Diamond Rings in 18k Gold | Invisible Set, Pie-Cut & Bridal | Trinity Designer Jewel

Every ring in this collection is made to order in our Bangkok atelier — handcrafted in 18-karat gold with natural earth-mined diamonds and precious gemstones. No mass production. No compromise on quality.

Browse our signature styles: pie-cut mosaic diamond rings that deliver a 3 to 4-carat face-up look at a fraction of the solitaire price, invisible set gemstone rings where no metal touches the stone surface, minimalist diamond bands built for daily wear, and bridal stacker rings in marquise, baguette, and round brilliant cuts.

All diamonds are natural — VVS to VS clarity, FG colour. All rings ship free, fully insured, worldwide.

87 products found in Rings

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TR059 Mirage Diamond Ring Rail Band

TR059 Pie-Cut Diamond Ring 18k Gold | 4 Carat Rail Band Elegant

$4,890.00

Ring

Pie-Cut Diamond Ring — 18K White Gold | Trinity Designer Jewel Bangkok

Linear Baguette Diamond Open Shank Ring — 18K White Gold

From $4,850.00

Ring

TR045 Pie-Cut Diamond Ring 18k Gold | 4 Carat Statement Diamond Ring | Trinity Designer Jewel Bangkok

TR046 Pie-Cut Diamond Ring 18k Gold | 4 Carat Statement Diamond Ring

$3,340.00

Ring

Elegant TTR028 Mirage Diamond Ring

TTR028 Pie-Cut Diamond Ring 18k Gold | 4 Carat Stylish Statement

$3,870.00

Ring

Elegant 18kt Gold Diamond Ring with Classic Emerald Cut Design

TR087 Pie-Cut Diamond Ring 18k Gold | Modern Large Look Ring

$1,360.00

Modern Minimalist Diamond Ring with Clean Lines and Sparkling

TR086 Minimalist Diamond 0.25 Ct Curved Diamond Ring in 18K White Gold | Contour Diamond Band

$660.00

Stunning Diamond Ring Featuring Step Cut Mosaic Design

TR085 Pie-Cut Diamond Ring 18k Gold | Step Cut Mosaic Statement

$990.00

Timeless Ring with Petite Minimalist Diamond Beaded Bar for Wedding

TR084 Petite Diamond Wedding Ring 18k Gold | Minimalist Beaded Bar Band

$1,260.00

Minimalist Diamond Beaded Bar Wedding Band Ring

TR082 Petite Minimalist Diamond Ring 18k Gold | Elegant Daily Wear Ring

$1,060.00

Baguette & Round Diamond Ring 18k Gold | Chic Minimalist Diamond Band | Trinity Designer Jewel Bangkok

Baguette & Round Diamond Ring 18k Gold | Chic Minimalist Diamond Band

$696.00

Ring

Stylish Invisible Set Ruby and Pie Cut Diamond Ring, Designed for Women and Girls

Invisible Set Ruby & Diamond Ring 18k Gold | No Prong Statement Ring

$5,020.00

Ring

Sophisticated Pie Cut Diamond Ring Adorned with Ruby & Diamonds

Diamond & Ruby Ring 18k Gold | Large Look Diamond Ring with Ruby Accents

$3,400.00

Ring

Premium Cluster of Diamonds with Invisible Set Blue Sapphire Ring Jewelry for Women

Invisible Set Blue Sapphire & Diamond Ring 18k Gold | No Prong Gemstone Ring

$2,630.00

Ring

Art Deco Invisible Set Sapphire & Diamond Ring 18k Gold | Vintage Halo Ring | Trinity Designer Jewel Bangkok

Art Deco Invisible Set Sapphire & Diamond Ring 18k Gold | Vintage Halo Ring

$1,016.00

Ring

Fancy Cut Diamond Band Ring 18k Gold | Composite Setting Statement Ring | Trinity Designer Jewel Bangkok

Fancy Cut Diamond Band Ring 18k Gold | Composite Setting Statement Ring

$1,184.00

Ring

Invisible Set Ruby Flower Ring 18k Gold | No Prong Floral Statement Ring | Trinity Designer Jewel Bangkok

Invisible Set Ruby Flower Ring 18k Gold | No Prong Floral Statement Ring

$2,088.00

Ring

Invisible Set Ruby Diamond Statement Ring 18k Gold | No Prong Bold Ring | Trinity Designer Jewel Bangkok

Invisible Set Ruby Diamond Statement Ring 18k Gold | No Prong Bold Ring

$2,104.00

Ring

Invisible Set Ruby Halo Ring 18k Gold | Marquise Diamond Statement Ring | Trinity Designer Jewel Bangkok

Invisible Set Ruby Halo Ring 18k Gold | Marquise Diamond Statement Ring

$2,512.00

Ring

Gorgeous Flower Ring with Invisible Set Ruby and Diamonds for Women and Girls

Invisible Set Ruby & Diamond Flower Ring 18k Gold | Statement Floral Ring

$2,790.00

Ring

Elegant Asscher Pie Cut Diamond and Ruby Ring for Women

Asscher Cut Diamond & Ruby Ring 18k Gold | Large Look Gemstone Statement Ring

$5,070.00

Ring

Radiant Cluster Diamond & Invisible Set Ruby Ring

Invisible Set Ruby & Diamond Cluster Ring 18k Gold | No Prong Gemstone Ring

$3,330.00

Ring

Cluster of Diamonds & Invisible Set Ruby Ring for Women and Girls

Invisible Set Ruby & Diamond Cluster Ring 18k Gold | Gemstone Statement Ring

$3,050.00

Ring

Invisible Set Ruby Butterfly Ring 18k Gold | No Prong Gemstone Statement Ring | Trinity Designer Jewel Bangkok

