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Round|Lab Grown|IGI

3.09ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG815677230

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815677230

Diamond specifications and retailer prices

From $1,080 AUD
$759 USD
As of October 29, 2026
Save $11,303 AUD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $12,384 AUD at Brilliant Earth · As of October 28, 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 LG815677230 or 815677230. Listed at 24 retailers as of October 28, 2026, with prices from $1,080 to $12,384, a $11,303 spread on the same certified stone. Brilliant Earth lists it at $12,384. 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 angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677230
Dimensions9.39 × 9.35 × 5.75 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.39 mm9.35 mm3.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677230
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.4%

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: $12,384 AUD|Low: $1,080 AUD|High: $13,337 AUD|Avg: $3,647 AUD|-7.2%
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 29, 2026
Retailer 16$1,080 AUD
Retailer 4$1,687 AUD
Retailer 13$1,737 AUD
Retailer 2$1,788 AUD
Retailer 10$1,823 AUD
Retailer 11$2,602 AUD
Retailer 7$2,606 AUD
Retailer 3$2,842 AUD
Retailer 6$2,845 AUD
Retailer 14$3,039 AUD
Retailer 15$3,624 AUD
Retailer 5$3,865 AUD
Retailer 12$3,873 AUD
Retailer 9$4,745 AUD
Retailer 8$8,213 AUD
Brilliant Earth$12,384 AUD

35 data points across 16 retailers

24 retailers$1,080 AUD to $12,384 AUD

Retailer 1
-
$996 AUD
$700 USD
Price last confirmed 19 days ago
Retailer 2
-
$1,026 AUD
$721 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
$1,080 AUD
$759 USD
View
Final sale: no returns
Retailer 4
-
$1,116 AUD
$784 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$1,156 AUD
$812 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$1,156 AUD
$812 USD
View
Price last confirmed 27 days ago
Retailer 7
-
$1,173 AUD
$824 USD
View
Price last confirmed 34 days ago
A
Retailer 8
-
$1,687 AUD
$1,185 USD
View
A
Retailer 9
-
$1,737 AUD
$1,220 USD
View
A
Retailer 10
-
$1,788 AUD
£989 GBP
View
A
Retailer 11
-
$1,823 AUD
€1,220 EUR
View
A
Retailer 12
-
$2,602 AUD
ZAR 29,527 ZAR
View
Retailer 13
-
$2,606 AUD
View
Price last confirmed 8 days ago
A
Retailer 14
-
$2,842 AUD
$1,996 USD
View
A
Retailer 15
-
$2,845 AUD
$1,999 USD
View
A
Retailer 16
-
$3,039 AUD
$2,135 USD
View
Retailer 17
-
$3,248 AUD
$2,282 USD
View
Price last confirmed 22 days ago
Retailer 18
-
$3,345 AUD
$2,350 USD
View
Price last confirmed 38 days ago
A
Retailer 19
-
$3,624 AUD
$2,546 USD
View
A
Retailer 20
-
$3,865 AUD
$2,715 USD
View
A
Retailer 21
-
$3,873 AUD
$2,721 USD
View
B+
Retailer 22
-
$4,745 AUD
£2,625 GBP
View
Retailer 23
-
$8,213 AUD
$5,770 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
21016998A · Oct 28
$12,384 AUD
$8,700 USD
View
23 more retailers have this diamond
Prices start from $1,080 AUDSave up to $11,303 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
$1,080 AUD