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Radiant|Lab Grown|IGI

3.10ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG658479923

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

Certificate IGI LG658479923

Diamond specifications and retailer prices

From $1,269 USD
£1,000 GBP
As of October 28, 2026
1 retailer carries this diamond
Only listing: $1,269 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 3.1ct lab-grown radiant diamond

This 3.1ct lab-grown radiant 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 LG658479923 or 658479923. 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. 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

3.10
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658479923
Dimensions10.33 × 7.16 × 4.79 mm
L/W Ratio1.44
Culet sizePointed
Top View
10.33 mm7.16 mm3.10 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658479923
Side View
Table 67.0%Crown 43.2°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 66.9%

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: $717 USD|Low: $258 USD|High: $3,140 USD|Avg: $1,073 USD|-20.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
June 15, 2026
Retailer 8$624 USD
Retailer 1$717 USD
Retailer 7$780 USD
Retailer 4$842 USD
Retailer 5$869 USD
Retailer 3$1,051 USD
Retailer 2$1,270 USD
Retailer 6$3,140 USD

72 data points across 8 retailers

1 retailer

B
Diamond Quarter
3.1SI1ELG23B0B9N · Oct 28
$1,269 USD
£1,000 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
3.10ct Radiant
$1,269 USD