A rare and highly coveted gemstone. A 7.25 carat cushion cut ruby. GRS certified as vivid purplish red, unheated, and from Siam (Thailand). Set in 18k yellow gold and platinum with a round cut diamond halo. The ruby is slightly elongated, but set horizontally east to west to offer a distinctive and unique width on the finger One of the most impressive and important gemstones in our vault. Overall an investment grade gem. Specifications: Item Type: Cocktail Ring Metal: Platinum & 18K Yellow Gold Weight: 6.26 Grams Ring Size: 6 (adjustable) Center Stone: Type: Natural Ruby Carat: 7.25 Cut: Cushion Treatment: None, No Heat Color: Vivid Purplish Red Origin: Siam (Thailand) Measurements: 11.10 x 10.84 x 6.31 GRS Certified: 2016-108963 Side Diamonds: Total Diamond Count: 12 Total Carat Weight: Approx. 1.80 ctw Cut: Round Brilliant Clarity: VS1-VS2

Read more less

This natural 7.77 carat unheated Ceylon blue sapphire ring is a striking statement of elegance and rarity. It is both AGL Certified and SSEF certified as originating from Ceylon (Sri Lanka) and having no heat or clarity treatment of any kind. Set in 18k white gold with 2 shield cut diamond side stones of over 1 carat each and round cut diamonds on the shank and basket. Mounted in an open back 4 prong setting so the stone's natural color is on full display. This is a true investment piece for those with a sophisticated and refined understanding of high jewelry. Details: Item Type: Sapphire & Diamond Ring Metal: 18K White Gold Weight: 4.73 grams Ring Size: 7 Center Stone Details: Type: Natural Sapphire Carat: 7.77 Color: Deep Blue Cut: Cushion Transparency: Transparent Origin: Ceylon (Sri Lanka) Treatment: None Measurements: 11.91 x 10.24 x 7.19 MM Certification: AGL (#1092865) and SSEF (#101083) Side Stones Details: Type: Diamonds Cut: Shield Carat: 2 pcs, 2.20 ctw Color: E Clarity: VS1-SI1 Additional Accent Diamonds: Cut: Round Brilliant Color: White Clarity: VS1-VS2 Carat: 52 pcs, 0.50ctw This ring is unmistakably natural and noticeably valuable, featuring a rare unheated Ceylon sapphire with a deep blue hue, unmatched in quality. The D-F colorless diamonds enhance its brilliance, making this an extraordinary, one-of-a-kind heirloom piece that no one else will have.

Read more less

GRS Certified 6.45 carat unheated oval cut Ruby from Burma. Adorned with a diamond halo of 12 round cut white diamonds totaling 2.96 carats (0.25ct each). All set in a luxurious 18K white gold band with a floral basket mounting the center stone and an open back. Details: Item Type: Ruby and Diamond Cocktail Ring Metal: 18K White Gold Ring Size: 7 (adjustable) Weight: 7.14 grams Setting: Prong, Halo Center Stone Details: Type: Ruby Carat: 6.45 Color: Red Cut: Oval, Brilliant/Step (5) Origin: Burma Treatment: None (No Heat) Dimensions: 13.19 x 9.58 x 4.42 mm GRS Certified #2024-058361Side Stone Details: Total Diamonds: 12 Round Diamonds Carat Weight: 2.96 total for 12 stones (~0.25 ct each) Cut: Round Clarity: VS1-VS2 Color: F-G The center stone merits praise for it's superbly rich color and excellent material. While offering charming hints of pinkish red, it's undeniably a red ruby. The stone bears the ideal proportion and shape for an oval cut and the tone exhibits excellent transparency. Hailing from the legendary mines of Burma, more specifically the Mogok valley in Myanmar. It's certainly from the old mine deposits where the material is much finer and has more richness and depth when compared to the newer stones.The ring setting has a custom made deign where the diamond halo creates a concave around the diamonds, they point upwards to protect the center ruby and provide a slight shadow that gives the stone a darker hue indoors.

