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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 €572 EUR
$637 USD
As of October 29, 2026
Save €2,227 EUR (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €5,157 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 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €5,157 EUR|Low: €572 EUR|High: €5,157 EUR|Avg: €1,670 EUR
Rare Carat
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
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Retailer 14
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Retailer 18
October 29, 2026
Retailer 18€572 EUR
Retailer 15€623 EUR
Retailer 6€641 EUR
Retailer 17€664 EUR
Retailer 9€940 EUR
Retailer 7€972 EUR
Retailer 12€975 EUR
Retailer 2€1,053 EUR
Retailer 14€1,507 EUR
Retailer 11€1,541 EUR
Retailer 16€1,695 EUR
Retailer 3€1,865 EUR
Retailer 8€1,905 EUR
Retailer 4€2,264 EUR
Retailer 10€2,290 EUR
Retailer 5€2,324 EUR
Retailer 13€2,799 EUR
Rare Carat€5,157 EUR

18 data points across 18 retailers

18 retailers€572 EUR to €2,799 EUR

A
Cheapest Retailer
-
€572 EUR
$637 USD
A
Retailer 2
-
€623 EUR
$693 USD
View
A
Retailer 3
-
€641 EUR
$713 USD
View
Final sale: no returns
A
Retailer 4
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€664 EUR
$739 USD
View
A
Retailer 5
-
€940 EUR
$1,046 USD
View
A
Retailer 6
-
€972 EUR
$1,082 USD
View
A
Retailer 7
-
€975 EUR
$1,085 USD
View
A
Retailer 8
-
€1,053 EUR
£923 GBP
View
Retailer 9
-
€1,507 EUR
A$2,581 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
€1,541 EUR
ZAR 27,701 ZAR
View
A
Retailer 11
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€1,695 EUR
$1,886 USD
View
A
Retailer 12
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€1,865 EUR
$2,076 USD
View
A
Retailer 13
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€1,905 EUR
$2,120 USD
View
A
Retailer 14
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€2,264 EUR
$2,520 USD
View
A
Retailer 15
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€2,290 EUR
$2,549 USD
View
A
Retailer 16
-
€2,324 EUR
$2,587 USD
View
B+
Retailer 17
-
€2,799 EUR
£2,453 GBP
View
Most Expensive
Rare Carat
KK461_l_815611626 · Oct 21
€5,157 EUR
$5,740 USD
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from €572 EURSave up to €2,227 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
€572 EUR