Radiant|Lab Grown|IGI

3.06ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG680510755

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG680510755

Diamond specifications and retailer prices

From $1,287 USD
£1,014 GBP
As of October 28, 2026
1 retailer carries this diamond
Only listing: $1,287 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 radiant diamond

This 3.06ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG680510755 or 680510755. Listed at a single retailer as of October 28, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.06
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.7°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680510755
Dimensions10.06 × 7.08 × 4.83 mm
L/W Ratio1.42
Culet sizePointed
Top View
10.06 mm7.08 mm3.06 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680510755
Side View
Table 66.0%Crown 46.7°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 68.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $612 USD|Low: $246 USD|High: $5,010 USD|Avg: $1,380 USD|-3.6%
Retailer 1
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Retailer 10
August 26, 2026
Retailer 9$246 USD
Retailer 6$555 USD
Retailer 1$612 USD
Retailer 2$632 USD
Retailer 3$687 USD
Retailer 4$714 USD
Retailer 8$990 USD
Retailer 7$1,069 USD
Retailer 10$2,422 USD
Retailer 5$2,810 USD

79 data points across 10 retailers

1 retailer

B
Diamond Quarter
3.06SI1ELG554161N · Oct 28
$1,287 USD
£1,014 GBP
View

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B
3.06ct Radiant
$1,287 USD