Read more less

AGL certified 10.35 carat no heat Ceylon oval cut pinkish purple sapphire and mixed cut diamond cluster platinum ring. The stone bears excellent luster, transparency, and color. It is rare to find a natural sapphire of this quality and size with such a richly saturated color and even color distribution, especially without having any heat treatment. It is a truly rare gem set in a ring that you will not find elsewhere. The bold cluster design offers full finger coverage and can be worn alone as a statement piece. It features 5.25 carats in 8 pear cut, 16 marquise cut, and 14 round cut natural white diamonds of superb color and clarity. Details: Item Type: Cluster Ring Metal: Platinum Weight: 17 Grams Ring Size: 7 - Comes with sizing guard on the interior ring shank Center Stone Details: Type: Natural Sapphire Carat: 10.35 Color: Pinkish Purple Cut: Oval Transparency: Transparent Treatment: None Origin: Ceylon AGL Certified. Side Stones Details: Type: Natural Diamond Cut: Pear, Marquise, and Round Brilliant Color: F-G Clarity: VVS2-VS1 Carat: 5.25 ctw (2.25ct marquise, 2ct pear, 1ct round) This one-of-a-kind piece is unmistakably natural and noticeably valuable, featuring a rare purple-pink sapphire surrounded by an intricate diamond cluster—ensuring no one else will have anything like it.

Read more less

GIA Certified 1.65 carat Fancy Intense Yellow modified brilliant cut diamond with a double halo of white diamonds and diamond shank in 18k white gold. The diamond is VVS1 clarity and features a unique cut that is seldom seen. It's a modified brilliant cut that mimics the faceting effect of an octagonal cut diamond. This innovative cutting style offers more facets and therefore more brilliance and sparkle. It's a noticeably valuable ring that no one else has and is certain to turn heads. The design offers the right amount of coverage on the finger and can be stacked or worn alone. Details: Item Type: Engagement/Statement Ring Metal: 18K White & Yellow Gold Weight: 8.10 Grams Ring Size: 6 Center Stone Details: Type: Natural Fancy Yellow Diamond Carat: 1.65 Color: Fancy Intense Yellow Cut: Round Brilliant Clarity: VVS1 Color Origin: Natural Measurements: 6.86-7.00 x 4.70 mm Certification: GIA #115382799 Side Stones Details: Type: Natural Diamond Cut: Round Brilliant Color: G-H Clarity: VS1-VS2 Carat: 1.10 ctw Quantity: 84 A one-of-a-kind piece, this unmistakably natural and noticeably valuable ring showcases a radiant fancy yellow diamond with a striking double halo of white diamonds, ensuring no one else will have anything like it.

Read more less

Rare GRS Certified 47.10 Carat Unheated Rectangular Cushion Cut Yellow Sapphire of Sri Lanka (Ceylon) Origin. Set in a vintage two tone platinum and 18k gold ring setting. Flanked by 50 old-cut natural diamonds. The ring setting bears a hand made milgrain finish mounting the old cut diamonds in a stunning floral motif pattern. Likely originating from the Art-Deco era to the mid-century retro era, circa 1940. It's a substantial piece with an investment grade center stone. Details: Item Type: Statement Ring Origin: Vintage, Circa 1940 Metal: 18K Yellow Gold & Platinum Weight: 10.66 Grams Center Stone Details: Type: Natural Sapphire Carat: 47.10 Color: Yellow Cut: Rectangular Cushion Origin: Ceylon (Sri Lanka) Transparency: Transparent Measurements: 20.70 x 16.60 x 13.31 MM Treatment: None (No Heat) GRS Certified: GRS2016-108962 Side Stones Details: Type: Natural Diamonds Cut: Old European Cut 50 diamonds (total carat weight not specified due to mounting) Color: H-J Clarity: SI2-SI1 This one-of-a-kind masterpiece is a testament to fine craftsmanship and the rarity of no-heat Ceylon sapphires. Whether as an investment piece or a statement heirloom, this ring exudes unparalleled elegance and sophistication.

