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NIKOS KOULIS

18k White Gold Oui Diamond & Enamel Necklace

$10,920

18k White Gold Oui Diamond & Enamel Necklace

Nikos Koulis necklace from the Oui Collection. Polished 18-karat white gold chain and hardware. Integrated diamond and black enamel pendant. Faceted, octagonal-cut diamond at center. 1.28 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Black Enamel Ring, Size 6.75

$14,612

18k White Gold Oui Diamond & Black Enamel Ring, Size 6.75

Nikos Koulis ring from the Oui Collection. Polished 18-karat white gold hardware. Black enamel trim with white diamonds. Prong-set diamond center and shoulders. 1.61 total diamond carat weight. Size 6.75. buy from Neiman Marcus

NIKOS KOULIS

Universe Line 18k White Gold Mixed-Diamond Ring, Size 6.75

$7,920

Universe Line 18k White Gold Mixed-Diamond Ring, Size 6.75

Universe Line diamond ring by Nikos Koulis. Polished 18-karat white gold hardware. White diamond pav octagon border. Emerald-cut and trillion-cut diamonds. 0.87 total diamond carat weight. Size 6.75. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Mixed-Cut Diamond Ring, Size 6.75

$16,920

18k White Gold Oui Mixed-Cut Diamond Ring, Size 6.75

Nikos Koulis ring from the Oui Collection. Polished 18-karat white gold hardware. Mixed-cut diamonds with black enamel. Emerald-cut and baguette-cut diamonds. 1.13 total diamond carat weight. Size 6.75. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Sapphire Ring, Size 6.75

$12,236

18k White Gold Oui Diamond & Sapphire Ring, Size 6.75

Nikos Koulis ring from the Oui Collection. Polished 18-karat white gold hardware. Octagon face with black enamel frame. Emerald-cut sapphire in prong settings. Pav white diamonds as inner trim. 0.51 total diamond carat weight. 2.11 total sapphire carat weight. Size 6.75. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Trillion-Cut Diamond Ring, Size 6.75

$8,316

18k White Gold Oui Trillion-Cut Diamond Ring, Size 6.75

Nikos Koulis ring from the Oui Collection. Polished 18-karat white gold hardware. X motif with diamonds and black enamel. Prong-set diamonds and pav center. 0.81 total diamond carat weight. Size 6.75. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Emerald-Cut Diamond Pendant

$2,160

18k White Gold Oui Emerald-Cut Diamond Pendant

Nikos Koulis pendant from the Oui Collection. Polished 18-karat white gold chain and hardware. Integrated diamond and black enamel pendant. Pav and emerald-cut diamonds at center. 0.25 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Black Enamel Stud Earrings

$15,960

18k White Gold Oui Diamond & Black Enamel Stud Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. White diamond and black enamel studs. Octagonal-cut white diamond at center. 1.76 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Emerald-Cut Diamond Drop Earrings

$12,117

18k White Gold Oui Emerald-Cut Diamond Drop Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. White diamond and black enamel drops. Pav and emerald-cut diamond center. 1.12 total diamond carat weight. For pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond Pave & Emerald Earrings

$8,760

18k White Gold Oui Diamond Pave & Emerald Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. Pav white diamond posts and inner trim. Octagonal drop with black enamel frame. Faceted green emerald in prong settings. 0.50 total diamond carat weight. 1.03 total emerald carat weight. For pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Emerald Hoop Earrings

$16,200

18k White Gold Oui Diamond & Emerald Hoop Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. Prong-set white diamonds and emeralds. Black enamel forms hoop silhouette. 1.05 total emerald carat weight. 1.32 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Universe Line 18k White Gold Diamond Stud Earrings

$4,920

Universe Line 18k White Gold Diamond Stud Earrings

Universe Line earrings by Nikos Koulis. Polished 18-karat white gold hardware. One emerald-cut diamond at center. White diamond pav details trim. 0.49 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

