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Obverse of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin featuring a vibrantly painted sea turtle with blue, orange, and yellow shell patterns swimming above coral, with an underwater scene as the background.
Reverse of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin featuring the right-facing effigy of King Charles III, surrounded by inscriptions including “CHARLES III,” “2025,” “5 DOLLARS,” and “2oz 999 SILVER” on a highly polished silver background.
Right-angled oblique view of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin showing a vibrant sea turtle with green and orange shell swimming across a blue underwater scene, with glinting silver edges and raised colorized relief.
Oblique angled view of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin showing a vivid underwater scene with a sea turtle in blue and green hues swimming above coral, with glinting colorized detail along the shell and body from a left-front perspective.
Reverse of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin featuring a right-facing effigy of King Charles III, with inscriptions including “CHARLES III,” “NIUE 2025,” “5 DOLLARS,” and “2oz 999 SILVER” against a polished silver background.
Reverse of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin featuring a portrait of King Charles III facing right, with inscriptions “CHARLES III,” “NIUE 2025,” “5 DOLLARS,” and “2oz 999 SILVER” on a proof-finish background.
Angled open display box holding the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin with vibrantly colored turtle design in capsule, set into red velvet interior, housed in black-lidded presentation box.
Angled view of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin displayed in an open presentation box with red interior, showing the colorful coin, protective capsule, and certificate or insert card beside it.
Angled view of the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin packaging showing the full-color sea turtle on the lid, turquoise bottom, and text reading “Nature’s Window Green Sea Turtle” along with GR Reserve box labeling.
Closed display box for the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin with black upper panel and turquoise base, featuring an underwater scene of a sea turtle and text reading “Nature’s Window Green Sea Turtle"
Illustrated certificate front for the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin featuring a colorful sea turtle swimming through a vibrant underwater scene with “NATURE’S WINDOW GREEN SEA TURTLE” text above and “2025 TWO OUNCE SILVER PROOF COIN” below.
Certificate of authenticity for the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin displaying coin specifications including purity, quality, diameter, and mintage, with “002/500” serialized edition number.
Promotional image showcasing the 2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin and its packaging, featuring the full-color turtle coin alongside a capsule and vibrant ocean-themed box with matching turtle imagery.

2025 Niue Nature’s Window Green Sea Turtle 2 oz Silver Colorized Proof Coin

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Original price was: $355.00.Current price is: $322.00. USD

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Item specifics
Year of Issue:2025
Issuing Country:Niue
Weight:2 oz
Composition:Silver
Purity:0.999
Mintage:500
Finish:Proof
Special Feature:Digital Color
Diameter:55mm
Denomination:$5
Certification:Mint Certified
Packaging:Wooden Display Box

Description

2025 Niue Nature’s Window – Green Sea Turtle 2 oz Silver Colorized Proof Coin – .999 Fine

A Striking Tribute to a Majestic Endangered Species

Blending modern minting artistry with ecological reverence, the 2025 Green Sea Turtle 2 oz Coin is a breathtaking addition to the Nature’s Window series. Struck from 99.9% pure silver and showcasing one of the most stunning uses of full-color technology in modern numismatics, this coin captures the grace and fragility of the endangered Green Sea Turtle in vivid detail.

Inspired by the luminous beauty of stained glass, the coin’s full-color design immerses the turtle in a brilliant aquatic backdrop, bringing light and movement to every angle.

🌊 Coin Highlights:

  • Contains 2 troy ounces of .999 fine silver

  • Struck in flawless Proof quality with advanced colorization

  • Full-color design evokes stained-glass artistry with underwater brilliance

  • Large format: 55 mm in diameter for enhanced detail

  • Extremely limited mintage – just 500 coins worldwide

  • Official legal tender of Niue – face value $5

  • Obverse features King Charles III portrait by Jody Clark

  • Housed in a premium glossy timber presentation case with Certificate of Authenticity

A Symbol of Nature’s Fragile Brilliance

The Green Sea Turtle has long symbolized endurance, wisdom, and the delicate balance of marine ecosystems. This 2025 release offers more than a visual masterpiece—it’s a numismatic tribute to preservation, celebrating both nature and the power of minting innovation.

Why Choose GR Reserve?

As a family-owned business with over 100 years of heritage, GR Reserve brings you authentic, exclusive collectibles from the world’s most innovative mints—products once reserved for wholesalers, now available directly to passionate collectors.

  • ✅ Established in 1915 – four generations of integrity

  • ✅ Direct distributor relationships ensure authenticity & competitive pricing

  • ✅ Customer-first philosophy focused on transparency & education

  • ✅ Fast, secure shipping and dedicated collector support

Own a Piece of Beauty and Purpose

With only 500 coins minted worldwide, this is an opportunity to add an extraordinary piece of collectible art to your portfolio—while honoring a species that deserves protection.

Secure yours today—before this underwater treasure disappears.

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