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Marquise|Lab Grown|IGI

3.06ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG843669362

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843669362

Diamond specifications and retailer prices

From £290 GBP
$389 USD
As of October 31, 2026
Save £314 GBP (52%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £604 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 3.06ct lab-grown marquise diamond

This 3.06ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843669362 or 843669362. Listed at 2 retailers as of October 31, 2026, with prices from £290 to £604, a £314 spread on the same certified stone. 77 Diamonds lists it at £604. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843669362
Dimensions14.84 × 7.52 × 4.76 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.84 mm7.52 mm3.06 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843669362
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £604 GBP|Low: £290 GBP|High: £646 GBP|Avg: £526 GBP|-6.5%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2£290 GBP
77 Diamonds£604 GBP

22 data points across 2 retailers

2 retailers£290 GBP to £604 GBP

A
Cheapest Retailer
-
£290 GBP
$389 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
MQTVSDQNBSCA6 · Nov 1
£604 GBP
View
1 more retailer has this diamond
Prices start from £290 GBPSave up to £314 GBP

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
£290 GBP