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1.81ct Round diamond
IGI Certified

1.81ct Round D VS1 Lab Grown Diamond

Ideal Cut · Excellent Pol/Sym · IGI Certified
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The essentials

Graded, line by line.

1.81
Carat
D
Colour
VS1
Clarity
Ideal
Cut
Excellent
Polish
Excellent
Symmetry
None
Fluorescence
IGI
Lab
7.78 mm
Length
7.83 mm
Width
4.87 mm
Height
0.99
Ratio
TABLE56%DEPTH62.3%CROWN HT—PAVIL DP—CULET
Proportions

The anatomy of this stone.

These proportions place this stone within IGI's Ideal cut grade — the top of the scale.

Table56%
Depth62.3%
Ratio0.99
Cut Tolerance
Excellent proportions

Both measurements sit in the top band — proportioned for maximum brilliance.

Total Depth62.3%Excellent
Good 56–67Very Good 58–64Excellent 60–63
Table56%Excellent
Good 50–67Very Good 52–62Excellent 53–58

IGI assigns this stone ideal overall cut grade.

On the hand

See it, true to size.

Our live size visualiser lets you see this 1.81ct round at actual scale — photographed on a real hand, with carat and skin-tone controls so you can judge presence before you commit.

7.78 × 7.83 × 4.87 mm
Hand for diamond size comparison
Round
Skin Tone
15ct
1.81ct
0.2ct

Round·1.81ct·7.78 × 7.83 × 4.87 mm

Certificate

Verified, independently.

IGI
Independent certification
IGI Grading Report
Report no. LG600379348
About this diamond

This 1.81 carat laboratory-grown round carries an D colour grade — near-colourless, exceptional quality. Graded VS1 clarity by IGI, it's a stone with character that goes well beyond the numbers — ready to be set into something made around it.

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The next step

Every Rêve diamond is set into a bespoke design.

Crafted to your specifications and ready in 2–2.5 weeks. Book a private appointment at our Mayfair showroom, or speak to a specialist online — we'll design something around this stone.

Grading Certificate · IGI
IGI
IGI®
IGI REPORT
Verify at IGI.org
FACSIMILE
Digital representation of the original IGI Report. Security features not reproducible.
IGI NATURAL DIAMOND GRADING REPORT
October 01, 2026
IGI Report NumberLG600379348
Shape and Cutting StyleRound Brilliant
Measurements7.78 - 7.83 x 4.87 mm
Grading Results
Carat Weight1.81 carat
Color GradeD
Clarity GradeVS1
Cut GradeIdeal
Additional Grading Information
PolishExcellent
SymmetryExcellent
FluorescenceNone
Inscription(s): IGI LG600379348
Proportions
Table: 56%
Depth: 62.3%
L/W Ratio: 0.99
Length: 7.78 mm
Width: 7.83 mm
Height: 4.87 mm
Clarity Characteristics
The clarity plot is on the original IGI report. Open the official report for the full diagram.
Grading Scales
IGI
COLOR
SCALE
COLORLESS
D
E
F
NEAR COLORLESS
G
H
I
J
FAINT
K
L
M
VERY LIGHT
N
O
P
Q
R
LIGHT
S
T
U
V
W
X
Y
Z
IGI
CLARITY
SCALE
FLAWLESS
FL
INTERNALLY FLAWLESS
IF
VERY VERY SLIGHTLY INCLUDED
VVS1
VVS2
VERY SLIGHTLY INCLUDED
VS1
VS2
SLIGHTLY INCLUDED
SI1
SI2
INCLUDED
I1
I2
I3
IGI
CUT
SCALE
EXCELLENT
VERY GOOD
GOOD
FAIR
POOR
IGI
Results refer only to this diamond based on data verified by IGI. Not a guarantee. Use "Open in new tab" for the original.
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Diamond Details

1.81ct Round Lab Grown Diamond, D Colour, VS1 Clarity, Ideal Cut
Total Price
£1,210Incl VAT
As low as £109 / month or interest-free.KlarnaClearpay
1.81
Carat
D
Colour
VS1
Clarity
Ideal
Cut
Excellent
Polish
Excellent
Symmetry
7.78 mm
Length
7.83 mm
Width
4.87 mm
Height
56%
Table
62.3%
Depth
None
Fluoresc.
IGI
Lab
0.99
Ratio
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