Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG617486171

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

Certificate IGI LG617486171

Diamond specifications and retailer prices

From $702 USD
£553 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $702 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 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617486171 or 617486171. Listed at a single retailer as of October 29, 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

1.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617486171
Dimensions7.38 × 4.97 × 3.30 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.38 mm4.97 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617486171
Side View
Table 65.0%Crown 44.4°Girdle: MediumPavilion 33.9°Culet: NoneDepth 66.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $663 USD|Low: $268 USD|High: $1,350 USD|Avg: $587 USD|+0.4%
Retailer 1
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Retailer 10
May 22, 2026
Retailer 6$275 USD
Retailer 9$318 USD
Retailer 5$320 USD
Retailer 2$457 USD
Retailer 7$463 USD
Retailer 8$499 USD
Retailer 10$528 USD
Retailer 3$630 USD
Retailer 1$663 USD
Retailer 4$1,350 USD

60 data points across 10 retailers

1 retailer

B
Diamond Quarter
1.05SI1ELG71D268N · Oct 29
$702 USD
£553 GBP
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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
1.05ct Radiant
$702 USD