Round|Lab Grown|IGI

0.55ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LGLC71145

Certificate IGI LGLC71145

Diamond specifications and retailer prices

From $481 USD
£379 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: $481 USD at Diamond Quarter
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 Diamond Quarter

About this 0.55ct lab-grown round diamond

This 0.55ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LGLC71145 or LC71145. Listed at a single retailer as of November 5, 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

0.55
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGLC71145
Dimensions5.28 × 5.25 × 3.23 mm
L/W Ratio1.01
Top View
5.28 mm5.25 mm0.55 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LGLC71145
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $481 USD|Low: $219 USD|High: $481 USD|Avg: $349 USD|+12.5%
Diamond Quarter
Retailer 2
Retailer 3
February 5, 2026
Retailer 3$219 USD
Retailer 2$460 USD
Diamond Quarter$481 USD

7 data points across 3 retailers

1 retailer

B+
Diamond Quarter
0.55SI1ELG588FC2N · Nov 5
$481 USD
£379 GBP
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B+
0.55ct Round
$481 USD