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Oval|Lab Grown|IGI

1.31ct E IF Oval Lab Grown Diamond

- • E/IF • IGI LG783633642

Certificate IGI LG783633642

Diamond specifications and retailer prices

From $410 USD
Save $2,480 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,890 USD at Brilliant Earth
View at Brilliant Earth

About this 1.31ct lab-grown oval diamond

This 1.31ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG783633642 or 783633642. Listed at 15 retailers, with prices from $410 to $2,890 at Brilliant Earth, a $2,480 spread on the same certified stone. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.31
Carat
E
Color
IF
Clarity
-
Cut

Specifications

Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783633642
Dimensions6.02 × 6.02 × 8.82 mm
L/W Ratio1.00
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
6.02 mm6.02 mm1.31 ctE / IF
OriginLab Grown
Cut-
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783633642
Side View
Table 57.0%Crown 37.6°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $2,890 USD|Low: $168 USD|High: $3,220 USD|Avg: $911 USD|-10.2%
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 1, 2026
Retailer 3$168 USD
Retailer 14$410 USD
Retailer 12$513 USD
Retailer 11$522 USD
Retailer 13$549 USD
Retailer 8$569 USD
Retailer 15$597 USD
Retailer 6$686 USD
Retailer 4$781 USD
Retailer 5$903 USD
Retailer 7$1,039 USD
Retailer 9$1,246 USD
Retailer 2$1,330 USD
Retailer 10$1,930 USD
Brilliant Earth$2,890 USD

39 data points across 15 retailers

15 retailers$410 USD to $2,890 USD

A
Cheapest Retailer
-
$410 USD
A
Retailer 2
-
$476 USD
€453 EUR
View
A
Retailer 3
-
$513 USD
€489 EUR
View
B+
Retailer 4
-
$522 USD
ZAR 8,426 ZAR
View
A
Retailer 5
-
$549 USD
View
A
Retailer 6
-
$570 USD
£449 GBP
View
B+
Retailer 7
-
$597 USD
A$918 AUD
View
B+
Retailer 8
-
$686 USD
View
B+
Retailer 9
-
$797 USD
View
B
Retailer 10
-
$903 USD
View
B+
Retailer 11
-
$1,039 USD
View
B
Retailer 12
-
$1,246 USD
£981 GBP
View
B
Retailer 13
-
$1,330 USD
A$2,046 AUD
View
B
Retailer 14
-
$1,930 USD
View
Most Expensive
B
Brilliant Earth
18312034A · Oct 1
$2,890 USD
View
14 more retailers have this diamond
Prices start from $410 USDSave up to $2,480 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.

A
1.31ct Oval
$410 USD