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Oval|Lab Grown|IGI

1.51ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG816615605

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816615605

Diamond specifications and retailer prices

From $393 USD
As of October 29, 2026
Save $3,627 USD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,020 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615605 or 816615605. Listed at 19 retailers as of October 29, 2026, with prices from $393 to $4,020, a $3,627 spread on the same certified stone. Brilliant Earth lists it at $4,020. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615605
Dimensions10.25 × 6.15 × 3.82 mm
L/W Ratio1.67
Girdle conditionFaceted
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
10.25 mm6.15 mm1.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615605
Side View
Table 59.0%Crown 34.7°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.1%

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: Oct 29
Current: $4,020 USD|Low: $388 USD|High: $4,410 USD|Avg: $1,475 USD|+4.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 14$440 USD
Retailer 9$635 USD
Retailer 5$693 USD
Retailer 4$773 USD
Retailer 2$797 USD
Retailer 8$837 USD
Retailer 15$1,048 USD
Retailer 13$1,366 USD
Retailer 11$1,417 USD
Retailer 6$1,442 USD
Retailer 3$1,602 USD
Retailer 12$1,694 USD
Retailer 10$1,905 USD
Retailer 7$3,660 USD
Brilliant Earth$4,020 USD

35 data points across 15 retailers

19 retailers$393 USD to $4,020 USD

A
Cheapest Retailer
-
$393 USD
A
Retailer 2
-
$440 USD
View
A
Retailer 3
-
$440 USD
View
Final sale: no returns
A
Retailer 4
-
$487 USD
View
A
Retailer 5
-
$487 USD
View
A
Retailer 6
-
$635 USD
View
A
Retailer 7
-
$773 USD
View
A
Retailer 8
-
$797 USD
£627 GBP
View
A
Retailer 9
-
$837 USD
ZAR 13,519 ZAR
View
B+
Retailer 10
-
$1,048 USD
View
B+
Retailer 11
-
$1,366 USD
View
B+
Retailer 12
-
$1,417 USD
£1,116 GBP
View
Retailer 13
-
$1,442 USD
SGD 1,949 SGD
View
Price last confirmed 22 days ago
B
Retailer 14
-
$1,565 USD
View
B
Retailer 15
-
$1,602 USD
View
B
Retailer 16
-
$1,694 USD
View
B
Retailer 17
-
$1,905 USD
£1,500 GBP
View
Retailer 18
-
$3,660 USD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
21421317A · Oct 30
$4,020 USD
View
18 more retailers have this diamond
Prices start from $393 USDSave up to $3,627 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
$393 USD