusto Sequeira Calisto, Portugal, 1960s.

19.2kt – 800‰ rose gold ring made site ebonite set with cut diamond around 1.50ct surrounded by 18 diamonds. Not adjustable.

Vintage Cultured Pearl and Diamond Odeonesque Earrings in 19.2K White Gold, Portuguese, Late 20th Century.

Rosior Cocktail Ring set in 950 Platinum with 67 G Color, VVS Clarity Diamonds weighing 0,56 ct and 8 Black Diamonds weighing 0,25 ct.

Vintage Diamond Neckligée Necklace in 19.2K Yellow Gold, Portuguese, 20th Century.

Stamped by the portuguese assay office as 19.2K gold. Stamped with Rosior hallmark.

Rare Antique Late 18th Century Portuguese Sequilé Drop Earrings, Yellow Gold with Rose-Cut Diamonds.

Rosior Classic Pearl and Diamond Ring set in Platinum with: - 1 irregular South Sea pearl; - 79 Round Cut Diamonds (G-VVS) with 0,63 ct.

Handmade in Portugal. Stamped by the portuguese assay office as 19.2K Gold.

Art Deco Emerald and Diamond Engagement Ring in Platinum, by Portuguese goldsmith Carlos Joaquim Xavier, 1940s/1950s.

Portuguese Modernist Diamond Drop Necklace in 19.2kt White Gold, Late 20th Century.

Diamond Line Bracelet in 19.2kt White Gold, Portugal.

Rosior Contemporary Ring set in White Gold with 17 Brilliant Cut F-VVS Diamonds weighing 0,14 ct. Unique piece. Stamped by the portuguese assay office as 19.2k Gold.

Antique 19th Century En Tremblant Diamond Floral Bouquet Brooch in Silver and Gold, Portugal.

Ruby and Diamond Bombe Cocktail Ring in Platinum, Portugal, Late 20th Century.

A stunning 19.2kt – 800‰ white gold ring set featuring 7 brilliant-cut diamonds with a total aproximate weight around 2ct, boasting excepcional crafstmanship and timeless elegante.

Mid-Century Pearl and Diamond Cocktail Ring in Platinum, Portuguese, 1950s-1960s.

Antique Portuguese Renaissance styled Ring decorated with 21 natural Diamonds.

The mounting emphasizes simplicity and lightness, drawing full attention to the diamond’s natural sparkle and shape. Maker: Veado (Portugal), 1985–2020 Materials: 800/1000 white gol...

Mid-Century Emerald and Diamond Three-Stone Ring in Platinum, Portuguese, circa 1950s–1960s.

Portuguese Mid-Century emerald and diamond floral cluster bracelet in 19.2kt white gold, 1950s-1960s.

Vintage Sapphire and Diamond Half-Hoop Earrings in 19.2K White Gold, Portuguese, circa 1990s.

19.2kt – 800‰ white gold star-shaped brooch, set with pavé diamonds in brilliant-cut.

Stamped by the portuguese assay office as 19.2K gold. Stamped with Rosior hallmark.

Museum-quality 18th century rose-cut diamond ‘princess style’ pendeloque pendant earrings in rose gold, Portugal.

Antique Old European Brilliant-Cut Diamond and Navy-Blue Enamel Fringe Drop Earrings – Portuguese, Late 19th Century, fitted in original presentation case.

Vintage Diamond and Emerald Bird Brooch in 19.2kt Tricolor Gold, Mid-20th Century, Portugal.

Leitão & Irmão Art Deco Emerald and Diamond Earrings in Platinum and White Gold, Lisbon, c. 1940s.

An important late 17th to early 18th century diamond “laça” pendant-brooch, Portuguese, in 19.2kt yellow gold, set throughout with rose-cut and lasque diamonds in closed-back collet ...

A Mid-Century Aquamarine and Diamond Cocktail Cluster Ring in White Gold, Portugal, c. 1952-1975.

Museum-quality antique late 17th/early 18th century diamond and yellow gold Baroque “sequilé” earrings and pendant/brooch demi-parure, Portuguese, with hallmarks from the period and ...

Vintage Sapphire and Diamond Pear-Shape Cluster Ring in 19.2kt White Gold, Portuguese, circa 1990s.

Antique Late 18th / 19th Century rose-cut diamond devant de corsage or stomacher in closed-back silver, Portugal.

Crafted in bright buttery Portuguese 19k gold, the ring features a cluster of rich red rubies to the center with accenting diamonds.

Art Deco Ruby and Diamond Ropework Plaque Link Bracelet, Portuguese, circa 1930s–1940s.

Vintage Tricolor Gold and Diamond Trio of Bangles, Portuguese, Late 20th Century.

The base of the ring is stamped with the Portuguese Deer head and .800 fineness mark for 19.2k gold.

Antique POR BEM Diamond, Natural Pearl and Blue Enamel Shield-Shape Brooch in Platinum and 19.2K Yellow Gold, Portuguese, Late 19th Century—Early 20th Century.

Contemporary Toi-et-Moi Blue Topaz and Diamond Cocktail Ring in 19.2kt White Gold, Portuguese.

Spectacular Mid-Century Old European brilliant-cut and rose-cut floral brooch in 19.2kt white gold, Portuguese, 1950s/1960s. Modelled as an elegant flower with meticulously arranged ...

Art Deco Diamond Buckle Link Bracelet in Silver and Gold, Portugal, 1940s.

Talk to me Harry Winston, tell me all about it!" 4. Famous Diamonds & Masterpieces BS&F has handled some of the world's most legendary gemstones, including: The Portuguese Diamond: A...