Rectangle Cushion

Showing 49–72 of 635 resultsSorted by latest

  • A rectangular, faceted 2.01-carat pastel pyrope garnet with visible inclusions sits on a gray patterned background, with "EARTH'S TREASURY" beneath it.

    Light Magenta Purple to Pink Color Change Pastel Pyrope GarnetLight Magenta Purple Pastel Pyrope Garnet

    $1,600.00

    -

    Add to cartDone
  • A 2.17-carat Spessartine Garnet, a faceted orange-red gemstone, is displayed on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    2.17-Carat Rich Orange Spessartine Garnet

    $1,700.00

    -

    Add to cartDone
  • A rectangular, faceted blue-green 2.15-carat Montana Sapphire rests on a textured surface featuring the "Earth's Treasury" logo and text below it.

    2.15-Carat Aqua Montana Sapphire

    $8,150.00

    -

    Add to cartDone
  • A Custom ring in platinum with a 1.27-carat Montana sapphire center, surrounded by small clear diamonds, is displayed on a green leaf.The "Celisse" ring in platinum, featuring a 1.27-carat Montana sapphire, is displayed on a rough blue mineral, with the "Earth's Treasury" logo below.

    The “Celisse” Halo Ring

    $2,200.00

    -

    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The "Josephine" ring in 18K white gold, featuring a 1.60-carat Ceylon sapphire with a prong-set halo of diamonds, is displayed on a blue-green gemstone against a patterned gray background with the "Earth's Treasury" logo below.The "Josephine" ring in 18K white gold, featuring a 1.60-carat Ceylon sapphire with a prong-set halo of diamonds, is displayed on a blue-green gemstone against a patterned gray background with the "Earth's Treasury" logo below.

    The “Josephine” Halo Ring

    $3,100.00

    -

    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • A 3.06-carat Ceylon sapphire with a cushion cut is shown on a textured gray surface, featuring the text "Earth's Treasury" at the bottom.

    3.06-Carat Pinkish Purple Ceylon Sapphire

    $13,300.00

    -

    Add to cartDone
  • A faceted, cushion-cut 2.20-Carat Ceylon Sapphire rests on a textured gray surface with the text "EARTH'S TREASURY" below. This dazzling gemstone captivates with its vivid hue and exceptional clarity.

    2.20-Carat Sky Blue Ceylon Sapphire

    $6,900.00

    -

    Add to cartDone
  • A faceted 2.09-carat Cornflower Blue Sapphire cushion-cut gemstone from "I see the strange light but it seems to come through at every an" rests on a textured gray surface, with "EARTH'S TREASURY" printed beneath.

    2.09-Carat Cornflower Blue Ceylon Sapphire

    $4,900.00

    -

    Add to cartDone
  • A 2.33-carat heated Montana sapphire in a rectangular cut with multiple facets sits on a textured gray surface. "Earth's Treasury" is shown at the bottom.

    2.33-Carat Peacock Blue Montana Sapphire (Heated)

    $5,950.00

    -

    Add to cartDone
  • A 2.80-carat heated Montana sapphire, rectangular and faceted, rests on a light textured surface with "Earth's Treasury" and logo below.

    2.80-Carat Blue-Aqua Particolored Montana Sapphire (Heated)

    $8,350.00

    -

    Add to cartDone
  • A faceted, cushion-cut 1.63-carat Ceylon Sapphire with a bluish-purple hue is displayed on a textured metallic surface. The text "Earth's Treasury" appears at the bottom.

    1.63-Carat Purple Ceylon Sapphire

    $3,200.00

    -

    Add to cartDone
  • A 2.88-carat Ceylon sapphire with a cushion cut is shown on a textured gray surface, featuring the "Earth's Treasury" text below.

    2.88-Carat Sky Blue Ceylon Sapphire

    $10,500.00

    -

    Add to cartDone
  • A 2.16-carat sapphire is displayed on a textured, pale surface with the text "EARTH'S TREASURY" at the bottom.

