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Round|Lab Grown|IGI

3.09ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG715540666

Shape and cutting style on the report: Round brilliant

Certificate IGI LG715540666

Diamond specifications and retailer prices

From $777 USD
As of October 29, 2026
Save $10,663 USD (93%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $11,440 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG715540666 or 715540666. Listed at 26 retailers as of October 29, 2026, with prices from $777 to $11,440, a $10,663 spread on the same certified stone. Brilliant Earth lists it at $11,440. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG715540666
Dimensions9.45 × 9.37 × 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
9.45 mm9.37 mm3.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG715540666
Side View
Table 58.0%Crown 34.9°Girdle: MediumPavilion 40.8°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 29
Current: $11,440 USD|Low: $845 USD|High: $11,440 USD|Avg: $3,032 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
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Retailer 8
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Retailer 11
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Retailer 14
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Retailer 17
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Retailer 19
October 29, 2026
Retailer 11$845 USD
Retailer 6$869 USD
Retailer 15$1,080 USD
Retailer 7$1,457 USD
Retailer 14$1,514 USD
Retailer 2$1,524 USD
Retailer 4$2,001 USD
Retailer 18$2,143 USD
Retailer 16$2,245 USD
Retailer 12$2,310 USD
Retailer 8$3,009 USD
Retailer 9$3,043 USD
Retailer 10$3,548 USD
Retailer 5$3,550 USD
Retailer 13$3,749 USD
Retailer 19$4,690 USD
Retailer 17$5,455 USD
Retailer 3$6,900 USD
Brilliant Earth$11,440 USD

40 data points across 19 retailers

26 retailers$777 USD to $11,440 USD

A
Cheapest Retailer
-
$777 USD
A
Retailer 2
-
$845 USD
View
A
Retailer 3
-
$869 USD
View
Final sale: no returns
A
Retailer 4
-
$901 USD
View
Retailer 5
-
$901 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$1,080 USD
View
A
Retailer 7
-
$1,229 USD
HK$9,600 HKD
View
A
Retailer 8
-
$1,457 USD
View
A
Retailer 9
-
$1,514 USD
€1,442 EUR
View
A
Retailer 10
-
$1,524 USD
£1,200 GBP
View
A
Retailer 11
-
$1,685 USD
View
A
Retailer 12
-
$2,001 USD
A$3,078 AUD
View
A
Retailer 13
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$2,143 USD
View
Retailer 14
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$2,245 USD
A$3,454 AUD
View
Price last confirmed 8 days ago
A
Retailer 15
-
$2,310 USD
ZAR 37,318 ZAR
View
A
Retailer 16
-
$2,797 USD
View
A
Retailer 17
-
$3,008 USD
View
B+
Retailer 18
-
$3,009 USD
View
A
Retailer 19
-
$3,043 USD
View
B+
Retailer 20
-
$3,548 USD
SGD 4,794 SGD
View
B+
Retailer 21
-
$3,550 USD
View
B+
Retailer 22
-
$3,749 USD
£2,952 GBP
View
Retailer 23
-
$4,690 USD
A$7,216 AUD
View
Price last confirmed 21 days ago
Retailer 24
-
$5,455 USD
View
Price last confirmed 8 days ago
B
Retailer 25
-
$6,900 USD
View
Most Expensive
B
Brilliant Earth
19794198Y · Oct 29
$11,440 USD
View
25 more retailers have this diamond
Prices start from $777 USDSave up to $10,663 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
$777 USD