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Oval|Lab Grown|IGI

1.50ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG407912686

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG407912686

Diamond specifications and retailer prices

From $830 USD
As of November 6, 2026
Save $3,324 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,154 USD at MOH London · As of November 3, 2026
View at MOH London

About this 1.5ct lab-grown oval diamond

This 1.5ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407912686 or 407912686. Listed at 11 retailers as of November 3, 2026, with prices from $830 to $4,154, a $3,324 spread on the same certified stone. MOH London lists it at $4,154. 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

1.50
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407912686
Dimensions8.87 × 6.59 × 4.16 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
8.87 mm6.59 mm1.50 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407912686
Side View
Table 57.0%Crown 33.8°Girdle: MED-STKPavilion 42°Culet: NoneDepth 63.1%

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 6
Current: $4,154 USD|Low: $830 USD|High: $4,205 USD|Avg: $1,974 USD|-1.1%
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 1, 2026
Retailer 2$830 USD
Retailer 6$1,115 USD
Retailer 9$1,247 USD
Retailer 7$1,293 USD
Retailer 10$1,293 USD
Retailer 3$1,382 USD
Retailer 5$1,465 USD
Retailer 12$1,850 USD
Retailer 8$2,057 USD
Retailer 11$2,623 USD
Retailer 4$3,702 USD
MOH London$4,154 USD

13 data points across 12 retailers

11 retailers$830 USD to $4,154 USD

A
Cheapest Retailer
-
$830 USD
B+
Retailer 2
-
$1,115 USD
View
B+
Retailer 3
-
$1,213 USD
View
B+
Retailer 4
-
$1,247 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,293 USD
View
Retailer 6
-
$1,293 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$1,465 USD
View
B
Retailer 8
-
$2,057 USD
View
B
Retailer 9
-
$2,424 USD
View
B
Retailer 10
-
$2,623 USD
View
Most Expensive
B
MOH London
LG407912686 · Nov 3
$4,154 USD
£3,271 GBP
View
10 more retailers have this diamond
Prices start from $830 USDSave up to $3,324 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
1.50ct Oval
$830 USD