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Radiant|Lab Grown|IGI

1.00ct G SI2 Radiant Lab Grown Diamond

G/SI2 • IGI LG577363455

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

Certificate IGI LG577363455

Diamond specifications and retailer prices

From $486 USD
£383 GBP
As of October 29, 2026
Save $35 USD (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $521 USD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included) and certified by IGI LG577363455 or 577363455. Listed at 2 retailers as of October 29, 2026, with a relatively tight 7% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.00
Carat
G
Color
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577363455
Dimensions7.18 × 4.87 × 3.29 mm
L/W Ratio1.47
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
7.18 mm4.87 mm1.00 ctG / SI2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577363455
Side View
Table 63.0%Crown 44°Girdle: MediumPavilion 35.3°Culet: NoneDepth 67.6%

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: $323 USD|Low: $323 USD|High: $486 USD|Avg: $404 USD
Retailer 1
Retailer 2
December 31, 2025
Retailer 1$323 USD
Retailer 2$486 USD

5 data points across 2 retailers

2 retailers$486 USD to $521 USD

B
Cheapest Retailer
-
$486 USD
£383 GBP
Most Expensive
B
Diamond Quarter
1.0SI2GLG552FBDN · Oct 31
$521 USD
£410 GBP
View
1 more retailer has this diamond
Prices start from $486 USDSave up to $35 USD

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
1.00ct Radiant
$486 USD