    2.16-Carat Light Spruce Green Sapphire

    $4,500.00

    -

    Add to cartDone
  • A 2.03-carat heated Ceylon sapphire, cut in a rectangular cushion shape, is showcased on a textured gray surface with "EARTH'S TREASURY" at the bottom.

    2.03-Carat Colorless Ceylon Sapphire (Heated)

    $1,900.00

    -

    Add to cartDone
  • A 2.11-carat heated sapphire with a square cut and blue-green hue rests on a textured gray surface, with "Earth's Treasury" displayed at the bottom.

    2.11-Carat Spruce Green Madagascar Sapphire (Heated)

    $5,800.00

    -

    Add to cartDone
  • A 2.58-carat heated cushion-cut sapphire is showcased on a textured metallic background with “Earth’s Treasury” at the bottom.

    2.58-Carat Rich Green Madagascar Sapphire (Heated)

    $7,200.00

    -

    Add to cartDone
  • A 1.18-carat cushion-cut Ceylon sapphire (heated) is showcased on a textured gray surface with the "Earth's Treasury" logo below it.

    1.18-Carat Purplish Pink Ceylon Sapphire (Heated)

    $2,300.00

    -

    Add to cartDone
  • The "Aralia" ring in platinum, featuring a 1.03-carat Montana sapphire and leaf details, is shown on a green plant stem with the Earth’s Treasury logo below.The "Aralia" ring in platinum with a 1.03-carat Montana sapphire stands upright, displaying its band and setting, with a rough blue stone behind it on a patterned surface. The Earth's Treasury logo appears below.

    The “Aralia” Ring

    $2,150.00

    -

    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • The Deluxe "Ivey" ring in 14k yellow gold with a 1.58-carat Australian sapphire, featuring an intricate leaf and vine design, is displayed on a green plant stem. Below it appears the text "EARTH'S TREASURY.The Deluxe "Ivey" ring in 14k yellow gold with a 1.58-carat Australian sapphire stands upright against a blue textured surface, displayed before a geometric patterned background with the Earth's Treasury logo below.

    The Deluxe “Ivey” Ring

    $2,100.00

    -

    Select optionsDone This product has multiple variants. The options may be chosen on the product page
  • A rectangular, pale yellow-green 1.02-carat heated Montana sapphire rests on a textured gray surface, with "EARTH'S TREASURY" below.

    1.02-Carat Pale Yellow-Green Montana Sapphire (Heated)

    $1,800.00

    -

    Add to cartDone
  • A 1.08-carat heated Montana sapphire, cut in a blue rectangular shape with intricate facets, is displayed on a light textured surface. The "Earth’s Treasury" logo is shown at the bottom.

    1.08-Carat Aqua-Blue Particolored Montana Sapphire (Heated)

    $1,900.00

    -

    Add to cartDone
  • A faceted blue-green 1.58-carat Montana Sapphire (Heated) with an octagonal shape is shown on a textured gray surface. "EARTH'S TREASURY" appears at the bottom.

    1.58-Carat Teal Green Montana Sapphire (Heated)

    $3,500.00

    -

    Add to cartDone
  • A 1.05-carat heated Montana sapphire with a radiant cut and blue-green hue is displayed on a textured light gray surface, with "EARTH'S TREASURY" below.

    1.05-Carat Teal-Aqua Particolored Montana Sapphire (Heated)

    $1,850.00

    -

    Add to cartDone
  • A rectangular, faceted blue 1.07-carat heated Montana sapphire rests on a textured light surface with "EARTH’S TREASURY" below it.

    1.07-Carat Teal Blue Montana Sapphire (Heated)

    $1,600.00

    -

    Add to cartDone

Natural Gemstone Jewelry & Loose Gemstones at Earth’s Treasury

At Earth’s Treasury, we make finding your color easy with one of the widest selections of ethically sourced gemstones available, from Montana sapphires and garnets to tourmaline and emeralds. Our team of talented designers and jewelers is dedicated to creating custom gemstone jewelry that’s as unique as your story. Whether you’re drawn to classic pieces or dream up a one-of-a-kind engagement ring, we’ll guide you every step of the way to ensure your jewelry feels personal, original, and entirely you.