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Marquise|Lab Grown|IGI

3.06ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG729507535

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG729507535

Diamond specifications and retailer prices

From €309 EUR
As of November 6, 2026
Save €2,337 EUR (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €2,646 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 3.06ct lab-grown marquise diamond

This 3.06ct lab-grown marquise 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 LG729507535 or 729507535. Listed at 19 retailers as of November 4, 2026, with prices from €309 to €2,646, a €2,337 spread on the same certified stone. Brilliant Earth lists it at €2,646. 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

3.06
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729507535
Dimensions15.38 × 7.67 × 4.56 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.38 mm7.67 mm3.06 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729507535
Side View
Table 64.0%Crown 33.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.5%

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: Nov 6
Current: €2,646 EUR|Low: €305 EUR|High: €2,646 EUR|Avg: €971 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 18
November 6, 2026
Retailer 17€309 EUR
Retailer 16€346 EUR
Retailer 4€358 EUR
Retailer 13€383 EUR
Retailer 6€421 EUR
Retailer 15€517 EUR
Retailer 11€519 EUR
Retailer 2€591 EUR
Retailer 3€616 EUR
Retailer 10€670 EUR
Retailer 12€682 EUR
Retailer 9€960 EUR
Retailer 7€1,221 EUR
Retailer 18€1,231 EUR
Retailer 5€1,371 EUR
Retailer 14€1,492 EUR
Retailer 8€2,379 EUR
Brilliant Earth€2,646 EUR

33 data points across 18 retailers

19 retailers€309 EUR to €2,646 EUR

A
Cheapest Retailer
-
€309 EUR
A
Retailer 2
-
€346 EUR
View
Final sale: no returns
A
Retailer 3
-
€358 EUR
View
A
Retailer 4
-
€383 EUR
View
Retailer 5
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€388 EUR
View
Price last confirmed 12 days ago
A
Retailer 6
-
€421 EUR
View
A
Retailer 7
-
€517 EUR
View
A
Retailer 8
-
€519 EUR
View
A
Retailer 9
-
€591 EUR
View
B+
Retailer 10
-
€616 EUR
View
Retailer 11
-
€670 EUR
View
Price last confirmed 11 days ago
A
Retailer 12
-
€682 EUR
View
B+
Retailer 13
-
€960 EUR
View
B+
Retailer 14
-
€1,221 EUR
View
B+
Retailer 15
-
€1,231 EUR
View
B
Retailer 16
-
€1,371 EUR
View
B+
Retailer 17
-
€1,492 EUR
View
Retailer 18
-
€2,379 EUR
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
16747576A · Nov 4
€2,646 EUR
$2,970 USD
View
18 more retailers have this diamond
Prices start from €309 EURSave up to €2,337 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
3.06ct Marquise
€309 EUR