Carat

0.25 CT 3.00 CT

A carat is the unit used to measure a diamond's weight. One carat equals 200 milligrams or 0.2 grams. Although carat weight and the size of a diamond are related, carat does not directly measure diamond size.

Colour

Faint. Diamonds with a warm yellow colour that is visible to the unaided eye.
Faint. Diamonds with a warm yellow colour that is visible to the unaided eye.
Faint. Diamonds with a warm yellow colour that is visible to the unaided eye.
The last near colourless grade. Diamonds with slight colour that can be detected upon close examination.
Near colourless. Good value diamonds with slight colour that can be detected upon close examination.
Near colourless. Exceptional value diamonds that only have noticeable colour when compared to much higher colour grades.
Highest near colourless grade. Exceptional value diamonds that only have noticeable colour when compared to much higher colour grades.
Colourless. High quality diamonds with miniscule traces of colour that can only be detected by a gemologist.
Colourless. High quality diamonds with miniscule traces of colour that can only be detected by a gemologist.
Completely colourless or icy white. Highest possible colour grade and also the most expensive.

Diamonds are graded on their lack of colour. The more colourless a diamond is the higher the quality.

Price

All of our prices are in US Dollars.

Lab

Certified diamonds are graded by expert gemologists who asses quality characteristics including but not limited to carat, colour, clarity and cut. Diamonds above 0.40 carat on our website are certified by one of the top laboratories: GIA, HRD or IGI.

Cut

Offers very little brilliance and fire, and only reflects a small amount of light.
Lowest recommended cut grade. Showcases less brilliance and fire than higher cut diamonds.
High quality cut grade with only slightly less brilliance and fire than an excellent cut diamond, yet at a lower price.
The highest cut grade. Exhibits optimal brilliance and fire, and reflects the most possible light.

The cut of a diamond refers to how well-proportioned its dimensions are. Higher cut diamonds offer the best light performance.

Clarity

Slightly included 2. Inclusions can be seen under 10x magnification and may be visible to the unaided eye. Slightly more inclusions than SI1.
Slightly included 1. Inclusions can be seen under 10x magnification but may not be very visible to the unaided eye.
Very slightly included 2. Inclusions are difficult to see under 10x magnification. Slightly more inclusions than VS1.
Very slightly included 1. Inclusions are difficult to see under 10x magnification.
Very, very slightly included 2. Inclusions are very difficult to see even under 10x magnification. Slightly more inclusions than VVS1.
Very, very slightly included 1. Inclusions are very difficult to see even under 10x magnification.
Internally flawless. Rare and beautiful diamonds with no internal flaws.

The clarity of a diamond refers to the absence of inclusions which are impurities on and within the stone.

Advanced

Polish

The finishing and smoothness of a diamond’s facets. Grades of very good or higher are recommended for maximum brilliance.

Symmetry

The alignment of a diamond’s facets and angles. Although not as important as cut, low symmetry grades can still affect a diamond’s brilliance.

Depth

The height of a diamond, from the culet to the table. Depth % is the ratio of the height in relation to the girdle diameter.

Table

The flat facet of a diamond when it is face up. Table % is the ratio of the table width in relation to the girdle diameter.

Fluorescence

The glow that a diamond emits when it is exposed to ultraviolet (UV) light. Strong fluorescence can sometimes make a diamond look milky.

Showing  22,140 Certified Diamonds
Shape Carat Colour Clarity Cut Polish Symmetry Lab Price
diamond shape 0.41 K SI2 - Excellent Very Good GIA $317

0.41 Carat Marquise Diamond

K Colour | SI2 Clarity

Stock ID: AM10993

$317

View
Width 3.83
Length 7.11
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64%
  • Table: 58%
  • Fluorescence: Faint
diamond shape 0.40 K SI2 Very Good Excellent Excellent GIA $350

0.40 Carat Round Diamond

K Colour | SI2 Clarity | Very Good Cut

Stock ID: EEE3180

$350

View
Width 4.63
Length 4.61
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 64.2%
  • Table: 57%
  • Fluorescence: Medium
diamond shape 0.40 M SI2 Very Good Excellent Very Good GIA $359

0.40 Carat Round Diamond

M Colour | SI2 Clarity | Very Good Cut

Stock ID: 429198977

$359

View
Width 4.61
Length 4.56
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.3%
  • Table: 56%
  • Fluorescence: Medium
diamond shape 0.40 M SI2 Very Good Very Good Very Good GIA $369

0.40 Carat Round Diamond

M Colour | SI2 Clarity | Very Good Cut

Stock ID: 428905154

$369

View
Width 4.62
Length 4.56
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.9%
  • Table: 59%
  • Fluorescence: Faint
diamond shape 0.40 J SI2 - Excellent Very Good GIA $370