V 18k White Gold, Black Enamel & Diamond Hoop Earrings

$13,920

V 18k White Gold, Black Enamel & Diamond Hoop Earrings

Nikos Koulis hoop earrings from the V Collection. Polished 18-karat white gold with black enamel. White diamond pav hoops with spikes. 1.59 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Black Enamel Earrings

$16,080

18k White Gold Oui Diamond & Black Enamel Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. White diamond and black enamel drops. Octagonal-cut white diamond at center. 1.81 total diamond carat weight. For pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Emerald-Cut Diamond Earrings

$4,440

18k White Gold Oui Emerald-Cut Diamond Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. White diamond and black enamel studs. Pav and emerald-cut diamond center. 0.50 total diamond carat weight. Post backs pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Emerald Earrings

$21,265

18k White Gold Oui Diamond & Emerald Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. Octagonal drop with black enamel frame. Prong-set faceted green emerald center. Pav white diamond details inner trim. 2.15 total emerald carat weight. 0.38 total diamond carat weight. For pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Sapphire Earrings

$8,760

18k White Gold Oui Diamond & Sapphire Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. Pav white diamond posts and inner trim. Octagonal drop with black enamel frame. Emerald-cut sapphire in prong settings. 1.22 total sapphire carat weight. 0.50 total diamond carat weight. For pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Enamel Earrings

$29,700

18k White Gold Oui Diamond & Enamel Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. Angular frame with black enamel trim. Mixed-cut and pav white diamonds. 2.85 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Enamel Cuff w/ Diamonds

$9,360

Oui 18k White Gold Enamel Cuff w/ Diamonds

Nikos Koulis bracelet from the Oui Collection. Polished 18-karat white gold with black enamel. Trillion-cut and emerald-cut diamonds at center. 0.24 emerald-cut diamond carat weight. 0.28 trillion-cut diamond carat weight. 0.52 total diamond carat weight. Split opening; slip-on style. buy from Neiman Marcus

NIKOS KOULIS

18k Oui Diamond & Black Enamel Octagonal Stud Earrings

$12,204

18k Oui Diamond & Black Enamel Octagonal Stud Earrings

Nikos Koulis diamond earrings from the Oui Collection. Polished 18-karat white gold hardware and settings. White diamond and black enamel octagonal studs. 1.05 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k Oui Asscher Diamond & Black Enamel Necklace

$4,395

18k Oui Asscher Diamond & Black Enamel Necklace

Nikos Koulis pendant necklace from the Oui Collection. Polished 18-karat white gold chain and hardware. Integrated octagonal pendant in black enamel. One asscher-cut prong-set white diamond. 0.34 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

18k Oui Diamond & Black Enamel Split Bracelet

$4,430

18k Oui Diamond & Black Enamel Split Bracelet

Nikos Koulis diamond bracelet from the Oui Collection. Polished 18-karat white gold hardware and settings. Prong-set white diamond and black enamel ends. Split opening eases dress; slip-on style. 0.39 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

18k Lingerie Pearl & Diamond Hoop Earrings

$13,200

18k Lingerie Pearl & Diamond Hoop Earrings

Nikos Koulis earrings from the Lingerie Collection. Polished 18-karat white gold posts and settings. Graduating naturally hued saltwater cultured pearls. White diamond pav hoop drop at center. 1.67 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Double Diamond & Black Enamel Drop Earrings

$12,830

Oui 18k White Gold Double Diamond & Black Enamel Drop Earrings

Nikos Koulis diamond earrings from the Oui Collection. Polished 18-karat white gold hardware and settings. Emerald-cut white diamond and black enamel posts. Trillion-cut white diamond drops in prong settings. 0.80 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k Oui Double Diamond & Black Enamel Necklace

$3,070

18k Oui Double Diamond & Black Enamel Necklace

Nikos Koulis pendant necklace from the Oui Collection. Polished 18-karat white gold chain and hardware. Integrated cushion-shaped drop in black enamel. Two round prong-set white diamond accents. 0.35 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Drop Earrings w/ Diamonds & Black Enamel

$27,600

Oui 18k White Gold Drop Earrings w/ Diamonds & Black Enamel

Oui diamond earrings by Nikos Koulis. Polished 18-karat white gold hardware. Angular drop with open round center. White diamonds and black enamel. 2.30 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Diamond, Emerald & Black Enamel Split Bracelet, 0.25tcw

