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Round|Lab Grown|IGI

3.09ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG815611581

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815611581

Diamond specifications and retailer prices

From $907 AUD
$637 USD
As of October 29, 2026
Save $3,546 AUD (80%) vs most expensive(unlock to see where)
20 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 LG815611581 or 815611581. Listed at 20 retailers as of October 29, 2026, with a 391% 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 angle34.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815611581
Dimensions9.43 × 9.39 × 5.70 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
9.43 mm9.39 mm3.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815611581
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.6%

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: Oct 29
Current: $8,170 AUD|Low: $870 AUD|High: $8,291 AUD|Avg: $2,319 AUD|-1.5%
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 3$907 AUD
Retailer 6$986 AUD
Retailer 9$1,015 AUD
Retailer 4$1,052 AUD
Retailer 18$1,052 AUD
Retailer 12$1,290 AUD
Retailer 10$1,489 AUD
Retailer 17$1,540 AUD
Retailer 14$1,544 AUD
Retailer 2$1,668 AUD
Retailer 15$2,388 AUD
Retailer 13$2,441 AUD
Retailer 16$2,685 AUD
Retailer 5$2,955 AUD
Retailer 8$3,587 AUD
Retailer 7$3,682 AUD
Retailer 11$4,452 AUD
Rare Carat$8,170 AUD

43 data points across 18 retailers

20 retailers$907 AUD to $4,452 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
Price last confirmed 13 days ago
A
Retailer 5
-
$1,052 AUD
$739 USD
View
A
Retailer 6
-
$1,290 AUD
£713 GBP
View
A
Retailer 7
-
$1,489 AUD
$1,046 USD
View
A
Retailer 8
-
$1,540 AUD
$1,082 USD
View
A
Retailer 9
-
$1,544 AUD
$1,085 USD
View
A
Retailer 10
-
$1,668 AUD
£923 GBP
View
A
Retailer 11
-
$2,388 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$2,441 AUD
ZAR 27,701 ZAR
View
A
Retailer 13
-
$2,685 AUD
$1,886 USD
View
A
Retailer 14
-
$2,955 AUD
$2,076 USD
View
A
Retailer 15
-
$3,018 AUD
$2,120 USD
View
A
Retailer 16
-
$3,587 AUD
$2,520 USD
View
A
Retailer 17
-
$3,628 AUD
$2,549 USD
View
A
Retailer 18
-
$3,682 AUD
$2,587 USD
View
B+
Retailer 19
-
$4,452 AUD
£2,463 GBP
View
Most Expensive
B+
Rare Carat
VK 4974_l_815611581 · Oct 21
$8,170 AUD
$5,740 USD
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from $907 AUDSave up to $3,546 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