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1.42ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG784658967

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784658967

Diamond specifications and retailer prices

From $201 USD
As of October 25, 2026
Save $741 USD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $942 USD at MOH London · As of October 25, 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 LG784658967 or 784658967. Listed at 11 retailers as of October 25, 2026, with prices from $201 to $942, a $741 spread on the same certified stone. MOH London lists it at $942. 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 angle35.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784658967
Dimensions7.17 × 7.12 × 4.40 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
7.17 mm7.12 mm1.42 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784658967
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.6%

Caratlytics Score

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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: Oct 25
Current: $942 USD|Low: $201 USD|High: $953 USD|Avg: $480 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8$201 USD
Retailer 10$270 USD
Retailer 5$336 USD
Retailer 2$355 USD
Retailer 9$460 USD
Retailer 3$467 USD
Retailer 4$489 USD
Retailer 6$555 USD
Retailer 7$690 USD
MOH London$942 USD

43 data points across 10 retailers

11 retailers$201 USD to $942 USD

A
Cheapest Retailer
-
$201 USD
B+
Retailer 2
-
$270 USD
View
A
Retailer 3
-
$336 USD
€320 EUR
View
A
Retailer 4
-
$355 USD
£279 GBP
View
A
Retailer 5
-
$460 USD
View
A
Retailer 6
-
$467 USD
A$718 AUD
View
B+
Retailer 7
-
$489 USD
View
B+
Retailer 8
-
$500 USD
View
Retailer 9
-
$555 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$690 USD
View
Most Expensive
B
MOH London
LG784658967 · Oct 25
$942 USD
£742 GBP
View
10 more retailers have this diamond
Prices start from $201 USDSave up to $741 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
$201 USD