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Oval|Lab Grown|IGI

3.56ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG640449668

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG640449668

Diamond specifications and retailer prices

From $500 USD
As of October 25, 2026
Save $5,390 USD (92%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,890 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.56ct lab-grown oval diamond

This 3.56ct 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 LG640449668 or 640449668. Listed at 16 retailers as of October 25, 2026, with prices from $500 to $5,890, a $5,390 spread on the same certified stone. Brilliant Earth lists it at $5,890. 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

3.56
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640449668
Dimensions12.75 × 8.66 × 5.27 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.75 mm8.66 mm3.56 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640449668
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

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 25
Current: $5,890 USD|Low: $403 USD|High: $6,070 USD|Avg: $1,375 USD|-3.0%
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
Retailer 16
October 30, 2026
Retailer 6$403 USD
Retailer 4$452 USD
Retailer 7$494 USD
Retailer 10$500 USD
Retailer 14$616 USD
Retailer 15$755 USD
Retailer 16$793 USD
Retailer 2$822 USD
Retailer 13$855 USD
Retailer 5$899 USD
Retailer 8$1,366 USD
Retailer 11$1,403 USD
Retailer 3$1,608 USD
Retailer 9$1,965 USD
Retailer 12$2,510 USD
Brilliant Earth$5,890 USD

37 data points across 16 retailers

16 retailers$500 USD to $5,890 USD

Retailer 1
-
$403 USD
Price last confirmed 36 days ago
Retailer 2
-
$452 USD
View
Price last confirmed 33 days ago
Retailer 3
-
$494 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$500 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$500 USD
View
Retailer 6
-
$616 USD
£485 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
$755 USD
View
B+
Retailer 8
-
$793 USD
View
A
Retailer 9
-
$822 USD
£647 GBP
View
A
Retailer 10
-
$899 USD
View
B+
Retailer 11
-
$1,366 USD
View
B+
Retailer 12
-
$1,403 USD
View
Retailer 13
-
$1,608 USD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
$1,965 USD
£1,547 GBP
View
B
Retailer 15
-
$2,510 USD
View
Most Expensive
B
Brilliant Earth
10761698A · Oct 29
$5,890 USD
View
15 more retailers have this diamond
Prices start from $500 USDSave up to $5,390 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
3.56ct Oval
$500 USD