Kohinoor Black Duetto Rock Kihlasormus 006-807
Kohinoor

Kohinoor Duetto Black Rock Engagement Ring 006-807

006-807-200

€249,00 €199,20
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Key product details
  • Ring style: Engagement ring
  • Band width: 5,0 mm
Whole
Ring size guide

Not sure of your ring size?

1. Measure a ring that already fits

Measure the inside diameter at the widest point in millimetres. An inside diameter of 17.0 mm corresponds to ring size 17.0.

2. Measure your finger

Use a narrow strip of paper, keep it snug but not tight, and measure the circumference in millimetres. Measure 2–3 times, preferably later in the day.

SizeInside ØFinger circumference
15,015,0 mm47,1 mm
15,515,5 mm48,7 mm
16,016,0 mm50,3 mm
16,516,5 mm51,8 mm
17,017,0 mm53,4 mm
17,517,5 mm55,0 mm
18,018,0 mm56,5 mm
18,518,5 mm58,1 mm
19,019,0 mm59,7 mm
19,519,5 mm61,3 mm
20,020,0 mm62,8 mm
20,520,5 mm64,4 mm
21,021,0 mm66,0 mm
21,521,5 mm67,5 mm
22,022,0 mm69,1 mm
22,522,5 mm70,7 mm
23,023,0 mm72,3 mm
23,523,5 mm73,8 mm
24,024,0 mm75,4 mm
Between two sizes? Ring width and your knuckle also affect fit. Ask us before ordering if you are unsure.
What if the size is not quite right?

For a ring purchased from us, you get the first ring size adjustment at a reduced price compared with our standard price, if the ring can be resized.

Finger size naturally varies.

Your finger can be a different size in the morning and evening, as well as in warm and cold weather. A ring does not need to feel exactly the same every day. A size adjustment is worth considering only if the ring is repeatedly too tight or too loose at different times.

You can also visit Tammisto or Kamppi for sizing

14K or 18K gold?

14K gold contains 58.5% pure gold. The alloy is typically harder and usually more affordable.

18K gold contains 75% pure gold. It has a higher gold content and, for the same ring model, costs more than the 14K version.

Both are genuine gold and suitable for everyday rings.

Natural or lab-grown diamond?

Natural diamond formed in nature over a very long period of time.

Lab-grown diamond is a real diamond grown in controlled laboratory conditions. Its crystal structure and essential material properties are the same; the key difference is origin.

At the same size, a lab-grown diamond is less expensive than a natural diamond.
In stock — dispatch in 1–2 business days
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Same price for both styles. Choose basic (€1.00) or premium (€5.90) below.

Note! If you order more than one product, they will be wrapped in the same gift package by default. If you only want one of the products wrapped, please add a note in the "Additional notes" field at checkout specifying which product you want wrapped.

30-day return policy
Authorized retailer
Free shipping
Finnish family business since 1949 · Stores in Tammisto and Kamppi
Store availability

Kohinoor Duetto Black Rock Engagement Ring 006-807

The Kohinoor Duetto Black Rock engagement ring is a striking and bold alternative to a traditional gold ring. This black engagement ring is 5 mm wide and features a textured surface. The surface pattern of the black Rock ring resembles the rough texture of a stone. The rings are handcrafted in Hämeenlinna, and the surface pattern of each ring is unique. The ring has a flat profile with a rounded inner surface. This Kohinoor ring is an excellent choice for a man's engagement ring. Due to the width of the ring band, it is recommended to choose a size half a number larger than your usual ring size to ensure a proper fit.

Zirconium is an element used in industry, but due to its durability, it is also a popular material for rings. Zirconium is a non-allergenic metal and does not contain nickel. A zirconium ring has a very hard surface, yet it is lighter than, for example, steel. Please note that it is not possible to resize a ring made of zirconium!

Kohinoor rings and diamond jewelry are handcrafted in Hämeenlinna at the Kultakeskus factory in Finland, with over a hundred years of experience. Kohinoor products have been awarded the Key Flag and Design from Finland symbols as a testament to Finnish work and design. All Kohinoor rings are available in white, yellow, or rose gold versions. If you cannot find the desired Kohinoor ring in the online store, please contact customer service.

  • Material: zirconium 
  • Band width: 5.0 mm
  • Band profile: flat, rounded inner surface
  • Product number: 006-807

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kulta-aika

Luotettavaa palvelua vuodesta 1949

Kulta-Aika on vuonna 1949 perustettu kulta- ja kellosepänliike, olemme kotimainen perheyritys.

Valikoimastamme löydät tunnetut ja laadukkaat kello- ja korubrändit sekä pienemmät kotimaiset koru- ja sormusvalmistajat. Olemme kaikkien myymiemme merkkien virallinen jälleenmyyjä.

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