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Round|Lab Grown|IGI

1.42ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG490190994

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490190994

Diamond specifications and retailer prices

From $714 USD
As of November 1, 2026
Save $2,556 USD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,270 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.42ct lab-grown round diamond

This 1.42ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490190994 or 490190994. Listed at 11 retailers as of October 29, 2026, with prices from $714 to $3,270, a $2,556 spread on the same certified stone. MOH London lists it at $3,270. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.42
Carat
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490190994
Dimensions7.24 × 7.21 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.24 mm7.21 mm1.42 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG490190994
Side View
Table 54.0%Crown 35.2°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $3,270 USD|Low: $570 USD|High: $3,292 USD|Avg: $1,440 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$714 USD
Retailer 9$799 USD
Retailer 4$810 USD
Retailer 7$828 USD
Retailer 11$852 USD
Retailer 10$1,320 USD
Retailer 8$1,344 USD
Retailer 3$1,853 USD
Retailer 2$1,971 USD
Retailer 5$2,040 USD
MOH London$3,270 USD

43 data points across 11 retailers

11 retailers$714 USD to $3,270 USD

A
Cheapest Retailer
-
$714 USD
A
Retailer 2
-
$777 USD
View
A
Retailer 3
-
$799 USD
View
Final sale: no returns
A
Retailer 4
-
$810 USD
View
A
Retailer 5
-
$828 USD
View
Retailer 6
-
$828 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$1,344 USD
View
B
Retailer 8
-
$1,971 USD
£1,552 GBP
View
B
Retailer 9
-
$2,040 USD
View
B
Retailer 10
-
$2,329 USD
View
Most Expensive
B
MOH London
LG490190994 · Oct 29
$3,270 USD
£2,575 GBP
View
10 more retailers have this diamond
Prices start from $714 USDSave up to $2,556 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
1.42ct Round
$714 USD