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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 $1,106 AUD
$777 USD
As of October 29, 2026
Save $15,178 AUD (93%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $16,284 AUD 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 $1,106 to $16,284, a $15,178 spread on the same certified stone. Brilliant Earth lists it at $16,284. 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
Colour
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: $16,284 AUD|Low: $1,203 AUD|High: $16,284 AUD|Avg: $4,328 AUD
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
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 11$1,203 AUD
Retailer 6$1,237 AUD
Retailer 15$1,537 AUD
Retailer 7$2,074 AUD
Retailer 14$2,155 AUD
Retailer 2$2,169 AUD
Retailer 4$2,848 AUD
Retailer 18$3,050 AUD
Retailer 16$3,196 AUD
Retailer 12$3,288 AUD
Retailer 8$4,282 AUD
Retailer 9$4,331 AUD
Retailer 10$5,050 AUD
Retailer 5$5,053 AUD
Retailer 13$5,336 AUD
Retailer 19$6,676 AUD
Retailer 17$7,765 AUD
Retailer 3$9,821 AUD
Brilliant Earth$16,284 AUD

40 data points across 19 retailers

26 retailers$1,106 AUD to $16,284 AUD

A
Cheapest Retailer
-
$1,106 AUD
$777 USD
A
Retailer 2
-
$1,203 AUD
$845 USD
View
A
Retailer 3
-
$1,237 AUD
$869 USD
View
Final sale: no returns
A
Retailer 4
-
$1,282 AUD
$901 USD
View
Retailer 5
-
$1,282 AUD
$901 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$1,537 AUD
$1,080 USD
View
A
Retailer 7
-
$1,749 AUD
HK$9,600 HKD
View
A
Retailer 8
-
$2,074 AUD
$1,457 USD
View
A
Retailer 9
-
$2,155 AUD
€1,442 EUR
View
A
Retailer 10
-
$2,169 AUD
£1,200 GBP
View
A
Retailer 11
-
$2,398 AUD
$1,685 USD
View
A
Retailer 12
-
$2,848 AUD
View
A
Retailer 13
-
$3,050 AUD
$2,143 USD
View
Retailer 14
-
$3,196 AUD
View
Price last confirmed 8 days ago
A
Retailer 15
-
$3,288 AUD
ZAR 37,318 ZAR
View
A
Retailer 16
-
$3,981 AUD
$2,797 USD
View
A
Retailer 17
-
$4,282 AUD
$3,008 USD
View
B+
Retailer 18
-
$4,282 AUD
$3,009 USD
View
A
Retailer 19
-
$4,331 AUD
$3,043 USD
View
B+
Retailer 20
-
$5,050 AUD
SGD 4,794 SGD
View
B+
Retailer 21
-
$5,053 AUD
$3,550 USD
View
B+
Retailer 22
-
$5,336 AUD
£2,952 GBP
View
Retailer 23
-
$6,676 AUD
View
Price last confirmed 21 days ago
Retailer 24
-
$7,765 AUD
$5,455 USD
View
Price last confirmed 8 days ago
B
Retailer 25
-
$9,821 AUD
$6,900 USD
View
Most Expensive
B
Brilliant Earth
19794198Y · Oct 29
$16,284 AUD
$11,440 USD
View
25 more retailers have this diamond
Prices start from $1,106 AUDSave up to $15,178 AUD

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
$1,106 AUD