$4,680

Oui 18k White Gold Diamond, Emerald & Black Enamel Split Bracelet, 0.25tcw

Nikos Koulis diamond bracelet from the Oui Collection. Polished 18-karat white gold hardware and settings. Prong-set emeralds and pav white diamonds. Octagon-shaped ends with black enamel. 0.25 total diamond carat weight. 0.35 total emerald carat weight. Split opening for slip-on style. Made in Greece. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Emerald-Cut Diamond & Black Enamel Ring

$3,600

Oui 18k White Gold Emerald-Cut Diamond & Black Enamel Ring

Nikos Koulis ring from the Oui Collection. 18-karat white gold with black enamel. White diamond pav details thin shank. One emerald-cut diamond at center. 0.38 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

Universe Line 18k White Gold Diamond & Enamel Square Drop Earrings

$14,735

Universe Line 18k White Gold Diamond & Enamel Square Drop Earrings

Nikos Koulis earrings from the Universe Line Collection. Polished 18-karat white gold hardware and settings. Round and baguette-cut white diamonds. Square drops with translucent enamel. 1.88 total diamond carat weight. For pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Spectrum 18k White Gold Diamond Post Earrings, 0.45tcw

$2,680

Spectrum 18k White Gold Diamond Post Earrings, 0.45tcw

Nikos Koulis earrings from the Spectrum Collection. Polished 18-karat white gold posts and settings. Trillion-cut and tapered baguette diamonds. 0.45 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Spectrum 18k White Gold Diamond Post Earrings

$1,820

Spectrum 18k White Gold Diamond Post Earrings

Nikos Koulis earrings from the Spectrum Collection. Polished 18-karat white gold posts and settings. Trillion-cut and tapered baguette diamonds. 0.29 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Energy 18k White Gold Diamond 3-Row Ring

$18,480

Energy 18k White Gold Diamond 3-Row Ring

Energy three-row ring by Nikos Koulis. Polished 18-karat white gold hardware. Baguette, round and trillion-cut diamonds. 1.96 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Black Enamel & Emerald-Cut Diamond Cuff

$13,080

Oui 18k White Gold Black Enamel & Emerald-Cut Diamond Cuff

Nikos Koulis cuff from the Oui Collection. Polished 18-karat white gold hardware. Black enamel and emerald-cut diamonds. 1.20 total diamond carat weight. Split opening for slip-on style. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Black Enamel & Sapphire Button Earrings

$3,960

Oui 18k White Gold Black Enamel & Sapphire Button Earrings

Nikos Koulis earrings from the Oui Collection. 18-karat white gold with black enamel trim. Sapphire center with white diamond pav. 0.46 total sapphire carat weight. 0.20 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

V 18k White Gold Diamond Energy Hoop Earrings

$22,680

V 18k White Gold Diamond Energy Hoop Earrings

Nikos Koulis earrings from the V Collection. Polished 18-karat white gold hardware. Black enamel with trillion-cut diamonds. 5.23 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Black Enamel & Sapphire Ring w/ Diamonds, SIze 6.5

$6,960

Oui 18k White Gold Black Enamel & Sapphire Ring w/ Diamonds, SIze 6.5

Nikos Koulis ring from the Oui Collection. 18-karat white gold with black enamel. One prong-set blue sapphire at center. Emerald-cut white diamonds at sides. 0.70 total sapphire carat weight. 0.66 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

Oui 3-Sapphire & Diamond Cuff in 18k White Gold/Enamel

$13,080

Oui 3-Sapphire & Diamond Cuff in 18k White Gold/Enamel

Nikos Koulis bracelet from the Oui Collection. 18-karat white gold with black enamel. Three blue sapphires with diamonds. 1.62 total sapphire carat weight. 0.43 total diamond carat weight. Split opening; slip-on style. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Diamond & Black Enamel Split Bracelet, 0.51tcw