Invisible Set Blue Sapphire Butterfly Ring 18k White Gold | Natural Sapphire & Diamond Statement Ring

$3,168.00

Ring

Invisible Set Ruby & Diamond Statement Ring 18k Gold | No Prong Bold Ring | Trinity Designer Jewel Bangkok

Invisible Set Ruby & Diamond Statement Ring 18k Gold | No Prong Bold Ring

$4,280.00

Ring

TR065 - Stunning Pizza Cut Diamond Ring with Round Diamond Illusion in Bezel Setting

TR065 Pie-Cut Diamond Ring 18k Gold | Round Bezel Set Statement

$3,260.00

Ring

TR061 Pie-Cut Diamond Ring 18k Gold | 3 Carat Stylish Statement | Trinity Designer Jewel Bangkok

TR061 Pie-Cut Diamond Ring 18k Gold | 3 Carat Stylish Statement

$3,310.00

Ring

TR060 Mirage Diamond Ring

TR056 Pie-Cut Diamond Ring 18k Gold | 3 Carat Statement Diamond Ring

$3,480.00

Ring

TR058 Pie-Cut Diamond Ring 18k Gold | 4 Carat Rail Band Luxury | Trinity Designer Jewel Bangkok

TR058 Pie-Cut Diamond Ring 18k Gold | 4 Carat Rail Band Luxury

$4,140.00

Ring

TR057 Mirage Diamond Ring

TR057 Pie-Cut Diamond Ring 18k Gold | 4 Carat Glamour Statement

$4,600.00

Ring

Elegant TR055 Diamond Ring

TR055 Pie-Cut Diamond Ring 18k Gold | Emerald Cut Mosaic 1-4 Carat

From $1,590.00

Ring

TR050 - Stunning 4 ct Mirage Diamond Ring for an Elegant Touch

TR050 Pie-Cut Diamond Ring 18k Gold | 4 Carat Elegant Statement

$3,940.00

Ring

Elegant TR048 Diamond Ring

TR048 Pie-Cut Diamond Ring 18k Gold | Emerald Cut 1-4 Carat Look

From $1,390.00

Ring

Elegance with the TR047 Mirage Diamond Ring

TR047 Pie-Cut Diamond Ring 18k Gold | 4 Carat Dazzling Statement

$5,390.00

Ring

TR045 Pie-Cut Diamond Ring 18k Gold | 4 Carat Unique Statement Ring | Trinity Designer Jewel Bangkok

TR045 Pie-Cut Diamond Ring 18k Gold | 4 Carat Unique Statement Ring

$3,880.00

Ring

TR044 - Mirage Diamond Ring 4 ct Face Up Beautiful Design for Women

TR044 Pie-Cut Diamond Ring 18k Gold | 4 Carat Beautiful Statement

$3,940.00

Ring

TR043 Pie-Cut Diamond Ring 18k Gold | Classic Large Look Statement | Trinity Designer Jewel Bangkok

TR043 Pie-Cut Diamond Ring 18k Gold | Classic Large Look Statement

$3,760.00

Ring

Elegance Redefined: TR042 Mirage Diamond Ring

TR042 Pie-Cut Diamond Ring 18k Gold | 3 Carat Luxurious Statement

$3,850.00

Ring

TR041 - Modern Stylish Mirage Diamond Ring Perfect Jewelry

TR040 Pie-Cut Diamond Ring 18k Gold | 3 Carat Statement Diamond Ring

$3,980.00

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TR040 Mirage Diamond Ring

TR040 Pie-Cut Diamond Ring 18k Gold | 3 Carat Stunning Statement Ring

$3,080.00

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TR038 Pie-Cut Diamond Ring 18k Gold | 2 Carat Half Eternity Band | Trinity Designer Jewel Bangkok

TR038 Pie-Cut Diamond Ring 18k Gold | 2 Carat Half Eternity Band

$8,180.00

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Step Cut Mosaic Pie Cut Diamond Ring

TR037 Pie-Cut Diamond Ring 18k Gold | Classic Emerald Cut Large Look

From $1,390.00

Ring

TR036 Pie-Cut Diamond Wedding Ring 18k Gold | Emerald Cut Bridal Ring

From $2,440.00

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TR035 Pie-Cut Diamond Ring 18k Gold | 3 Carat Luxury Statement Ring | Trinity Designer Jewel Bangkok

TR035 Pie-Cut Diamond Ring 18k Gold | 3 Carat Luxury Statement Ring

$3,260.00

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TR026 Pie-Cut Diamond Ring 18k Gold | 1.5 Carat Luxurious Statement | Trinity Designer Jewel Bangkok

TR026 Pie-Cut Diamond Ring 18k Gold | 1.5 Carat Luxurious Statement

$5,540.00

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TR025-Mirage Diamond Ring

TR025 Pie-Cut Diamond Ring 18k Gold | 3 Carat Look Statement Ring

$3,100.00

Ring

TR021 - Chic 18k Diamond Ring with Emerald Cut Illusion and Step Cut Pie Cut Design

TR021 Pie-Cut Diamond Ring 18k Gold | Chic Emerald Cut Mosaic

From $1,540.00

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TR020 - Unique 18k Diamond Ring with Emerald Cut Illusion and Stylish Step Cut Mosaic

TR020 Pie-Cut Diamond Ring 18k Gold | Unique Step Cut Mosaic

From $1,580.00

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TR019 - Exquisite 18k Diamond Ring Featuring Emerald Cut Illusion and Step Cut Pie Cut Design

TR019 Pie-Cut Diamond Ring 18k Gold | Emerald Cut Mosaic Setting

From $1,540.00

Ring