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Oval|Lab Grown|IGI

3.50ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG743529864

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG743529864

Diamond specifications and retailer prices

From $494 USD
As of October 29, 2026
Save $5,306 USD (91%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,800 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.5ct lab-grown oval diamond

This 3.5ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG743529864 or 743529864. Listed at 18 retailers as of October 29, 2026, with prices from $494 to $5,800, a $5,306 spread on the same certified stone. Brilliant Earth lists it at $5,800. 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

3.50
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743529864
Dimensions12.09 × 8.58 × 5.42 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.09 mm8.58 mm3.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743529864
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.2%

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: $5,800 USD|Low: $382 USD|High: $5,800 USD|Avg: $1,570 USD
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
October 30, 2026
Retailer 8$494 USD
Retailer 9$703 USD
Retailer 11$735 USD
Retailer 12$885 USD
Retailer 4$928 USD
Retailer 5$984 USD
Retailer 6$1,016 USD
Retailer 3$1,600 USD
Retailer 7$1,995 USD
Retailer 2$2,131 USD
Retailer 10$2,198 USD
Retailer 13$2,495 USD
Brilliant Earth$5,800 USD

44 data points across 13 retailers

18 retailers$494 USD to $5,800 USD

A
Cheapest Retailer
-
$494 USD
A
Retailer 2
-
$538 USD
View
Retailer 3
-
$595 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$595 USD
View
A
Retailer 5
-
$703 USD
View
Final sale: no returns
A
Retailer 6
-
$735 USD
View
A
Retailer 7
-
$885 USD
€843 EUR
View
B+
Retailer 8
-
$928 USD
View
A
Retailer 9
-
$984 USD
View
A
Retailer 10
-
$1,016 USD
£800 GBP
View
B+
Retailer 11
-
$1,352 USD
View
B+
Retailer 12
-
$1,600 USD
View
B+
Retailer 13
-
$1,913 USD
View
B+
Retailer 14
-
$1,995 USD
View
B
Retailer 15
-
$2,131 USD
View
B+
Retailer 16
-
$2,198 USD
£1,731 GBP
View
B
Retailer 17
-
$2,495 USD
View
Most Expensive
B
Brilliant Earth
16496304A · Oct 29
$5,800 USD
View
17 more retailers have this diamond
Prices start from $494 USDSave up to $5,306 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
3.50ct Oval
$494 USD