1.5 Carat Natural Diamonds
ROUND 1.52 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 78331353
CUSHION 1.50 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76551820
OVAL 1.51 cts.
Sparkle Factor: 62 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 78603540
CUSHION 1.51 cts.
Sparkle Factor: 67 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Medium Blue
Diamond ID: 70867794
CUSHION 1.51 cts.
Sparkle Factor: 64 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 71491571
PEARSHAPE 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 72857144
OVAL 1.50 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 72628811
ROUND 1.50 cts.
Sparkle Factor: 62 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 70526047
OVAL 1.52 cts.
Sparkle Factor: 67 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 72639479
ROUND 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70894089
ROUND 1.60 cts.
Sparkle Factor: 62 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Very Good
Fluorescence: Strong Blue
Diamond ID: 70930640
CUSHION 1.50 cts.
Sparkle Factor: 76 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Very Slight Blue
Diamond ID: 70769710
ROUND 1.50 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 78823698
OVAL 1.51 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71889080
CUSHION 1.51 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74260185
ROUND 1.50 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70276245
ROUND 1.50 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Good
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70944766
ROUND 1.50 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 74371499
OVAL 1.51 cts.
Sparkle Factor: 71 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 70107083
OVAL 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: 72286659
CUSHION 1.50 cts.
Sparkle Factor: 66 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 75831930
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
ROUND 1.52 cts.
Sparkle Factor: 71 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 78638079
HEART 1.50 cts.
Sparkle Factor: 74 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71852638
PRINCESS 1.52 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71752594
ROUND 1.69 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79676187
ROUND 1.52 cts.
Sparkle Factor: 67 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 73178181
PEARSHAPE 1.51 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 74908609
ROUND 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 79328839
PEARSHAPE 1.51 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71005523
ROUND 1.52 cts.
Sparkle Factor: 63 %
Colour: H - White
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Very Good
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 74234656
PRINCESS 1.51 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71941181
ROUND 1.53 cts.
Sparkle Factor: 75 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70303229
ROUND 1.50 cts.
Sparkle Factor: 69 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Good
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 70807251
ROUND 1.50 cts.
Sparkle Factor: 80 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70499601
CUSHION 1.50 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 71752118
PEARSHAPE 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 77844816
ROUND 1.50 cts.
Sparkle Factor: 76 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 71759825
PEARSHAPE 1.50 cts.
Sparkle Factor: 67 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 77851088
ROUND 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Very Good
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78315905
ROUND 1.50 cts.
Sparkle Factor: 75 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78448896
CUSHION 1.50 cts.
Sparkle Factor: 78 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70938729
PEARSHAPE 1.50 cts.
Sparkle Factor: 74 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 76496370
ROUND 1.51 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Very Good
Fluorescence: None
Diamond ID: 76099051
ROUND 1.51 cts.
Sparkle Factor: 71 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 74541493
ROUND 1.50 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI1 - Slight Marks
Cut: Good
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 78406835
OVAL 1.50 cts.
Sparkle Factor: 69 %
Colour: I - Low White
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 70866296
ROUND 1.51 cts.
Sparkle Factor: 76 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70268699
ROUND 1.50 cts.
Sparkle Factor: 66 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Excellent
Polish: Excellent
Symmetry: Excellent
Fluorescence: Strong Blue
Diamond ID: 71003510
CUSHION 1.50 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 77976127
ROUND 1.52 cts.
Sparkle Factor: 72 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Very Good
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 70499566
OVAL 1.50 cts.
Sparkle Factor: 73 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Diamond ID: 70322890
PEARSHAPE 1.50 cts.
Sparkle Factor: 66 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: None
Diamond ID: 76825318
PRINCESS 1.50 cts.
Sparkle Factor: 63 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Good
Symmetry: Good
Fluorescence: None
Diamond ID: 71412884
HEART 1.50 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: None
Diamond ID: 78053137
PEARSHAPE 1.50 cts.
Sparkle Factor: 69 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Excellent
Symmetry: Excellent
Fluorescence: Faint Blue
Diamond ID: 70322441
OVAL 1.51 cts.
Sparkle Factor: 68 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Very Good
Fluorescence: Faint Blue
Diamond ID: 71475751
OVAL 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: 71777612
CUSHION 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: 74518323
OVAL 1.51 cts.
Sparkle Factor: 65 %
Colour: J - Slightly Tinted
Clarity: SI2 - Slight Marks
Cut: Fancy
Polish: Very Good
Symmetry: Good
Fluorescence: Faint Blue
Diamond ID: 71003468
1.5 carat 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 diamond in each shape?
Carat measures weight, not size, so the same carat weight looks different in each shape. These are the typical measurements of the 1.5 carat natural diamonds in our stock today:
| Shape | Typical size | Available | From |
|---|---|---|---|
| Round | 7.3 mm | 17,287 | $3,193 |
| Oval | 9.0 x 6.3 mm | 4,990 | $3,201 |
| Cushion | 7.3 x 6.1 mm | 4,770 | $3,197 |
| Square cushion | 6.6 x 6.4 mm | 1,509 | $3,410 |
| Elongated cushion | 7.6 x 5.9 mm | 2,765 | $3,197 |
| Emerald cut | 7.7 x 5.4 mm | 3,396 | $3,830 |
| Princess cut | 6.3 mm | 1,963 | $3,539 |
| Radiant | 7.5 x 5.7 mm | 1,706 | $4,078 |
| Square radiant | 6.4 mm | 91 | $6,116 |
| Elongated radiant | 7.6 x 5.7 mm | 1,595 | $4,078 |
| Asscher cut | 6.3 mm | 1,091 | $4,309 |
| Marquise | 11.3 x 5.9 mm | 1,141 | $3,521 |
| Heart shaped | 7.9 x 6.9 mm | 2,164 | $3,535 |
| Pear shaped | 9.9 x 6.3 mm | 3,251 | $3,226 |
Choosing a 1.5 carat diamond
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. Use the shape filter above, or go straight to round, oval, cushion, square cushion, elongated cushion, emerald cut, princess cut, radiant, square radiant, elongated radiant, Asscher cut, marquise, heart shaped or pear shaped.
1.5 carat 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 diamond in our stock is $3,193 natural, against $539 lab grown. Compare 1.5 carat lab grown diamonds.
Other sizes
Compare 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
Which diamond shape looks biggest at 1.5 carat?
In our current stock the marquise shows the most surface from above at 1.5 carat, measuring about 11.3 x 5.9 mm. Elongated shapes such as marquise, oval and pear generally look larger than a round of the same weight.
How much does a 1.5 carat natural diamond cost?
Today our 1.5 carat natural diamonds range from $3,193 to $95,819, across 41,780 stones. Colour, clarity, cut and the exact carat weight make the difference.
Should I choose a natural or lab grown 1.5 carat 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 diamond in our stock is $3,193 natural, against $539 lab grown. Both are graded on the same 4Cs and come with a certificate.
What colour and clarity should a 1.5 carat 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.