Read more less

GRS Certified 4.17 Carat Minor Oil Colombian Emerald and 1.60 Carat Diamond Cocktail Ring in 14K White Gold. Unisex. Details: Item Type: Cocktail Ring Metal: 14K White Gold Size: 7 1/4 (Adjustable) Weight: 8.67 grams Band Width: 8mm Center Stone Details: Type: Natural Emerald Carat: 4.17 Carat Color: Pastel Green Cut: Step Cut (Octagonal) Origin: Colombia Measurements: 9.96 x 9.25 x 7.03 MM Treatment: Minor Oil (GRS Certified) Certification: GRS Report #GRS2024-039563Side Stones Details: Type: Natural Diamonds Carat: 1.60 CTTW Cut: Baguette & Round Brilliant This one-of-a-kind cocktail ring is designed to turn heads. At its heart, a 4.17-carat Colombian emerald glows with a rich, natural presence, enhanced by its expertly cut facets. A shimmering array of baguette and round diamonds frame the centerpiece, creating a striking contrast against the sleek 14K white gold setting. The bold 8mm band gives it a structured, statement look while maintaining a refined balance. Every detail—from the precise craftsmanship to the emerald’s color, luster, and unmistakable origin—makes this piece an exquisite addition to any collection.About The Emerald: The emerald center stone bear incredible luster, with a pastel yellowish green color that's unmistakably of Colombian origin. The Gem displays very good clarity, with a rich, deep color and brilliance that's noticeably valuable - all with minor oil treatment, which is quite rare for an emerald of this color, brilliance and size.

Read more less

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) View this post on Instagram A post shared by Assay (@assayjewelry)  

Read more less

GIA Certified unheated 9.72-carat purplish red star ruby sits at the heart of this vintage mixed cut diamond platinum ballerina-style ring.Details: Item Type: Cocktail Ring Metal: Platinum (PT900) Size: 6 1/4 (adjustable) Weight: 9.72 Grams Center Stone Details: Type: Star Ruby Carat: 9.72 Carat Cut: Cabochon Color: Purplish Red Treatment: No Heat Measurements: 11.87 x 9.85 x 7.66 mm Certificate: GIA 5234417842Side Stone Details: Type: Diamonds Cut: Round Brilliant & Tapered Baguette Carat: 0.82 ctw This captivating vintage ballerina ring highlights a mesmerizing 9.72-carat star ruby with a strong star effect. Set with 22 round brilliant and 10 tapered baguette diamonds to form a 4 point halo, adding brilliance and texture to the design. Perfect for collectors or anyone seeking a bold, one-of-a-kind addition to their jewelry collection.

Read more less

An antique Edwardian-era platinum engagement ring featuring a stunning GIA certified 5.01-carat old European cut diamond surrounded by a dazzling halo of 38 old-cut cascading diamonds.Details: Item Type: Engagement Ring Metal: Platinum (PT) Ring Size: 4 Era: Edwardian (Early 1900's) Center Stone Details: Type: Diamond Carat: 5.01 Color: L Clarity: VS2 Cut: Old European Cut (Circular Brilliant) Measurement: 10.68 - 10.71 x 7.10 MM Certificate: GIA #2235182840Side Stone Details: Type: Old Cut Diamonds Carat: 38 stones totaling 0.95 ctw This exquisite Edwardian antique engagement ring is a testament to timeless artistry of a bygone era. Crafted in platinum, it features a warm L color 5.01-carat old European cut diamond as its center, radiating vintage charm. A halo of descending 38 old-cut diamonds enhances the center stone, adding dimension and sparkle to this heirloom-worthy design. Intricate milgrain detailing highlights the craftsmanship of the era, creating a one-of-a-kind piece steeped in history. Perfect for those who appreciate enduring beauty and authentic antique style, this ring is a true treasure from the early 1900s, complete with a GIA certification.

Read more less