NNJ Designs

A natural color-change alexandrite glows at the centre of this solid 14K rose gold ring, framed by six earth-mined diamonds. Alexandrite is one of the rarest of all gemstones, shifti...

A Sleeping Beauty turquoise in a clean, robin's-egg blue is set east-west at the centre of this solid 14K yellow gold ring, wrapped in a halo of twenty-six earth-mined diamonds. Slee...

A Colombian emerald glows in vivid, slightly bluish green at the centre of this solid 14K yellow gold ring, flanked by two earth-mined diamonds. Colombia is the world's most storied ...

A rare AAA padparadscha sapphire glows in its signature pink-orange at the centre of this solid two-tone 14K white and rose gold ring, framed by fourteen earth-mined diamonds. Padpar...

A 1.8-carat tsavorite garnet blazes in vivid, grass-green at the centre of this solid 14K yellow gold ring, set east-west and flanked by eighteen earth-mined diamonds. Tsavorite is a...

A Colombian emerald glows in vivid green at the centre of this solid 14K yellow gold ring, framed by ten earth-mined diamonds. Colombia is the world's most celebrated emerald source,...

A natural pink tourmaline glows in a soft, rosy pink at the centre of this solid 14K yellow gold ring, accented by four earth-mined diamonds. Pink tourmaline is untreated and loved f...

A 1.76-carat padparadscha sapphire glows in its signature pink-orange, set east-west at the centre of this solid 14K white gold ring and wrapped in a halo of twenty-four earth-mined ...

A 1.02-carat padparadscha sapphire glows in a warm blend of pink and orange at the centre of this solid 14K yellow gold ring, flanked by six earth-mined diamonds. Padparadscha is one...

This beautifully crafted bracelet in rich yellow gold showcases a continuous wave-like pattern, with each graceful curve embracing a sparkling round diamond. The design offers both m...

A rubellite tourmaline rests in a rich pink-red at the heart of this solid 14K white gold ring, encircled by sixty-two earth-mined diamonds. Rubellite is the most desirable of tourma...

A natural Madagascar ruby glows in a warm red at the centre of this solid 14K yellow gold estate ring. Madagascar is a celebrated modern source of fine ruby, and this round stone has...

Nine earth-mined diamonds totalling 0.99 carats sparkle across this substantial solid 14K white gold estate band. The generous weight of the gold gives it real presence on the hand, ...

Five natural sapphires in mixed blue and purple hues total 1.51 carats across this solid 18K yellow gold estate ring. Untreated and richly coloured, the cool blues and violets play a...

A blue zircon glows with lively, electric blue at the center of this solid 10K white gold estate ring. Not to be confused with synthetic cubic zirconia, natural zircon is a brilliant...

A rare AAA padparadscha sapphire glows in its signature blend of pink and orange at the centre of this solid 14K yellow gold ring, surrounded by twenty-eight earth-mined diamonds. Pa...

An indicolite tourmaline in a deep ocean blue anchors this solid 14K white gold ring, framed by ten earth-mined diamonds. Indicolite is the rare blue variety of tourmaline, and this ...

A natural red spinel glows with vivid, fiery red at the centre of this solid 14K white gold ring, framed by ten earth-mined diamonds. Spinel is untreated and long treasured for its r...

A natural red spinel glows with lively, saturated red at the centre of this solid 14K white gold ring, framed by sixteen earth-mined diamonds. Untreated and brilliant, this Madagasca...

A 1.12-carat natural purple spinel glows in a rich grape-purple at the centre of this solid 14K white gold ring, framed by ten earth-mined diamonds. Spinel is completely untreated an...

A natural purple spinel glows in a rich grape-purple at the centre of this solid 14K yellow gold ring, secured in a sleek bezel setting and accented by six earth-mined diamonds. Spin...

A solid natural boulder opal cabochon flashes with vivid play of color across this solid 14K white gold ring, accented by green tsavorite garnets. Australian boulder opal forms in ir...

Eight earth-mined diamonds alternate with seven natural emeralds around this solid 14K yellow gold band, a rhythmic play of green and white that sparkles from every angle. The emeral...

A generous 5.82-carat Madagascar ruby glows in a deep, warm red at the centre of this solid 14K yellow gold estate ring. Madagascar is a celebrated modern source of fine ruby, and th...

A Colombian emerald glows in vivid, slightly bluish green at the centre of this solid 14K yellow gold ring, framed by thirty-two earth-mined diamonds. Colombia is the world's most st...

A GIA-certified Mozambique ruby glows in a rich, saturated red at the centre of this solid 14K yellow gold ring, surrounded by thirty-eight earth-mined diamonds. Mozambique has becom...

A natural blue spinel glows in a rich, saturated blue at the center of this solid 14K white gold ring, flanked by two earth-mined diamonds. Spinel is completely untreated and prized ...

A substantial wide band in solid 14K yellow gold with a smooth comfort-fit interior that sits easily on the finger. Clean, contemporary, and quietly luxurious, its polished surface m...

A natural purple spinel glows in a rich grape-purple at the center of this pared-back, minimal solid 14K white gold ring, flanked by two small earth-mined diamonds. Spinel is complet...

A charming crab-motif pendant crafted in solid 14K yellow gold, its sculpted claws and shell rendered in rich detail. Substantial and full of character, it makes a playful yet luxuri...