$5,160

18k White Gold Diamond & Black Enamel Split Bracelet, 0.51tcw

Nikos Koulis diamond bracelet from the Oui Collection. Polished 18-karat white gold hardware and settings. Octagon-shaped ends with black enamel. Prong-set and pav white diamonds. 0.51 total diamond carat weight. Split opening for slip-on style. Made in Greece. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Split Diamond, Emerald & Black Enamel Bracelet

$9,360

18k White Gold Split Diamond, Emerald & Black Enamel Bracelet

Nikos Koulis bracelet from the Oui Collection. Polished 18-karat white gold hardware. Split frame with black enamel stations. Prong-set white diamonds and emerald. 0.28 total diamond carat weight. 0.46 total emerald carat weight. Slip-on style. Made in Greece. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold Circular Enamel Pendant Necklace w/ Diamonds

$3,791

Oui 18k White Gold Circular Enamel Pendant Necklace w/ Diamonds

Nikos Koulis necklace from the Oui Collection. 18-karat white gold cable chain and hardware. Integrated black enamel open circle pendant. Four marquise-cut white diamonds. 0.48 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Diamond & Black Enamel Dangle Earrings

$30,888

18k White Gold Oui Diamond & Black Enamel Dangle Earrings

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. Octagon posts and large octagon drops. White diamond pav and black enamel. 2.61 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Universe Line 18k White Gold Diamond Drop Earrings

$8,315

Universe Line 18k White Gold Diamond Drop Earrings

Universe Line earrings by Nikos Koulis. Polished 18-karat white gold hardware. White diamond pav posts and drops. One emerald-cut diamond at center. 1.17 total diamond carat weight. For pierced ears. buy from Neiman Marcus

NIKOS KOULIS

Universe Line 18k White Gold Mixed-Diamond Earrings

$16,750

Universe Line 18k White Gold Mixed-Diamond Earrings

Universe Line earrings by Nikos Koulis. Polished 18-karat white gold hardware. White diamond pav posts and drops. Emerald-cut and trillion-cut diamonds. 1.99 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

V 18k White Gold Diamond Dangle Earrings

$17,820

V 18k White Gold Diamond Dangle Earrings

Nikos Koulis earrings from the V Collection. Polished 18-karat white gold hardware. Graduating links with spiked dangle. White diamond and pav link drops. 2.19 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k Oui Diamond & Black Enamel Necklace

$2,020
Only 9 left in stock

18k Oui Diamond & Black Enamel Necklace

Nikos Koulis pendant necklace from the Oui Collection. Polished 18-karat white gold chain and hardware. Integrated cushion-shaped drop in black enamel. Single round prong-set white diamond center. 0.21 total diamond carat weight. buy from Neiman Marcus

NIKOS KOULIS

Oui 18k White Gold & Black Enamel Hoop Earrings with Emeralds & Diamond

$30,650

Oui 18k White Gold & Black Enamel Hoop Earrings with Emeralds & Diamond

Nikos Koulis earrings from the Oui Collection. Polished 18-karat white gold hardware. Prong-set emerald and white diamonds. Black enamel forms geometric hoops. 3.13 total emerald carat weight. 2.40 total diamond carat weight. Post backs for pierced ears. buy from Neiman Marcus

NIKOS KOULIS

18k White Gold Oui Pave & Trillion Diamond Ring, Size 6.75

$15,206

18k White Gold Oui Pave & Trillion Diamond Ring, Size 6.75

Nikos Koulis ring from the Oui Collection. Polished 18-karat white gold hardware. Wide frame with black enamel details. Trillion-cut diamonds and pav rows. 1.00 total diamond carat weight. Size 6.75. buy from Neiman Marcus

NIKOS KOULIS

Universe Line 18k White Gold Square Diamond Ring, Size 6.75

$9,000

Universe Line 18k White Gold Square Diamond Ring, Size 6.75

Universe Line square ring by Nikos Koulis. Polished 18-karat white gold hardware. White diamond pav square border. Round and baguette-cut diamonds. 0.87 total diamond carat weight. Size 6.75. buy from Neiman Marcus