0.40 Carat Marquise Diamond

J Colour | SI2 Clarity

Stock ID: AM18125

$370

View
Width 3.9
Length 7.04
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 63.7%
  • Table: 55%
  • Fluorescence: Medium
diamond shape 0.41 K SI2 Very Good Very Good Very Good GIA $374

0.41 Carat Round Diamond

K Colour | SI2 Clarity | Very Good Cut

Stock ID: EEE1123

$374

View
Width 4.73
Length 4.7
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 62.7%
  • Table: 63%
  • Fluorescence: Faint
diamond shape 0.40 J SI1 - Very Good Very Good GIA $376

0.40 Carat Marquise Diamond

J Colour | SI1 Clarity

Stock ID: AM32900

$376

View
Width 3.81
Length 7.62
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 61.8%
  • Table: 57%
  • Fluorescence: Strong
diamond shape 0.40 K SI1 - Very Good Very Good GIA $381

0.40 Carat Marquise Diamond

K Colour | SI1 Clarity

Stock ID: AM38643

$381

View
Width 3.81
Length 7.61
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 61.8%
  • Table: 58%
  • Fluorescence: Strong
diamond shape 0.41 K SI1 Very Good Excellent Excellent GIA $395

0.41 Carat Round Diamond

K Colour | SI1 Clarity | Very Good Cut

Stock ID: III3791

$395

View
Width 4.65
Length 4.63
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 64%
  • Table: 60%
  • Fluorescence: Medium
diamond shape 0.41 J SI2 - Very Good Good GIA $406

0.41 Carat Emerald Diamond

J Colour | SI2 Clarity

Stock ID: AM7871

$406

View
Width 3.49
Length 5.17
  • Polish: Very Good
  • Symmetry: Good
  • Lab: GIA
  • Depth: 69.4%
  • Table: 68%
  • Fluorescence: None
diamond shape 0.40 L SI2 Very Good Very Good Very Good GIA $410

0.40 Carat Round Diamond

L Colour | SI2 Clarity | Very Good Cut

Stock ID: 428401409

$410

View
Width 4.63
Length 4.58
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 63.7%
  • Table: 57%
  • Fluorescence: Faint
diamond shape 0.41 K SI1 - Excellent Very Good GIA $418

0.41 Carat Oval Diamond

K Colour | SI1 Clarity

Stock ID: AM44754

$418

View
Width 4.01
Length 5.97
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 65.2%
  • Table: 56%
  • Fluorescence: Medium
diamond shape 0.40 M VS1 Very Good Excellent Very Good GIA $419

0.40 Carat Round Diamond

M Colour | VS1 Clarity | Very Good Cut

Stock ID: 429879178

$419

View
Width 4.65
Length 4.6
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.4%
  • Table: 57%
  • Fluorescence: Strong
diamond shape 0.46 M SI1 Very Good Very Good Very Good GIA $419

0.46 Carat Round Diamond

M Colour | SI1 Clarity | Very Good Cut

Stock ID: 426658720

$419

View
Width 4.82
Length 4.76
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.6%
  • Table: 56%
  • Fluorescence: None
diamond shape 0.41 L SI2 Very Good Excellent Excellent GIA $423

0.41 Carat Round Diamond

L Colour | SI2 Clarity | Very Good Cut

Stock ID: 428177546

$423

View
Width 4.68
Length 4.65
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 63.5%
  • Table: 57%
  • Fluorescence: None
diamond shape 0.40 L SI2 Very Good Very Good Very Good GIA $423

0.40 Carat Round Diamond

L Colour | SI2 Clarity | Very Good Cut

Stock ID: 428837850

$423

View
Width 4.61
Length 4.58
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.2%
  • Table: 57%
  • Fluorescence: None
diamond shape 0.40 I SI2 - Very Good Very Good GIA $425

0.40 Carat Marquise Diamond

I Colour | SI2 Clarity

Stock ID: AM5160

$425

View
Width 3.9
Length 7.44
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 60.6%
  • Table: 59%
  • Fluorescence: Faint
diamond shape 0.40 L SI1 Very Good Excellent Very Good GIA $426

0.40 Carat Round Diamond

L Colour | SI1 Clarity | Very Good Cut

Stock ID: 426325837

$426

View
Width 4.61
Length 4.58
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.7%
  • Table: 56%
  • Fluorescence: Faint
diamond shape 0.40 L VS2 Excellent Excellent Very Good IGI $429

0.40 Carat Round Diamond

L Colour | VS2 Clarity | Excellent Cut

Stock ID: SZZ30

$429

View
Width 4.73
Length 4.67
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: IGI
  • Depth: 62.4%
  • Table: 57%
  • Fluorescence: None
diamond shape 0.40 J SI1 - Very Good Very Good GIA $430