A matched pair of Ceylon blue sapphires glows in deep, velvety blue at the center of these solid 14K yellow gold stud earrings, each accented by earth-mined diamonds. Sri Lanka has p...

A clever 2-in-1 convertible design. Wear them as simple diamond hoops on their own, then attach the emerald drops to transform them into elegant drop earrings — two looks in one pair...

Celebrate Celtic heritage with this beautiful Triquetra pendant crafted in solid 14K gold. Featuring the iconic Trinity Knot, a symbol of unity, eternity, and the connection of mind,...

A 7.87-carat star ruby displays a soft six-rayed star across its domed cabochon, set in solid 14K yellow gold with fourteen earth-mined diamond accents. This Madagascar star ruby sho...

A 5.81-carat rainbow moonstone cabochon glows with a floating blue adularescence across this solid 14K yellow gold ring, accented by ten earth-mined diamonds. Rainbow moonstone is co...

A natural purple spinel glows in a rich grape-purple at the centre of this solid 14K white gold ring, accented by six earth-mined diamonds. Spinel is completely untreated and prized ...

An intricately woven basket-weave design gives this solid 14K yellow gold estate ring texture and depth, catching the light across its patterned surface. Substantial and beautifully ...

A crown-motif stackable band in solid 18K yellow gold, its regal detailing designed to layer beautifully with other rings. Rich 18K gold gives it warmth and presence despite its slim...

A comfortable flex band in solid 14K yellow gold, its flexible construction moving gently with the finger for all-day ease. Unadorned and quietly polished, it stacks beautifully or w...

A natural purple garnet glows in a rich grape-purple at the centre of this solid 14K yellow gold estate ring. Untreated and beautifully saturated, this 1.1-carat round garnet makes a...

Earth-mined diamonds sparkle across this solid 10K white gold estate band, a timeless piece that works on its own or stacked with other rings. Clean and classic, it never dates. A ha...

A single earth-mined diamond sparkles at the centre of this solid 10K white gold estate ring, a delicate and understated design. Simple enough for everyday wear, it carries the quiet...

A natural purple garnet glows in a rich grape-purple at the centre of this solid 14K yellow gold ring, surrounded by fourteen vivid green tsavorite garnet accents in a nature-inspire...

A dramatic 5.12-carat Ethiopian opal cabochon flashes with a full play of colour across this solid 14K yellow gold ring, framed by twenty-two earth-mined diamonds. Welo opals from Et...

Twenty-three earth-mined diamonds sparkle across this delicate solid 14K rose gold band, totalling 0.23 carats. The warm rose gold flatters the diamonds' brilliance, and the slim pro...

A Ceylon blue sapphire glows in a deep, velvety blue at the centre of this solid 14K yellow gold ring, framed by eighteen earth-mined diamonds. Sri Lanka has produced the world's fin...

A 2.73-carat Cor de Rosa morganite glows in a soft rose-pink at the centre of this solid 14K rose gold ring, accented by six earth-mined diamonds. Cor de Rosa is the Brazilian trade ...

A remarkable 12.57-carat star ruby displays a striking six-rayed star across its domed cabochon, set in solid 14K yellow gold with ten earth-mined diamond accents. This large Madagas...

A GIA-certified purple sapphire glows in a rich royal purple at the heart of this solid 14K white gold ring, framed by sixteen earth-mined diamonds. Natural and untreated, this 1.33-...

A rare AAA padparadscha sapphire glows in its signature blend of pink and orange at the centre of this solid 14K yellow gold ring, surrounded by thirty-two earth-mined diamonds. Padp...

A Zambian emerald in a lush, forest green sits at the center of this solid 14K white gold ring, framed by fourteen earth-mined diamonds. Zambian emeralds are prized for their deep sa...

This GIA-certified Mozambique ruby displays the rich, romantic red hue that has made fine rubies one of the world’s most treasured gemstones for centuries. Measuring approximately 8....

This exceptional Mozambique ruby displays the rich, passionate red hue that has made fine rubies one of the most coveted gemstones in the world for centuries. Measuring approximately...

A vivid treasure from the legendary mines of Burma, this GIA certified ruby glows with the rich, romantic red hue that has made Burmese rubies the most coveted in the world for centu...

This premium GIA certified Burma ruby captures the unmistakable allure that has made Burmese rubies legendary among gemstone collectors and fine jewelry lovers alike. Displaying a vi...

This exceptional 1.74 carat Burma ruby displays the rich, romantic red color that has made Burmese rubies some of the most coveted gemstones in the world. Expertly fashioned in a gra...

This exquisite GIA-certified Burma Ruby, with its rich, deep red hue, is an exceptional choice for those seeking a luxury investment piece. Weighing 1.7 carats, this vibrant pear-sha...

This GIA-certified Burma Ruby, weighing 1.73 carats with a stunning 7.38x5.71x4.63mm cushion cut, is a rare and exquisite gem. Sourced from Myanmar, known for producing the world's f...

This GIA certified Burma ruby weighs approximately 1.77 carats and showcases the unmistakable richness and allure that fine Burmese rubies are known for. Cut in a softly rounded cush...

This exceptional ~1.49ct Burma ruby glows with the rich, romantic red that has made Burmese rubies legendary among collectors for centuries. Measuring 6.49 x 5.98 x 4.67mm, this cush...