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Round|Lab Grown|IGI

3.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG700584426

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700584426

Diamond specifications and retailer prices

From €325 EUR
As of November 5, 2026
Save €1,461 EUR (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,786 EUR at Rare Carat · As of November 4, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700584426 or 700584426. Listed at 15 retailers as of November 4, 2026, with prices from €325 to €1,786, a €1,461 spread on the same certified stone. Rare Carat lists it at €1,786. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700584426
Dimensions9.38 × 9.42 × 5.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.38 mm9.42 mm3.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700584426
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
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: Nov 5
Current: €1,786 EUR|Low: €325 EUR|High: €4,722 EUR|Avg: €1,276 EUR|-27.5%
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
Retailer 14
Retailer 15
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Retailer 17
November 6, 2026
Retailer 13€325 EUR
Retailer 7€378 EUR
Retailer 6€404 EUR
Retailer 17€445 EUR
Retailer 10€535 EUR
Retailer 14€539 EUR
Retailer 15€643 EUR
Retailer 4€645 EUR
Retailer 16€685 EUR
Retailer 2€718 EUR
Retailer 3€995 EUR
Retailer 12€1,183 EUR
Retailer 5€1,296 EUR
Retailer 11€1,576 EUR
Rare Carat€1,786 EUR
Retailer 8€4,062 EUR
Retailer 9€4,722 EUR

11 data points across 17 retailers

15 retailers€325 EUR to €1,786 EUR

A
Cheapest Retailer
-
€325 EUR
A
Retailer 2
-
€378 EUR
View
A
Retailer 3
-
€404 EUR
View
A
Retailer 4
-
€445 EUR
View
A
Retailer 5
-
€535 EUR
View
A
Retailer 6
-
€539 EUR
View
Retailer 7
-
€643 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€645 EUR
View
A
Retailer 9
-
€685 EUR
View
A
Retailer 10
-
€718 EUR
View
B+
Retailer 11
-
€995 EUR
View
B+
Retailer 12
-
€1,183 EUR
View
B
Retailer 13
-
€1,296 EUR
View
B
Retailer 14
-
€1,576 EUR
View
Most Expensive
B
Rare Carat
KI4265844KF700 · Nov 4
€1,786 EUR
$2,005 USD
View
14 more retailers have this diamond
Prices start from €325 EURSave up to €1,461 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
€325 EUR