0.40 Carat Pear Diamond

J Colour | SI1 Clarity

Stock ID: AM20244

$430

View
Width 3.96
Length 6.56
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 62.9%
  • Table: 57%
  • Fluorescence: Medium
diamond shape 0.40 L SI2 Excellent Excellent Excellent GIA $432

0.40 Carat Round Diamond

L Colour | SI2 Clarity | Excellent Cut

Stock ID: 428895562

$432

View
Width 4.77
Length 4.73
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 61.8%
  • Table: 57%
  • Fluorescence: Faint
diamond shape 0.43 J SI1 - Very Good Very Good GIA $433

0.43 Carat Marquise Diamond

J Colour | SI1 Clarity

Stock ID: AM37775

$433

View
Width 3.88
Length 7.92
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 63.8%
  • Table: 64%
  • Fluorescence: Faint
diamond shape 0.40 H SI2 - Good Very Good GIA $433

0.40 Carat Emerald Diamond

H Colour | SI2 Clarity

Stock ID: AM6564

$433

View
Width 3.72
Length 4.75
  • Polish: Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 67.9%
  • Table: 78%
  • Fluorescence: None
diamond shape 0.40 J SI1 - Excellent Fair GIA $434

0.40 Carat Emerald Diamond

J Colour | SI1 Clarity

Stock ID: AM29759

$434

View
Width 3.55
Length 4.99
  • Polish: Excellent
  • Symmetry: Fair
  • Lab: GIA
  • Depth: 71.2%
  • Table: 62%
  • Fluorescence: None
diamond shape 0.40 L SI1 Very Good Excellent Very Good GIA $437

0.40 Carat Round Diamond

L Colour | SI1 Clarity | Very Good Cut

Stock ID: 427679149

$437

View
Width 4.6
Length 4.57
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.4%
  • Table: 56%
  • Fluorescence: None
diamond shape 0.40 G SI2 - Very Good Very Good GIA $439

0.40 Carat Marquise Diamond

G Colour | SI2 Clarity

Stock ID: AM20932

$439

View
Width 3.87
Length 6.94
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 65.5%
  • Table: 55%
  • Fluorescence:
diamond shape 0.40 H SI2 - Excellent Very Good GIA $441

0.40 Carat Pear Diamond

H Colour | SI2 Clarity

Stock ID: AM13090

$441

View
Width 4.15
Length 6.11
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 63%
  • Table: 54%
  • Fluorescence: None
diamond shape 0.41 M SI1 Very Good Excellent Very Good GIA $443

0.41 Carat Round Diamond

M Colour | SI1 Clarity | Very Good Cut

Stock ID: 429227643

$443

View
Width 4.71
Length 4.65
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 62.9%
  • Table: 58%
  • Fluorescence: None
diamond shape 0.40 J SI1 - Excellent Excellent GIA $443

0.40 Carat Emerald Diamond

J Colour | SI1 Clarity

Stock ID: AM34254

$443

View
Width 3.49
Length 5.4
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 68.7%
  • Table: 68%
  • Fluorescence: Faint
diamond shape 0.40 J SI2 Good Excellent Very Good GIA $446

0.40 Carat Round Diamond

J Colour | SI2 Clarity | Good Cut

Stock ID: HHH3108

$446

View
Width 4.64
Length 4.57
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.1%
  • Table: 58%
  • Fluorescence: Faint
diamond shape 0.40 L SI1 Very Good Excellent Very Good GIA $446

0.40 Carat Round Diamond

L Colour | SI1 Clarity | Very Good Cut

Stock ID: 429062005

$446

View
Width 4.61
Length 4.56
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.5%
  • Table: 59%
  • Fluorescence: None
diamond shape 0.40 J SI1 - Very Good Very Good GIA $448

0.40 Carat Oval Diamond

J Colour | SI1 Clarity

Stock ID: AM15902

$448

View
Width 4.05
Length 5.84
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 62.9%
  • Table: 60%
  • Fluorescence: Faint
diamond shape 0.40 I SI1 - Very Good Very Good GIA $448

0.40 Carat Marquise Diamond

I Colour | SI1 Clarity

Stock ID: AM5594

$448

View
Width 3.86
Length 7.14
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.7%
  • Table: 56%
  • Fluorescence: Medium
diamond shape 0.40 J SI1 - Very Good Very Good GIA $450

0.40 Carat Oval Diamond

J Colour | SI1 Clarity

Stock ID: AM31227

$450

View
Width 4.17
Length 5.56
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 65.3%
  • Table: 58%
  • Fluorescence: Faint
diamond shape 0.42 J SI1 - Very Good Very Good GIA $451

0.42 Carat Pear Diamond

J Colour | SI1 Clarity

Stock ID: AM19033

$451

View
Width 4.27
Length 6.5
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 60.2%
  • Table: 58%
  • Fluorescence: Medium
diamond shape 0.43 L SI2 Excellent Excellent Excellent GIA $452

