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Emerald|Lab Grown|IGI

3.09ct E SI1 Emerald Lab Grown Diamond

EX • E/SI1 • IGI LG844637780

Shape and cutting style on the report: Emerald cut

Certificate IGI LG844637780

Diamond specifications and retailer prices

From $297 USD
As of October 28, 2026
Save $296 USD (50%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $593 USD at 77 Diamonds · As of October 28, 2026
View at 77 Diamonds

About this 3.09ct lab-grown emerald diamond

This 3.09ct lab-grown emerald 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 LG844637780 or 844637780. Listed at 2 retailers as of October 28, 2026, with prices from $297 to $593, a $296 spread on the same certified stone. 77 Diamonds lists it at $593. 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

3.09
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844637780
Dimensions9.72 × 6.95 × 4.72 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.72 mm6.95 mm3.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844637780
Side View
Table 61.0%Crown 35.3°Girdle: MediumPavilion 40.3°Culet: LargeDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $593 USD|Low: $297 USD|High: $625 USD|Avg: $498 USD|-5.0%
77 Diamonds
Retailer 2
October 28, 2026
Retailer 2$297 USD
77 Diamonds$593 USD

4 data points across 2 retailers

2 retailers$297 USD to $593 USD

A
Cheapest Retailer
-
$297 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
EMTVS3SAEVABT · Oct 28
$593 USD
£467 GBP
View
1 more retailer has this diamond
Prices start from $297 USDSave up to $296 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
3.09ct Emerald
$297 USD