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Round|Lab Grown|IGI

3.09ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG729516984

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729516984

Diamond specifications and retailer prices

From $848 AUD
$596 USD
As of October 29, 2026
Save $6,681 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,765 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 LG729516984 or 729516984. Listed at 22 retailers as of October 29, 2026, with a 788% 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 angle33.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729516984
Dimensions9.43 × 9.40 × 5.70 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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 mm9.40 mm3.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729516984
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.5%

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: $7,765 AUD|Low: $948 AUD|High: $7,843 AUD|Avg: $2,552 AUD|-1.0%
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
October 29, 2026
Retailer 5$948 AUD
Retailer 4$949 AUD
Retailer 8$1,238 AUD
Retailer 3$1,440 AUD
Retailer 12$1,616 AUD
Retailer 2$1,725 AUD
Retailer 9$2,467 AUD
Retailer 7$2,521 AUD
Retailer 10$2,609 AUD
Retailer 11$3,356 AUD
Retailer 13$3,949 AUD
Retailer 6$4,599 AUD
Rare Carat$7,765 AUD

41 data points across 13 retailers

22 retailers$848 AUD to $7,530 AUD

A
Cheapest Retailer
-
$848 AUD
$596 USD
A
Retailer 2
-
$948 AUD
$666 USD
View
Final sale: no returns
A
Retailer 3
-
$949 AUD
$667 USD
View
A
Retailer 4
-
$1,052 AUD
$739 USD
View
A
Retailer 5
-
$1,052 AUD
$739 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$1,238 AUD
$870 USD
View
A
Retailer 7
-
$1,366 AUD
HK$7,500 HKD
View
A
Retailer 8
-
$1,440 AUD
$1,012 USD
View
A
Retailer 9
-
$1,616 AUD
$1,135 USD
View
A
Retailer 10
-
$1,725 AUD
£954 GBP
View
A
Retailer 11
-
$2,344 AUD
$1,647 USD
View
A
Retailer 12
-
$2,467 AUD
View
Price last confirmed 8 days ago
A
Retailer 13
-
$2,521 AUD
ZAR 28,614 ZAR
View
A
Retailer 14
-
$2,609 AUD
$1,833 USD
View
A
Retailer 15
-
$3,053 AUD
$2,145 USD
View
A
Retailer 16
-
$3,356 AUD
$2,358 USD
View
A
Retailer 17
-
$3,471 AUD
$2,439 USD
View
A
Retailer 18
-
$3,909 AUD
$2,746 USD
View
A
Retailer 19
-
$3,949 AUD
SGD 3,749 SGD
View
B+
Retailer 20
-
$4,599 AUD
£2,544 GBP
View
B
Retailer 21
-
$7,530 AUD
$5,290 USD
View
Most Expensive
B
Rare Carat
A3-12A · Oct 21
$7,765 AUD
$5,455 USD
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from $848 AUDSave up to $6,681 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
$848 AUD