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Marquise|Lab Grown|IGI

3.08ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG737567647

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG737567647

Diamond specifications and retailer prices

From $3,498 AUD
$2,457 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $3,498 AUD at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 3.08ct lab-grown marquise diamond

This 3.08ct 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 LG737567647 or 737567647. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.08
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737567647
Dimensions14.32 × 7.59 × 4.89 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Top View
14.32 mm7.59 mm3.08 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737567647
Side View
Table 58.0%Crown 35°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 64.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $3,498 AUD|Low: $797 AUD|High: $7,175 AUD|Avg: $2,212 AUD|-0.0%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 5$797 AUD
Retailer 10$861 AUD
Retailer 3$940 AUD
Retailer 2$1,107 AUD
Retailer 7$1,256 AUD
Retailer 8$1,332 AUD
Retailer 6$1,552 AUD
Retailer 4$1,799 AUD
Blue Nile$3,498 AUD
Retailer 11$4,019 AUD
Retailer 9$7,175 AUD

2 data points across 11 retailers

1 retailer

B
Blue Nile
28730648 · Oct 31
$3,498 AUD
$2,457 USD
View

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.

B
3.08ct Marquise
$3,498 AUD