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Round|Lab Grown|IGI

3.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG784661357

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784661357

Diamond specifications and retailer prices

From $706 USD
As of November 4, 2026
Save $1,054 USD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,760 USD at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.09ct lab-grown round diamond

This 3.09ct 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 LG784661357 or 784661357. Listed at 7 retailers as of November 4, 2026, with prices from $706 to $1,760, a $1,054 spread on the same certified stone. Rare Carat lists it at $1,760. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784661357
Dimensions9.43 × 9.36 × 5.72 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
9.43 mm9.36 mm3.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784661357
Side View
Table 59.0%Crown 33.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $1,760 USD|Low: $681 USD|High: $1,845 USD|Avg: $1,181 USD|-4.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$706 USD
Retailer 2$781 USD
Retailer 5$832 USD
Retailer 6$959 USD
Retailer 7$1,454 USD
Retailer 3$1,713 USD
Rare Carat$1,760 USD

40 data points across 7 retailers

7 retailers$706 USD to $1,760 USD

B+
Cheapest Retailer
-
$706 USD
A
Retailer 2
-
$781 USD
View
A
Retailer 3
-
$832 USD
View
A
Retailer 4
-
$959 USD
View
B
Retailer 5
-
$1,454 USD
View
B
Retailer 6
-
$1,713 USD
View
Most Expensive
B
Rare Carat
DM1-19_l_784661357 · Nov 4
$1,760 USD
View
6 more retailers have this diamond
Prices start from $706 USDSave up to $1,054 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 Round
$706 USD