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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 €679 EUR
$759 USD
As of October 31, 2026
Save €6,275 EUR (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €6,955 EUR at Brilliant Earth · As of October 31, 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 31, 2026, with prices from €679 to €6,955, a €6,275 spread on the same certified stone. Brilliant Earth lists it at €6,955. 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
Color
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

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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 31
Current: €6,955 EUR|Low: €679 EUR|High: €8,387 EUR|Avg: €2,338 EUR|-17.1%
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
November 1, 2026
Retailer 5€679 EUR
Retailer 7€1,061 EUR
Retailer 11€1,061 EUR
Retailer 9€1,124 EUR
Retailer 15€1,147 EUR
Retailer 13€1,562 EUR
Retailer 12€1,591 EUR
Retailer 16€1,636 EUR
Retailer 6€1,787 EUR
Retailer 3€1,911 EUR
Retailer 4€2,279 EUR
Retailer 10€2,430 EUR
Retailer 2€2,435 EUR
Retailer 14€2,984 EUR
Retailer 8€5,165 EUR
Brilliant Earth€6,955 EUR

35 data points across 16 retailers

24 retailers€679 EUR to €6,955 EUR

Retailer 1
-
€627 EUR
$700 USD
Price last confirmed 21 days ago
Retailer 2
-
€645 EUR
$721 USD
View
Price last confirmed 40 days ago
A
Retailer 3
-
€679 EUR
$759 USD
View
Final sale: no returns
Retailer 4
-
€702 EUR
$784 USD
View
Price last confirmed 38 days ago
Retailer 5
-
€727 EUR
$812 USD
View
Price last confirmed 19 days ago
Retailer 6
-
€727 EUR
$812 USD
View
Price last confirmed 29 days ago
Retailer 7
-
€738 EUR
$824 USD
View
Price last confirmed 37 days ago
A
Retailer 8
-
€1,061 EUR
$1,185 USD
View
A
Retailer 9
-
€1,061 EUR
$1,185 USD
View
A
Retailer 10
-
€1,124 EUR
£989 GBP
View
A
Retailer 11
-
€1,147 EUR
View
A
Retailer 12
-
€1,562 EUR
$1,745 USD
View
A
Retailer 13
-
€1,591 EUR
A$2,735 AUD
View
A
Retailer 14
-
€1,636 EUR
ZAR 29,527 ZAR
View
A
Retailer 15
-
€1,787 EUR
$1,996 USD
View
A
Retailer 16
-
€1,911 EUR
$2,135 USD
View
Retailer 17
-
€2,043 EUR
$2,282 USD
View
Price last confirmed 24 days ago
Retailer 18
-
€2,103 EUR
$2,350 USD
View
Price last confirmed 41 days ago
A
Retailer 19
-
€2,279 EUR
$2,546 USD
View
A
Retailer 20
-
€2,430 EUR
$2,715 USD
View
A
Retailer 21
-
€2,435 EUR
$2,721 USD
View
B+
Retailer 22
-
€2,984 EUR
£2,625 GBP
View
Retailer 23
-
€5,165 EUR
$5,770 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21016998A · Oct 31
€6,955 EUR
$7,770 USD
View
23 more retailers have this diamond
Prices start from €679 EURSave up to €6,275 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
€679 EUR