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Round|Lab Grown|IGI

3.09ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG743594170

Shape and cutting style on the report: Round brilliant

Certificate IGI LG743594170

Diamond specifications and retailer prices

From €751 EUR
$839 USD
As of October 29, 2026
Save €8,263 EUR (92%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €9,014 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743594170 or 743594170. Listed at 28 retailers as of October 29, 2026, with prices from €751 to €9,014, a €8,263 spread on the same certified stone. Brilliant Earth lists it at €9,014. 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743594170
Dimensions9.42 × 9.37 × 5.72 mm
L/W Ratio1.01
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
9.42 mm9.37 mm3.09 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743594170
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €9,014 EUR|Low: €751 EUR|High: €9,014 EUR|Avg: €2,838 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 13
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Retailer 19
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Retailer 21
November 1, 2026
Retailer 3€751 EUR
Retailer 21€817 EUR
Retailer 7€871 EUR
Retailer 16€1,029 EUR
Retailer 6€1,150 EUR
Retailer 12€1,441 EUR
Retailer 2€1,476 EUR
Retailer 15€1,530 EUR
Retailer 17€1,994 EUR
Retailer 8€2,002 EUR
Retailer 13€2,171 EUR
Retailer 18€2,232 EUR
Retailer 4€2,702 EUR
Retailer 9€2,725 EUR
Retailer 10€2,867 EUR
Retailer 19€3,277 EUR
Retailer 14€4,582 EUR
Retailer 5€4,914 EUR
Retailer 11€6,668 EUR
Retailer 20€8,373 EUR
Brilliant Earth€9,014 EUR

34 data points across 21 retailers

28 retailers€751 EUR to €9,014 EUR

A
Cheapest Retailer
-
€751 EUR
$839 USD
A
Retailer 2
-
€817 EUR
$913 USD
View
A
Retailer 3
-
€871 EUR
$973 USD
View
A
Retailer 4
-
€950 EUR
$1,061 USD
View
Final sale: no returns
A
Retailer 5
-
€1,029 EUR
$1,150 USD
View
A
Retailer 6
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€1,135 EUR
$1,268 USD
View
Retailer 7
-
€1,150 EUR
£1,011 GBP
View
Price last confirmed 15 days ago
A
Retailer 8
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€1,226 EUR
HK$10,700 HKD
View
A
Retailer 9
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€1,441 EUR
$1,610 USD
View
A
Retailer 10
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€1,476 EUR
£1,298 GBP
View
A
Retailer 11
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€1,530 EUR
View
A
Retailer 12
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€1,659 EUR
$1,853 USD
View
A
Retailer 13
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€1,994 EUR
A$3,428 AUD
View
A
Retailer 14
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€2,002 EUR
$2,237 USD
View
A
Retailer 15
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€2,171 EUR
A$3,731 AUD
View
A
Retailer 16
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€2,232 EUR
ZAR 40,284 ZAR
View
A
Retailer 17
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€2,458 EUR
$2,746 USD
View
B+
Retailer 18
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€2,702 EUR
$3,019 USD
View
B+
Retailer 19
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€2,725 EUR
$3,044 USD
View
B+
Retailer 20
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€2,867 EUR
$3,203 USD
View
B+
Retailer 21
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€3,277 EUR
£2,883 GBP
View
B+
Retailer 22
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€3,426 EUR
$3,827 USD
View
B+
Retailer 23
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€3,561 EUR
SGD 5,376 SGD
View
Retailer 24
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€4,582 EUR
A$7,876 AUD
View
Price last confirmed 29 days ago
Retailer 25
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€4,914 EUR
$5,490 USD
View
Price last confirmed 14 days ago
B
Retailer 26
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€6,668 EUR
$7,450 USD
View
B
Retailer 27
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€8,373 EUR
$9,354 USD
View
Most Expensive
B
Brilliant Earth
18652381Y · Oct 31
€9,014 EUR
$10,070 USD
View
27 more retailers have this diamond
Prices start from €751 EURSave up to €8,263 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
€751 EUR