Radiant|Lab Grown|IGI

3.05ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG677570549

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

Certificate IGI LG677570549

Diamond specifications and retailer prices

From $1,283 USD
£1,011 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: $1,283 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 3.05ct lab-grown radiant diamond

This 3.05ct 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 LG677570549 or 677570549. Listed at a single retailer as of November 5, 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

3.05
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677570549
Dimensions10.32 × 7.22 × 4.85 mm
L/W Ratio1.43
Culet sizePointed
Top View
10.32 mm7.22 mm3.05 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677570549
Side View
Table 65.0%Crown 43.2°Girdle: MediumPavilion 35.1°Culet: NoneDepth 67.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $982 USD|Low: $219 USD|High: $5,000 USD|Avg: $1,414 USD|-22.1%
Retailer 1
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Retailer 5
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Retailer 7
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Retailer 9
Retailer 10
August 27, 2026
Retailer 7$219 USD
Retailer 6$550 USD
Retailer 3$610 USD
Retailer 2$631 USD
Retailer 4$686 USD
Retailer 5$711 USD
Retailer 1$982 USD
Retailer 9$1,066 USD
Retailer 10$2,408 USD
Retailer 8$2,790 USD

77 data points across 10 retailers

1 retailer

B
Diamond Quarter
3.05SI1ELG49FD5FN · Nov 5
$1,283 USD
£1,011 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
3.05ct Radiant
$1,283 USD