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Oval|Lab Grown|IGI

1.51ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG447099069

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447099069

Diamond specifications and retailer prices

From $840 USD
As of October 31, 2026
Save $3,964 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,804 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct 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 LG447099069 or 447099069. Listed at 11 retailers as of October 31, 2026, with prices from $840 to $4,804, a $3,964 spread on the same certified stone. MOH London lists it at $4,804. 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

1.51
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099069
Dimensions8.95 × 6.69 × 4.00 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.95 mm6.69 mm1.51 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099069
Side View
Table 60.5%Crown 34.8°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 59.8%

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 31
Current: $4,804 USD|Low: $840 USD|High: $4,862 USD|Avg: $2,609 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 2$840 USD
Retailer 3$1,450 USD
Retailer 6$1,624 USD
Retailer 4$1,682 USD
Retailer 7$1,855 USD
Retailer 9$2,286 USD
Retailer 5$2,653 USD
Retailer 8$3,053 USD
MOH London$4,804 USD
Retailer 10$4,816 USD

15 data points across 10 retailers

11 retailers$840 USD to $4,804 USD

A
Cheapest Retailer
-
$840 USD
B+
Retailer 2
-
$1,450 USD
View
B+
Retailer 3
-
$1,578 USD
View
B+
Retailer 4
-
$1,624 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,682 USD
View
Retailer 6
-
$1,682 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$1,855 USD
View
B
Retailer 8
-
$2,653 USD
View
B
Retailer 9
-
$3,053 USD
View
B
Retailer 10
-
$3,153 USD
View
Most Expensive
B
MOH London
LG447099069 · Nov 1
$4,804 USD
£3,783 GBP
View
10 more retailers have this diamond
Prices start from $840 USDSave up to $3,964 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
1.51ct Oval
$840 USD