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1.55ct G I1 Round Lab Grown Diamond

VG • G/I1 • IGI LG480178419

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480178419

Diamond specifications and retailer prices

From €404 EUR
$453 USD
As of November 1, 2026
Save €544 EUR (57%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €948 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI LG480178419 or 480178419. Listed at 2 retailers as of October 29, 2026, with prices from €404 to €948, a €544 spread on the same certified stone. MOH London lists it at €948. 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

1.55
Carat
G
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480178419
Dimensions7.29 × 7.25 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.29 mm7.25 mm1.55 ctG / I1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480178419
Side View
Table 56.0%Crown 36.1°Girdle: STK-THKPavilion 41°CuletDepth 64.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: €948 EUR|Low: €382 EUR|High: €955 EUR|Avg: €673 EUR|+0.4%
MOH London
Retailer 2
October 29, 2026
Retailer 2€404 EUR
MOH London€948 EUR

10 data points across 2 retailers

2 retailers€404 EUR to €948 EUR

B
Cheapest Retailer
-
€404 EUR
$453 USD
Most Expensive
B
MOH London
LG480178419 · Oct 29
€948 EUR
£837 GBP
View
1 more retailer has this diamond
Prices start from €404 EURSave up to €544 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.55ct Round
€404 EUR