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Round|Lab Grown|IGI

3.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG760523984

Shape and cutting style on the report: Round brilliant

Certificate IGI LG760523984

Diamond specifications and retailer prices

From $424 USD
As of October 29, 2026
Save $2,066 USD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,490 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.5ct lab-grown round diamond

This 3.5ct lab-grown round 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 LG760523984 or 760523984. Listed at 15 retailers as of October 28, 2026, with prices from $424 to $2,490, a $2,066 spread on the same certified stone. Brilliant Earth lists it at $2,490. 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 angle33.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760523984
Dimensions9.88 × 9.94 × 5.77 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.88 mm9.94 mm3.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760523984
Side View
Table 61.0%Crown 33.4°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 58.3%

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: $2,490 USD|Low: $302 USD|High: $2,560 USD|Avg: $1,035 USD|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3$302 USD
Retailer 8$424 USD
Retailer 11$475 USD
Retailer 6$670 USD
Retailer 5$824 USD
Retailer 9$828 USD
Retailer 2$862 USD
Retailer 10$921 USD
Retailer 7$1,273 USD
Retailer 4$1,943 USD
Brilliant Earth$2,490 USD

41 data points across 11 retailers

15 retailers$424 USD to $2,490 USD

A
Cheapest Retailer
-
$424 USD
A
Retailer 2
-
$475 USD
View
Final sale: no returns
A
Retailer 3
-
$475 USD
View
A
Retailer 4
-
$526 USD
View
A
Retailer 5
-
$526 USD
View
A
Retailer 6
-
$670 USD
View
A
Retailer 7
-
$824 USD
€785 EUR
View
B+
Retailer 8
-
$828 USD
View
A
Retailer 9
-
$862 USD
£679 GBP
View
A
Retailer 10
-
$921 USD
View
B+
Retailer 11
-
$1,273 USD
View
B+
Retailer 12
-
$1,358 USD
View
Price last confirmed 43 days ago
B+
Retailer 13
-
$1,691 USD
View
B
Retailer 14
-
$1,943 USD
£1,530 GBP
View
Most Expensive
B
Brilliant Earth
18459169A · Oct 28
$2,490 USD
View
14 more retailers have this diamond
Prices start from $424 USDSave up to $2,066 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 Round
$424 USD