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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 $135 USD
As of October 29, 2026
Save $1,268 USD (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,403 USD 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 $135 to $1,403, a $1,268 spread on the same certified stone. MOH London lists it at $1,403. 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: Oct 29
Current: $1,403 USD|Low: $108 USD|High: $1,412 USD|Avg: $409 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$135 USD
Retailer 8$152 USD
Retailer 6$222 USD
Retailer 2$282 USD
Retailer 3$296 USD
Retailer 9$324 USD
Retailer 7$413 USD
Retailer 4$568 USD
MOH London$1,403 USD

40 data points across 9 retailers

14 retailers$135 USD to $1,403 USD

A
Cheapest Retailer
-
$135 USD
A
Retailer 2
-
$152 USD
View
Final sale: no returns
A
Retailer 3
-
$156 USD
View
B+
Retailer 4
-
$167 USD
View
B+
Retailer 5
-
$167 USD
View
B+
Retailer 6
-
$192 USD
HK$1,500 HKD
View
B+
Retailer 7
-
$222 USD
View
B+
Retailer 8
-
$282 USD
£222 GBP
View
B+
Retailer 9
-
$296 USD
€282 EUR
View
B+
Retailer 10
-
$324 USD
View
B
Retailer 11
-
$413 USD
View
B
Retailer 12
-
$538 USD
View
B
Retailer 13
-
$568 USD
View
Most Expensive
B
MOH London
LG407942412 · Oct 29
$1,403 USD
£1,105 GBP
View
13 more retailers have this diamond
Prices start from $135 USDSave up to $1,268 USD

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
$135 USD