Product information

Compound of raw materials used in products of precious metals >>
Annual hallmark of golden and silver products 1810-2008 >>
Clarity of diamonds >>
Color scale of diamonds >>

HALLMARKS
 
The manufacturer’s hallmark (Kultakeskus Oy)
Hallmark of the state; the product is manufactured in Finland
Oval hallmark on imported products
Percentage of precious metal (14 carat gold)
Location hallmark (Hämeenlinna), this hallmark is optional
Annual letter hallmark (year of manufacture K8 = 1987)


PERCENTAGE OF GOLD
 
585 (14 carat gold)
750 (18 carat gold)


PERCENTAGE OF SILVER
 
830 (silver used in the Nordic countries)
925 (sterling silver)


PERCENTAGE OF PLATINUM
 
950 (platinum)


Golden products weighting under one gram and silver products weighting under 5 grams can only be hallmarked by name and percentage of precious metals used in product.


MIXTURE OF RAW MATERIALS USED IN PRODUCTS OF PRECIOUS METALS

Most precious metals are too soft to be used in their pure stage in jewellery and other utility articles. Therefore they must be combined with mixture of raw materials which add durability and shape to the alloy in its different stage of product designing.
 
Gold The alloy of 18 carat gold consists of 750/1000 pure gold and 250/1000 mixture of materials in which there are 1/3 silver and 2/3 copper. The color of 18 carat white gold comes from palladium. The alloy consists of 2/3 palladium and the rest is silver. There are 585/1000 pure gold and 415/1000 raw materials in the alloy of 14 carat gold. 14 carat white gold is also used in jewellery making.
 
Platinum Jewellery made of platinum consist of 950/1000 pure platinum and 50/1000 copper. Besides white gold platinum is an excellent setting for diamonds because of its durability.
 
Silver

Copper is used in a mixture of raw materials in silver. The proportions
in the alloy are 830/1000 silver and 925/1000 sterling silver.
 
Alpaca The mixture of alpaca consists of 62-64% copper, 20-24% zinc and 12-18% nickel. The surface of alpaca item is plated with a strong layer of silver.
 
Pewter Pewter items are manufactured of the alloy, which consist of 925/1000 pewter and the mixture of raw materials are copper and antimony.
 
Bronze The name of bronze is used of many different mixtures of copper.
The alloy used in art objects is known as tompakki and art bronze.

ANNUAL HALLMARK OF GOLDEN AND SILVER PRODUCTS 1810-2008
 
A -1810
B -1811
C -1812
A2-1834
A3-1858
A4-1882
A5-1906
B5-1907
C5-1908
D5-1909
E5-1910
F5-1911
G5-1912
H5-1913
I5-1914
K5-1915
L5-1916
M5-1917
N5-1918
O5-1919
P5-1921
Q5-1921
R5-1922		 S5-1923
 T5-1924
U5-1925
V5-1926
X5-1927
Y5-1928
Z5-1929
A6-1930
B6-1931
C6-1932
D6-1933
E6-1934
F6-1935
G6-1936
H6-1937
I6-1938
K6-1439
L6-1940
M6-1941
N6-1942
O6-1943
P6-1944
Q6 1945		 R6-1946
S6-1947
T6-1948
U6-1949
V6-1950
X6-1451
Y6-1952
Z6-1953
A7-1954
B7-1955
C7-1956
D7-1957
E7-1958
F7-1959
G7-1960
H7-1961
I7-1962
K7-1963
L7-1964
M7-1965
N7-1966
O7-1967
P7-1968		 Q7-1969
R7-1970
S7-1971
T7-1972
U7-1973
V7-1974
X7-1975
Y7-1976
Z7-1977
A8-1978
B8-1979
C8-1980
D8-1981
E8-1982
F8-1983
G8-1984
H8-1985
I8-1986
K8-1987
L8-1988
M8-1989
N8-1990
O8-1991		 P8-1992
Q8-1993
R8-1994
S8-1995
T8-1996
U8-1997
V8-1998
X8-1999
Y8-2000
Z8-2001
A9-2002
B9-2003
C9-2004
D9-2005
E9-2006
F9-2007
G9-2008

CLARITY OF DIAMONDS
 
FL Flawless. No inclusions and only
insignificant blemishes under 10x magnification
VVS Very very slightly included. Inclusions are
difficult to locate or see under 10x magnification
VS Very slightly included. Inclusions present less
difficulty to locate or see under 10x magnification
SI Slightly included. Inclusions are readily seen at 10x magnification, although they remain invisible to the unaided eye when the diamond is viewed face up.
P One or more inclusions or their effect can be seen by the unaided eye. Inclusions are easily visible to the unaided eye. Inclusions are so obvious and large that they affect both brilliancy and beauty of the diamond.

COLOR SCALE OF DIAMONDS
Traditional color scale