The Exceptional Stones collection is a tribute to the extraordinary beauty of diamonds, showcasing stones of exceptionally rare colours, clarity, and carat weights. Handpicked by Jessica for their unparalleled quality and unique character our Exceptional Stones have been articulated and expertly crafted into one-of-a-kind designs which perfectly complement the diamonds and allow their natural radiance to take the lead.
The Ellipse Diamond Torque Necklace
This one-of-a-kind Torque pendant showcases the 20.09ct Oval cut Ellipse diamond, set in an 18K white gold Georgian cut-down setting. The D colour, VS2 diamond is backed in 18K white gold to enhance its exceptional light performance and is suspended from our 18K yellow gold Torque, falling elegantly between the collarbones.
The Torque’s sleek design is made with a beautifully discreet catch clasp and gold wire complete with thick interior walls. With a very generous spread, the colourless diamond is both exceptionally rare and eye-catching.
The Goldfinch Diamond Ring
This 18K yellow gold Button Back ring hosts our exceptional 8.73ct, Fancy Intense Yellow, Cushion cut Goldfinch diamond. Jessica wanted to celebrate the rarity of the diamond’s saturated colour by pairing it with the gentle glow of an 18K yellow gold Georgian cut-down setting and band, creating a unique and one-of-a-kind ring.
The Raindrop Diamond Pendant
This one-of-a-kind high jewellery pendant showcases the 10.02ct Pear shape Raindrop diamond, set in a Georgian style cut-down setting in 18K blackened white gold.
Chosen for its impeccable proportions and characterful shape, this diamond has an SI1 clarity, and I colour. The sleek and minimalistic design of the Ball n Chain necklace allows this peerless stone to show off its natural beauty without interruption.
The Luna Diamond Ring
The one-of-a-kind D colour, Internally Flawless Luna diamond, totalling 15.02cts, is one of the rarest diamonds to ever pass through the House of Jessica McCormack.
With so many superlatives to its name, this colourless Cushion cut diamond is set in a minimalistic 18K white gold talon claw setting to complement its natural eye-catching character. With an 18K yellow gold loop ring band, which is inspired by the spilt shoulders of Georgian period rings, this design is an elegant blend of antique and contemporary that will delight for generations to come.

The Cosmos Diamond Ring
This one-of-a-kind high jewellery ring showcases the exceptional 14.71ct Cushion cut Cosmos diamond. The Button Back ring design allows the immense, VS1 diamond to take centre stage, with an 18K white gold Georgian cut-down setting complementing the I colour of the stone.
Inspired by the Georgian technique of placing a foil back onto a diamond ring, the Cosmos diamond ring is made with a layer of 18K white gold underneath the stone, which enhances the exceptional light performance of the diamond. The ring is complete with a slender 18K yellow gold band.

Our collection of Exceptional Stones is available exclusively at our Madison Avenue store, where each piece has been selected for its extraordinary beauty and rarity.
We invite you to contact us directly to arrange a private viewing and experience these remarkable jewels within the wonderous setting of 743 Madison Avenue.