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Radiant|Lab Grown|IGI

1.00ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG488124311

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

Certificate IGI LG488124311

Diamond specifications and retailer prices

From $1,357 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $1,357 USD at B2C Jewels
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 B2C Jewels

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488124311 or 488124311. Listed at a single retailer as of November 6, 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

1.00
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488124311
Dimensions6.97 × 4.93 × 3.38 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.97 mm4.93 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488124311
Side View
Table 63.5%Crown 35.3°Girdle: MediumPavilion 33.4°Culet: NoneDepth 68.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $1,357 USD|Low: $436 USD|High: $1,701 USD|Avg: $731 USD|-20.2%
B2C Jewels
Retailer 2
Retailer 3
September 23, 2026
Retailer 2$436 USD
Retailer 3$720 USD
B2C Jewels$1,357 USD

8 data points across 3 retailers

1 retailer

B
B2C Jewels
19355334 · Nov 6
$1,357 USD
View

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B
1.00ct Radiant
$1,357 USD