Mason Kay

Featuring (1) natural untreated white, translucent, textured jadeite jade melon cabochon, 25.26 X 17.95 X 8.08 mm, accompanied by a Mason Kay Authenticity Report #230623-1174, dated ...

Featuring one natural green, translucent oval cabochon, 9.06 X 14.64 X 5.01 mm, accompanied by a Mason Kay Report, stating No Dye or Impregnation Detected – ‘A’ Jade, surrounded by s...

Centering one oval natural translucent green jadeite jade cabochon, 12.21 X 10.00 X 3.99 mm, accompanied by a Mason Kay Report, stating Natural Jadeite Jade – No Dye or Impregnation ...

Featuring (1) natural untreated “red” (orange), semi-translucent, textured jadeite jade cabochon, 13.95 X 18.60 X 8.55 mm, accompanied by a Mason Kay Authenticity Report #230624-1298...

Featuring (2) natural untreated mottled green, translucent, jadeite jade segments, 73.65 X 9.69 mm, accompanied by a Mason Kay Authenticity Report #230623-4903, dated June 23, 2023, ...

Centering one oval natural bright “apple” green translucent jadeite jade cabochon, 6.37 X 5.25 X 3.08 mm, accompanied by a Mason Kay Report, stating Natural Jadeite Jade – No Dye or ...

This mottled orange yellow Natural jadeite jade, accompanied by a Mason Kay Report, stating Natural Jadeite Jade - No Dye or Impregnation Detected – “A” Jade, depicting a coiled drag...

Featuring (2) carved natural untreated grey, semi-translucent, textured jadeite jade segments, 69.60 X 8.94 mm, accompanied by a Mason Kay Authenticity Report #230624-4158, dated Jun...

Featuring (1) natural untreated translucent, semi-textured, lavender jadeite jade oval cabochon, 27 X 36.38 X 13.24 mm, accompanied by a Mason Kay Authenticity Report #230623-2941, d...

Composed of (67) natural untreated mottled green to white, semi-translucent, textured, 9.0 mm, jadeite jade beads, accompanied by a Mason Kay Authenticity Report #230624-11782, dated...

Featuring (2) carved natural untreated light green, semi-translucent, textured jadeite jade segments, 79.07 X 9.25 mm, accompanied by a Mason Kay Authenticity Report #230624-4648, da...

Featuring (5) navette-and pear shaped dark green translucent jadeite jade cabochons, accompanied by a Mason Kay Report, stating Natural jadeite Jade - No Dye or Impregnation Detected...

Featuring (3) natural untreated green, translucent, round jadeite jade cabochons, 7.10 X 4.03 mm, accompanied by a Mason Kay Authenticity Report #230623-529, dated June 23, 2023, sta...

Featuring (4) carved natural untreated green, semi-translucent, textured jadeite jade segments, 31.85 X 6.7 mm, accompanied by a Mason Kay Authenticity Report #230624-2364, dated Jun...

Featuring (1) natural untreated green, translucent, oval jadeite jade cabochon, 18.25 X 13.00 X 6.84 mm, accompanied by a Mason Kay Authenticity Report #230623-688, dated June 23, 20...

Featuring (1) natural untreated lavender jadeite jade saddle, 21.75 X 6.65 X 4.93 mm, accompanied by a Mason Kay Authenticity Report #230624-774, dated June 24, 2023, stating Natural...

Composed of (77) Natural translucent celadon jadeite jade beads, 9.00 mm, accompanied by a Mason Kay report, stating Natural Jadeite Jade – No Dye or Impregnation Detected – “A” Jade...

Featuring a carved Natural mottled green, semi translucent jadeite jade plaque, 32.53 X 23.85 X 2.65 mm, accompanied by a Mason Kay Report stating Natural Jadeite Jade – No Dye or Im...

Composed of (48) natural untreated opaque, textured, 9.0 mm, red jadeite jade beads, accompanied by a Mason Kay Authenticity Report #230623-8620, dated June 23, 2023, stating Natural...

