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Marquise|Lab Grown|IGI

3.06ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG770680607

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG770680607

Diamond specifications and retailer prices

From $1,568 USD
£1,235 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $1,568 USD at Diamond Quarter
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 Diamond Quarter

About this 3.06ct lab-grown marquise diamond

This 3.06ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770680607 or 770680607. Listed at a single retailer as of November 2, 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

3.06
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770680607
Dimensions14.62 × 7.66 × 4.79 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.62 mm7.66 mm3.06 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770680607
Side View
Table 59.0%Crown 35.7°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 62.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $1,568 USD|Low: $465 USD|High: $4,940 USD|Avg: $1,567 USD
Diamond Quarter
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
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Retailer 11
May 3, 2026
Retailer 10$486 USD
Retailer 3$630 USD
Retailer 4$670 USD
Retailer 8$780 USD
Retailer 2$854 USD
Retailer 9$1,050 USD
Retailer 7$1,267 USD
Retailer 11$1,407 USD
Diamond Quarter$1,568 USD
Retailer 5$2,610 USD
Retailer 6$4,940 USD

38 data points across 11 retailers

1 retailer

B
Diamond Quarter
3.06SI1FLG275C07N · Nov 2
$1,568 USD
£1,235 GBP
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
3.06ct Marquise
$1,568 USD