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Round|Lab Grown|IGI

3.09ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG815611626

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815611626

Diamond specifications and retailer prices

From $907 AUD
$637 USD
As of October 29, 2026
Save $3,528 AUD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,170 AUD at Rare Carat · As of October 21, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815611626 or 815611626. Listed at 18 retailers as of October 26, 2026, with a 389% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815611626
Dimensions9.39 × 9.43 × 5.72 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 mm9.43 mm3.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815611626
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.8%

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: $8,170 AUD|Low: $907 AUD|High: $8,170 AUD|Avg: $2,646 AUD
Rare Carat
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
October 29, 2026
Retailer 18$907 AUD
Retailer 15$986 AUD
Retailer 6$1,015 AUD
Retailer 17$1,052 AUD
Retailer 9$1,489 AUD
Retailer 7$1,540 AUD
Retailer 12$1,544 AUD
Retailer 2$1,668 AUD
Retailer 14$2,388 AUD
Retailer 11$2,441 AUD
Retailer 16$2,685 AUD
Retailer 3$2,955 AUD
Retailer 8$3,018 AUD
Retailer 4$3,587 AUD
Retailer 10$3,628 AUD
Retailer 5$3,682 AUD
Retailer 13$4,434 AUD
Rare Carat$8,170 AUD

18 data points across 18 retailers

18 retailers$907 AUD to $4,434 AUD

A
Cheapest Retailer
-
$907 AUD
$637 USD
A
Retailer 2
-
$986 AUD
$693 USD
View
A
Retailer 3
-
$1,015 AUD
$713 USD
View
Final sale: no returns
A
Retailer 4
-
$1,052 AUD
$739 USD
View
A
Retailer 5
-
$1,489 AUD
$1,046 USD
View
A
Retailer 6
-
$1,540 AUD
$1,082 USD
View
A
Retailer 7
-
$1,544 AUD
$1,085 USD
View
A
Retailer 8
-
$1,668 AUD
£923 GBP
View
Retailer 9
-
$2,388 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$2,441 AUD
ZAR 27,701 ZAR
View
A
Retailer 11
-
$2,685 AUD
$1,886 USD
View
A
Retailer 12
-
$2,955 AUD
$2,076 USD
View
A
Retailer 13
-
$3,018 AUD
$2,120 USD
View
A
Retailer 14
-
$3,587 AUD
$2,520 USD
View
A
Retailer 15
-
$3,628 AUD
$2,549 USD
View
A
Retailer 16
-
$3,682 AUD
$2,587 USD
View
B+
Retailer 17
-
$4,434 AUD
£2,453 GBP
View
Most Expensive
Rare Carat
KK461_l_815611626 · Oct 21
$8,170 AUD
$5,740 USD
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from $907 AUDSave up to $3,528 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
$907 AUD