Featuring 1 natural untreated green, translucent, oval jadeite jade cabochon, 12.45 mm x 9.28 mm x 4.23 mm, accompanied by a Mason Kay Authenticity Report #230623-750, dated June 23,...

Featuring (1) natural untreated mottled green, translucent, jadeite jade navette shaped cabochon, 17.70 X 7.34 X 6.90 mm, accompanied by a Mason Kay Authenticity Report #230623-1633,...

Featuring (2) matching natural untreated mottled green and white, translucent, jadeite jade oval cabochons, 17.95 X 12.95 mm, accompanied by a Mason Kay Authenticity Report #230623-5...

Featuring (1) natural untreated bright vivid green translucent, jadeite jade oval cabochon, 11.00 X 9.20 X 4.52 mm, accompanied by a Mason Kay Authenticity Report #230624-495, dated ...

Composed of (53) natural untreated semi-translucent, semi-textured, 9.0 mm, green jadeite jade beads, accompanied by a Mason Kay Authenticity Report #230623-7660, dated June 23, 2023...

The Jade weighs 3.55 carats and has an authenticity lab report from Mason Kay - the leaders in Jade certification. The Jade measures 12.92 x 9.17 x 3.56mms.

Featuring (2) carved Natural spotted green, opaque, Jadeite Jade wings, 27.65 X 18.40 X 18.40 mm, accented by (11) single-cut diamonds, 0.20 ct. tw., VS-SI, I-J, set in a 14k yellow ...

Featuring (2) drop and (2) round Natural lavender Jadeite Jade cabochons, 19 X 8.41 mm, and 7.5 mm, set in a 14k yellow gold articulated drop mounting, 43.4 mm in length, Gross Weigh...

The necklace comes with a Mason-Kay certificate stating that no dye or polymer has been detected.

Gorgeous, Unique Beaded Jadeite and Gold Necklace Features Jadeite Beads (11 - 12 mm) Alternating with 14k Gold Textured Beads Features 14k Yellow Gold Clover Pendant with Teardrop J...

Jadeite Jade Peapod 18k White Gold Pendant A peapod made of natural jadeite jade with no dye or impregnation detected, surrounded by round and single-cut diamonds, set on 18 karat w...

A gorgeous ring featuring a fine translucent 2.60 carat jadeite jade. It has a Mason Kay laboratory report certifying the jade as Grade A.

The lush green perfectly suits the foliate carvings. Accompanied by a Mason-Kay Jade Laboratory report stating no evidence of dye or impregnation of any kind, this stone is natural.

It just looks so good on the finger. Mason Kay report #190412-500, dated April 12, 2019, stating: Natural Jadeite Jade-No Dye or Impregnation detected-'A' Jade.

Approx. total weight: 40.5gm. Included is a Mason-Kay Lab report showing Natural Jadeite Jade with no dye or impregnation.

Era: Art Deco Composition: Platinum Primary Stone: 2 Hand Carved Pieces Of Jadeite Carat Weight: Approximately 22 Carats Secondary Stone: 2 Cabochon Pear Cut Jadeite Carat Weig...

The center features a gorgeous apple green Jade, Mason Kay certified natural type A Jade, measuring 18.70mm X 13.31mm.

This 18K white gold saddle ring prominently features a 19.65 x 7.22 mm saddle-style piece of green jadeite jade with a Mason-Kay lab report indicating that the stone is natural grade...

The jade (alone) is valued at $6,250 and was certified by Mason Kay, experts in Jade since 1976. The ring will ship with two Mason Kay reports: 1.

The earrings are accompanied by a Mason Kay report stating the Jadeite Jade is natural with no indication of treatment.

They have more modern clutch type backs for a pierced ear, and they could be converted to accommodate a non pierced ear. Mason-Kay, a leading international gem laboratory specializi...

