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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 €535 EUR
$596 USD
As of October 29, 2026
Save €4,217 EUR (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €4,901 EUR 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: €4,901 EUR|Low: €598 EUR|High: €4,951 EUR|Avg: €1,611 EUR|-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€598 EUR
Retailer 4€599 EUR
Retailer 8€782 EUR
Retailer 3€909 EUR
Retailer 12€1,020 EUR
Retailer 2€1,089 EUR
Retailer 9€1,557 EUR
Retailer 7€1,591 EUR
Retailer 10€1,647 EUR
Retailer 11€2,119 EUR
Retailer 13€2,493 EUR
Retailer 6€2,903 EUR
Rare Carat€4,901 EUR

41 data points across 13 retailers

22 retailers€535 EUR to €4,753 EUR

A
Cheapest Retailer
-
€535 EUR
$596 USD
A
Retailer 2
-
€598 EUR
$666 USD
View
Final sale: no returns
A
Retailer 3
-
€599 EUR
$667 USD
View
A
Retailer 4
-
€664 EUR
$739 USD
View
A
Retailer 5
-
€664 EUR
$739 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
€782 EUR
$870 USD
View
A
Retailer 7
-
€863 EUR
HK$7,500 HKD
View
A
Retailer 8
-
€909 EUR
$1,012 USD
View
A
Retailer 9
-
€1,020 EUR
$1,135 USD
View
A
Retailer 10
-
€1,089 EUR
£954 GBP
View
A
Retailer 11
-
€1,480 EUR
$1,647 USD
View
A
Retailer 12
-
€1,557 EUR
A$2,666 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
€1,591 EUR
ZAR 28,614 ZAR
View
A
Retailer 14
-
€1,647 EUR
$1,833 USD
View
A
Retailer 15
-
€1,927 EUR
$2,145 USD
View
A
Retailer 16
-
€2,119 EUR
$2,358 USD
View
A
Retailer 17
-
€2,191 EUR
$2,439 USD
View
A
Retailer 18
-
€2,467 EUR
$2,746 USD
View
A
Retailer 19
-
€2,493 EUR
SGD 3,749 SGD
View
B+
Retailer 20
-
€2,903 EUR
£2,544 GBP
View
B
Retailer 21
-
€4,753 EUR
$5,290 USD
View
Most Expensive
B
Rare Carat
A3-12A · Oct 21
€4,901 EUR
$5,455 USD
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from €535 EURSave up to €4,217 EUR

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
€535 EUR