Estimated price: 13,000 EURPtolemaic dynasty. Ptolemy IV, 221-204 BC.
Octodrachm / Mnaieion, Alexandria. Extremely fine.
Heidelberger Münzhandlung Grün: Auction 9079
Estimated price: 10,000 EURRoman Empire. Nerva, 96-98. Aureus. Extremely fine.Heidelberger Münzhandlung Grün: Auction 90187
Estimated price: 5,000 EURRoman Empire. Antoninus Pius, 138-161. Aureus.
From Münzen und Medaillen AG. About mint state.
Heidelberger Münzhandlung Grün: Auction 90208
Estimated price: 1,500 EURMonaco. 2 euros 2007. 25th anniversary of the death of Grace
Kelly. Extremely fine to FDC.
Heidelberger Münzhandlung Grün: Auction 90568
Estimated price: 25,000 EURNassau-Weilburg. Charles Christian, 1753-1788.
Gold medal of 25 ducats, 1782, by A. Schäffer. Extremely rare.
Extremely fine.
Heidelberger Münzhandlung Grün: Auction 901151
Estimated price: 10,000 EURChina. Hsuan Tung, 1908-1911. 20 cents n.d. (1908).
PCGS MS64. FDC.
Heidelberger Münzhandlung Grün: Auction 90690
Estimated price: 15,000 EURChina. Xinjiang. 1 mace n.d. (1907). PCGS AU55. Extremely fine.Heidelberger Münzhandlung Grün: Auction 90733
Estimated price: 16,000 EURBrandenburg-Bayreuth. Christian Ernst, 1655-1712. 1679 taler,
Nuremberg. Extremely rare.
Heidelberger Münzhandlung Grün: Auction 90994
Estimated price: 13,000 EURGerman Empire. Oldenburg. 10 marks, 1874. Showpiece!
Extremely rare in this quality! PCGS MS63. About FDC.
Heidelberger Münzhandlung Grün: Auction 901993
Estimated price: 5,850 EURGerman East Africa. 15 rupees, 1916, Tabora. About mint state.Heidelberger Münzhandlung Grün: Auction 902246
all News

Caribbean Guilder: Joint Currency Introduced for Curaçao and Sint Maarten

By Sebastian Wieschowski

After years of preparation and several delays, the time has finally come: On 31 March 2025, the Caribbean guilder (abbreviation: CMg) was officially introduced in the autonomous countries of Curaçao and Sint Maarten. The new currency replaces the former Netherlands Antillean guilder (ANG), which remained in circulation following the dissolution of the Netherlands Antilles in 2010.

Content

Curaçao has a new currency – and that means new coins are now in circulation. Photo: LPETTET via Getty Images / Canva Pro.

Curaçao has a new currency – and that means new coins are now in circulation. Photo: LPETTET via Getty Images / Canva Pro.

The introduction of the Caribbean guilder marks an important step towards economic integration between the two island nations, which have shared a central bank – the Centrale Bank van Curaçao en Sint Maarten (CBCS) – since 2010. The currency conversion was made at a one-to-one rate, meaning the Caribbean guilder holds the same value as the outgoing Antillean guilder.

Fixed Peg to the US Dollar

Like its predecessor, the Caribbean guilder is firmly pegged to the US dollar: one US dollar equals 1.79 CMg. This fixed exchange rate is designed to ensure economic stability and foster trust in the new currency.
The CBCS emphasised ahead of the launch that the Caribbean guilder is intended to modernise the region’s payment system in the long term. At the same time, monetary policy is expected to become more efficient as outdated structures linked to the Antillean guilder are finally phased out.

Maritime Design – Banknotes with Depth

The new banknotes and coins reflect the geographic and cultural identity of the two islands. The theme of the banknote series is “Life Below the Sea.” The front side features colourful marine fauna native to Curaçao and Sint Maarten – including coral reef fish, sea turtles and other typical ocean life. The reverse side depicts significant historical and cultural landmarks from both countries.
The banknotes have been issued in denominations of 10, 20, 50 and 100 CMg and are equipped with modern security features, including watermarks, holograms, and tactile elements for the visually impaired.

The new coins, in cent and guilder denominations, are now being issued. Photo: Centrale Bank van Curaçao en Sint Maarten.

The new coins, in cent and guilder denominations, are now being issued. Photo: Centrale Bank van Curaçao en Sint Maarten.

Coins with Local Variations

The new coins also embrace the maritime theme, showcasing designs such as seashells, wave patterns, and sea turtles. Interestingly, Curaçao and Sint Maarten each have slightly different coin designs – a subtle nod to national identity within the shared currency. The circulation coins are available in denominations of 1, 5, 10, 25, and 50 cents, as well as 1 and 2½ CMg.

Transition Period for the Old Guilder

Banknotes and coins of the former Netherlands Antillean guilder will remain in circulation for a limited time and can be exchanged at banks and designated locations. The CBCS has announced that the exchange period will be generous to ensure a smooth transition.

A Historic Step for the Region

With the launch of the Caribbean guilder, Curaçao and Sint Maarten are entering a new chapter of economic autonomy. The new currency not only symbolises their shared future but also aims to lay the foundation for a more modern and efficient financial system in the region.

Background: The Story Behind the Currency Union

Following the dissolution of the Netherlands Antilles on 10 October 2010, Curaçao and Sint Maarten became autonomous countries within the Kingdom of the Netherlands. A joint currency was part of the original vision – but the actual implementation was delayed several times. With the Caribbean guilder, that vision has now become a reality.

Don’t miss a thing!

Subscribe to our newsletter here