0.43 Carat Round Diamond

L Colour | SI2 Clarity | Excellent Cut

Stock ID: 429201358

$452

View
Width 4.83
Length 4.79
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 62.3%
  • Table: 59%
  • Fluorescence: Medium
diamond shape 0.40 K VS1 - Excellent Very Good GIA $454

0.40 Carat Cushion Diamond

K Colour | VS1 Clarity

Stock ID: AM38496

$454

View
Width 3.91
Length 4.14
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 75.8%
  • Table: 64%
  • Fluorescence: None
diamond shape 0.40 K VVS1 Very Good Excellent Excellent GIA $454

0.40 Carat Round Diamond

K Colour | VVS1 Clarity | Very Good Cut

Stock ID: JJJ1257

$454

View
Width 4.69
Length 4.67
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 62.4%
  • Table: 59%
  • Fluorescence: Faint
diamond shape 0.40 K SI2 Very Good Excellent Very Good GIA $455

0.40 Carat Round Diamond

K Colour | SI2 Clarity | Very Good Cut

Stock ID: 428710331

$455

View
Width 4.61
Length 4.54
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.9%
  • Table: 56%
  • Fluorescence: Faint
diamond shape 0.40 M VS2 Very Good Excellent Very Good GIA $455

0.40 Carat Round Diamond

M Colour | VS2 Clarity | Very Good Cut

Stock ID: 429184055

$455

View
Width 4.61
Length 4.56
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.6%
  • Table: 59%
  • Fluorescence: None
diamond shape 0.40 I SI1 - Very Good Very Good GIA $455

0.40 Carat Marquise Diamond

I Colour | SI1 Clarity

Stock ID: AM21068

$455

View
Width 4.07
Length 7.03
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 57.9%
  • Table: 54%
  • Fluorescence: Medium
diamond shape 0.40 L SI1 Very Good Excellent Very Good GIA $458

0.40 Carat Round Diamond

L Colour | SI1 Clarity | Very Good Cut

Stock ID: 429429193

$458

View
Width 4.7
Length 4.64
  • Polish: Excellent
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 63.3%
  • Table: 58%
  • Fluorescence: Faint
diamond shape 0.40 I SI2 - Very Good Very Good GIA $458

0.40 Carat Pear Diamond

I Colour | SI2 Clarity

Stock ID: AM43499

$458

View
Width 4.15
Length 6.6
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 59.9%
  • Table: 60%
  • Fluorescence: Faint
diamond shape 0.40 K VVS2 - Excellent Excellent GIA $458

0.40 Carat Pear Diamond

K Colour | VVS2 Clarity

Stock ID: AM32285

$458

View
Width 3.98
Length 6.39
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 64.4%
  • Table: 58%
  • Fluorescence: Faint
diamond shape 0.40 L SI1 Very Good Excellent Excellent GIA $459

0.40 Carat Round Diamond

L Colour | SI1 Clarity | Very Good Cut

Stock ID: 429103274

$459

View
Width 4.62
Length 4.57
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 64.6%
  • Table: 57%
  • Fluorescence: Faint
diamond shape 0.40 L SI2 Excellent Excellent Excellent GIA $462

0.40 Carat Round Diamond

L Colour | SI2 Clarity | Excellent Cut

Stock ID: 429428324

$462

View
Width 4.69
Length 4.67
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 63.1%
  • Table: 58%
  • Fluorescence: None
diamond shape 0.40 I SI1 - Very Good Very Good GIA $462

0.40 Carat Marquise Diamond

I Colour | SI1 Clarity

Stock ID: AM30385

$462

View
Width 3.84
Length 7.22
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 64.2%
  • Table: 59%
  • Fluorescence: Medium
diamond shape 0.43 L SI2 Excellent Excellent Excellent GIA $462

0.43 Carat Round Diamond

L Colour | SI2 Clarity | Excellent Cut

Stock ID: 426592554

$462

View
Width 4.81
Length 4.79
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 63%
  • Table: 56%
  • Fluorescence: None
diamond shape 0.42 J SI1 - Very Good Very Good GIA $464

0.42 Carat Marquise Diamond

J Colour | SI1 Clarity

Stock ID: AM34945

$464

View
Width 3.97
Length 7.64
  • Polish: Very Good
  • Symmetry: Very Good
  • Lab: GIA
  • Depth: 61.1%
  • Table: 59%
  • Fluorescence: Medium
diamond shape 0.40 M VS2 Excellent Excellent Excellent GIA $465

0.40 Carat Round Diamond

M Colour | VS2 Clarity | Excellent Cut

Stock ID: 429076809

$465

View
Width 4.71
Length 4.68
  • Polish: Excellent
  • Symmetry: Excellent
  • Lab: GIA
  • Depth: 62.6%
  • Table: 54%
  • Fluorescence: Faint