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Cushion|Lab Grown|IGI

1.00ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG487191900

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG487191900

Diamond specifications and retailer prices

From £989 GBP
$1,327 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £989 GBP at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG487191900 or 487191900. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487191900
Dimensions6.76 × 5.28 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.76 mm5.28 mm1.00 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487191900
Side View
Table 68.0%Crown 33.4°Girdle: THN-MEDPavilion 33.5°Culet: NoneDepth 61.0%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: £989 GBP|Low: £944 GBP|High: £1,616 GBP|Avg: £1,197 GBP|-38.8%
September 23, 2026
B2C Jewels£989 GBP

4 data points across 1 retailer

1 retailer

C
B2C Jewels
19126025 · Nov 2
£989 GBP
$1,327 USD
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C
1.00ct Cushion
£989 GBP