Hallmarks: Marsh, Platinum Era: Art Deco Composition: Platinum Primary Stone: Cabochon Cut Jadeite Carat Weight: Approximately 2.5 Carats Secondary Stone: 4 Cabochon Pear Cut J...

14 karat yellow gold, carved jade pin/pendant with report from Mason Kay. Jade is a mirrored image carving with intricate carving on the back along with gold frame.

18K yellow gold carved jade pendant with Mason Kay report stating natural jadeite grade A jade, not dyed.

The piece comes with a report from Mason-Kay Jade Laboratory indicating that the stone is natural grade "A" jadeite jade and has no dye or polymer detected.

The jade (alone) is valued at $7,300 and was certified by Mason Kay, experts in Jade since 1976. The ring will ship with two Mason Kay reports: 1.

The jade is certified by Mason Kay, experts in Jade since 1976. The ring will ship with a Mason Kay report: 1.

14K yellow gold lavender jade pendant with Mason Kay report stating natural jadeite grade A jade, not dyed.

The ring ships with a certificate from Mason Kay stating the jade to be free from dye and polymer.

Masterfully handcrafted in platinum and 14k yellow gold and feature jadeite jade discs measuring 8.81mm x 1.86mm, 64 enhanced with single-cut diamonds weighing an estimated 1.30 cara...

The necklace is marked for 14K gold and bears a maker's mark that I believe belongs to "Mason Kay." This would make perfect sense, as Mason Kay was the actual creator of many iconic ...

The bangle ships with a certificate from Mason Kay testifying to the fact that the bangle is 100% natural jadeite jade with no dye or polymer.

The ring ships with a certificate from Mason Kay certifying that the jade is untreated type "A" jadeite jade.

It ships with a certificate from jade authority, Mason Kay stating that this is natural type "A" jade, meaning it is untreated in any way -100% natural.

Introducing our exquisite Genuine Burmese Lavender Jadeite Jade Bangle, a true masterpiece that exudes elegance and sophistication. This bangle showcases the rare and highly sought-a...

A Victorian gold and turquoise serpent necklace, the flexible tapering yellow gold body formed of three rows of scale-like collets each set with a round cabochon-cut turquoise, the h...

Jade bead necklace purchased in mid/late 20th century. Weighs 370.55g in total weight and has 45 beads, beads are Large in scale and knotted in between each bead 16 inches long. Perf...

Please check out the HD video! In addition to being a status symbol, wearing jade traditionally has been known to grant the user good luck, health, prosperity and longevity. Here i...

Please check out the HD video! In addition to being a status symbol, wearing jade traditionally has been known to grant the user good luck, health, prosperity and longevity. This i...

This all natural, untreated green jadeite jade bangle in size 55.6mm. This bangle's inner diameter measures 2.19 inches (55.6mm) and outer diameter measures 2.98 inches (75.8mm) wit...

Dalben design One of a Kind 18k yellow gold satin finishing ring with a magnificent 8,3 carat bezel-set emerald cut Colombian emerald. The Colombian emerald is accompanied by IGI (I...

This exquisite vintage Gianmaria Buccellati cocktail ring is crafted in 18k brushed and textured yellow gold with white gold accents. This ring is set with a faceted oval 7.0mm x 10....

A STUNNING red ruby diamond ring! GRS Certified 5.14 Carat Natural Untreated Unheated Red Ruby Diamond Ring 1 carats of white side diamonds. Custom platinum and 18k yellow gold mo...

Well played fusion of an antique diamond with a modern design. Binder Zurich is a well know name for collectors all over the world. The 7.21 ct old European cut diamond of approxim...

A 5.03 carat royal blue sapphire cushion cut platinum three stone ring, handcrafted by Merkaba Jewelry Beverly Hills as a refined collector jewel and meaningful alternative engagemen...

This piece is certified natural type A Jadeite jade. A very meaningful carving. The dragon motif in jade carving means power and protection. A 18k white gold and diamond clasp that c...