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Round|Lab Grown|IGI

1.80ct I SI2 Round Lab Grown Diamond

VG • I/SI2 • IGI LG400945278

Certificate IGI LG400945278

Diamond specifications and retailer prices

From £1,811 GBP
$2,412 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: £1,811 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 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG400945278 or 400945278. Listed at a single retailer as of October 29, 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

1.80
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG400945278
Dimensions7.68 × 7.73 mm
L/W Ratio1.01
Top View
7.68 mm7.73 mm1.80 ctI / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400945278
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 62.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £1,811 GBP|Low: £1,728 GBP|High: £2,949 GBP|Avg: £2,187 GBP|-38.6%
September 23, 2026
B2C Jewels£1,811 GBP

4 data points across 1 retailer

1 retailer

B
B2C Jewels
19098791 · Oct 29
£1,811 GBP
$2,412 USD
View

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B
1.80ct Round
£1,811 GBP