CaratHunter
Plans
Round|Lab Grown|IGI

1.42ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG757541149

Shape and cutting style on the report: Round brilliant

Certificate IGI LG757541149

Diamond specifications and retailer prices

From $298 USD
As of October 30, 2026
Save $740 USD (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,038 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757541149 or 757541149. Listed at 8 retailers as of October 29, 2026, with prices from $298 to $1,038, a $740 spread on the same certified stone. MOH London lists it at $1,038. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757541149
Dimensions7.18 × 7.14 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.18 mm7.14 mm1.42 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757541149
Side View
Table 56.0%Crown 35.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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 30
Current: $1,038 USD|Low: $298 USD|High: $1,045 USD|Avg: $552 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$298 USD
Retailer 3$380 USD
Retailer 2$396 USD
Retailer 6$477 USD
Retailer 8$496 USD
Retailer 4$565 USD
Retailer 7$764 USD
MOH London$1,038 USD

39 data points across 8 retailers

8 retailers$298 USD to $1,038 USD

B+
Cheapest Retailer
-
$298 USD
A
Retailer 2
-
$380 USD
€362 EUR
View
A
Retailer 3
-
$396 USD
£312 GBP
View
A
Retailer 4
-
$477 USD
View
B+
Retailer 5
-
$496 USD
View
Retailer 6
-
$565 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$764 USD
View
Most Expensive
B
MOH London
LG757541149 · Oct 29
$1,038 USD
£817 GBP
View
7 more retailers have this diamond
Prices start from $298 USDSave up to $740 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
$298 USD