1.5 Carat Marquise Natural Diamonds
MARQUISE 1.50 cts.
Sparkle Factor: 68 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 71679970
MARQUISE 1.50 cts.
Sparkle Factor: 73 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71628953
MARQUISE 1.54 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 70986007
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70785131
MARQUISE 1.70 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78356853
MARQUISE 1.51 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 71184558
MARQUISE 1.51 cts.
Sparkle Factor: 70 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 72239911
MARQUISE 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 73348054
MARQUISE 1.51 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 70618076
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70380280
MARQUISE 1.53 cts.
Sparkle Factor: 67 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 75409042
MARQUISE 1.51 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 77851557
MARQUISE 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 73166824
MARQUISE 1.51 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77856213
MARQUISE 1.50 cts.
Sparkle Factor: 64 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 77846643
MARQUISE 1.51 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 73627873
MARQUISE 1.54 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 70930612
MARQUISE 1.50 cts.
Sparkle Factor: 62 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 71872133
MARQUISE 1.51 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 78600600
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71666501
MARQUISE 1.51 cts.
Sparkle Factor: 76 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70594010
MARQUISE 1.51 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77740748
MARQUISE 1.51 cts.
Sparkle Factor: 70 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 78595861
MARQUISE 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70979007
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72857683
MARQUISE 1.51 cts.
Sparkle Factor: 70 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 76760872
MARQUISE 1.58 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70574777
MARQUISE 1.51 cts.
Sparkle Factor: 68 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 72170130
MARQUISE 1.50 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71465521
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71003440
MARQUISE 1.51 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70526019
MARQUISE 1.51 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 78747922
MARQUISE 1.50 cts.
Sparkle Factor: 70 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 77846769
MARQUISE 1.57 cts.
Sparkle Factor: 62 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 78450058
MARQUISE 1.51 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77848211
MARQUISE 1.50 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71226016
MARQUISE 1.70 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77853755
MARQUISE 1.52 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78613809
MARQUISE 1.51 cts.
Sparkle Factor: 65 %
Colour: G - Very White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 70269227
MARQUISE 1.51 cts.
Sparkle Factor: 61 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 70268993
MARQUISE 1.51 cts.
Sparkle Factor: 65 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 71872119
MARQUISE 1.50 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77850374
MARQUISE 1.50 cts.
Sparkle Factor: 68 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 72855310
MARQUISE 1.50 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79698923
MARQUISE 1.50 cts.
Sparkle Factor: 68 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 71861766
MARQUISE 1.70 cts.
Sparkle Factor: 61 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 77845292
MARQUISE 1.51 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77852320
MARQUISE 1.51 cts.
Sparkle Factor: 68 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 70050271
MARQUISE 1.51 cts.
Sparkle Factor: 64 %
Colour: I - Low White
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 76764666
MARQUISE 1.51 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78611975
MARQUISE 1.50 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 79476020
MARQUISE 1.50 cts.
Sparkle Factor: 70 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 79334747
MARQUISE 1.51 cts.
Sparkle Factor: 63 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 70534384
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71854133
MARQUISE 1.51 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70795743
MARQUISE 1.50 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72399945
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76770189
MARQUISE 1.51 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70320432
MARQUISE 1.55 cts.
Sparkle Factor: 71 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 70001929
MARQUISE 1.50 cts.
Sparkle Factor: 63 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Good
Fluorescence: Very Strong Blue
Diamond ID: 74834889
1.5 carat marquise diamonds: what to expect
A 1.5 carat diamond is a confident step up from one carat, large enough to read clearly as a statement stone. It looks about 14% wider than a 1 carat stone of the same shape and shows around 31% more surface from above, even though it weighs half as much again.
How big is a 1.5 carat marquise diamond?
A 1.5 carat marquise diamond typically measures about 11.3 x 5.9 mm, based on the stones in our stock today. A round diamond of the same weight measures about 7.3 mm across, so the marquise shows more surface from above and looks larger. Carat measures weight, not size, so cut and proportions affect how big a stone looks.
Choosing a 1.5 carat marquise diamond
A ratio of 1.75 to 2.25 gives the classic marquise; both points should line up, and each is protected by a V-shaped claw. Colour and inclusions start to show more at this size, so G or better and VS2 or better are worth considering, particularly in step cuts.
1.5 carat marquise diamond prices
Prices step up again at 1.50 carats, so a stone between 1.50 and 1.60 gives the look of a "carat and a half" for the least premium.
Natural or lab grown?
A natural diamond is formed over billions of years and each one is rare; many buyers value that origin. A lab grown diamond of the same grades costs far less. Today the lowest priced 1.5 carat marquise diamond in our stock is £1,859 natural, against £338 lab grown. Compare 1.5 carat marquise lab grown diamonds.
Other sizes
Compare marquise natural diamonds at 1 carat, 2 carat, 3 carat or 5 carat.
Setting your diamond
Every diamond here can be set in an engagement ring, pendant or earrings made to order in our Bourton-on-the-Water workshop, hallmarked in the UK. Browse engagement rings or design your own. If the stone you want is not listed, our team can source it for you.
Your questions answered
How big is a 1.5 carat marquise diamond?
A 1.5 carat marquise diamond typically measures about 11.3 x 5.9 mm, based on the stones in our stock today. Exact measurements are on each stone's certificate.
How much does a 1.5 carat marquise natural diamond cost?
Today our 1.5 carat marquise natural diamonds range from £1,834 to £33,709, across 1,036 stones. Colour, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 1.5 carat marquise diamond?
A natural diamond is formed over billions of years and each one is rare; many buyers value that origin. A lab grown diamond of the same grades costs far less. Today the lowest priced 1.5 carat marquise diamond in our stock is £1,859 natural, against £338 lab grown. Both are graded on the same 4Cs and come with a certificate.
What colour and clarity should a 1.5 carat marquise diamond be?
Colour and inclusions start to show more at this size, so G or better and VS2 or better are worth considering, particularly in step cuts.