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Round|Lab Grown|IGI

1.00ct E SI2 Round Lab Grown Diamond

VG • E/SI2 • IGI LG407942412

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407942412

Diamond specifications and retailer prices

From €121 EUR
$135 USD
As of November 1, 2026
Save €1,135 EUR (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,256 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407942412 or 407942412. Listed at 14 retailers as of October 29, 2026, with prices from €121 to €1,256, a €1,135 spread on the same certified stone. MOH London lists it at €1,256. 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
E
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407942412
Dimensions6.39 × 6.35 × 3.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.39 mm6.35 mm1.00 ctE / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407942412
Side View
Table 57.0%Crown 32°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,256 EUR|Low: €115 EUR|High: €1,264 EUR|Avg: €328 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7€121 EUR
Retailer 12€136 EUR
Retailer 4€140 EUR
Retailer 3€149 EUR
Retailer 9€149 EUR
Retailer 8€199 EUR
Retailer 2€253 EUR
Retailer 5€264 EUR
Retailer 10€370 EUR
Retailer 11€482 EUR
Retailer 6€508 EUR
MOH London€1,256 EUR

43 data points across 12 retailers

14 retailers€121 EUR to €1,256 EUR

A
Cheapest Retailer
-
€121 EUR
$135 USD
A
Retailer 2
-
€136 EUR
$152 USD
View
Final sale: no returns
A
Retailer 3
-
€140 EUR
$156 USD
View
B+
Retailer 4
-
€149 EUR
$167 USD
View
Retailer 5
-
€149 EUR
$167 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€172 EUR
HK$1,500 HKD
View
B+
Retailer 7
-
€199 EUR
$222 USD
View
B+
Retailer 8
-
€253 EUR
£223 GBP
View
B+
Retailer 9
-
€264 EUR
View
B+
Retailer 10
-
€290 EUR
$324 USD
View
B
Retailer 11
-
€370 EUR
$413 USD
View
B
Retailer 12
-
€482 EUR
$538 USD
View
B
Retailer 13
-
€508 EUR
$568 USD
View
Most Expensive
B
MOH London
LG407942412 · Oct 29
€1,256 EUR
£1,105 GBP
View
13 more retailers have this diamond
Prices start from €121 EURSave up to €1,135 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.

A
1.00ct Round
€121 EUR