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Radiant|Lab Grown|IGI

1.16ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG574321917

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

Certificate IGI LG574321917

Diamond specifications and retailer prices

From $250 USD
As of November 2, 2026
Save $893 USD (78%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,143 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.16ct lab-grown radiant diamond

This 1.16ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG574321917 or 574321917. Listed at 6 retailers as of November 2, 2026, with prices from $250 to $1,143, a $893 spread on the same certified stone. MOH London lists it at $1,143. 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

1.16
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574321917
Dimensions7.42 × 5.07 × 3.49 mm
L/W Ratio1.46
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
7.42 mm5.07 mm1.16 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG574321917
Side View
Table 65.5%Crown 43.6°Girdle: Slightly ThickPavilion 34.4°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $1,143 USD|Low: $124 USD|High: $1,157 USD|Avg: $425 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 6$124 USD
Retailer 3$250 USD
Retailer 4$266 USD
Retailer 2$274 USD
Retailer 7$357 USD
Retailer 5$560 USD
MOH London$1,143 USD

39 data points across 7 retailers

6 retailers$250 USD to $1,143 USD

A
Cheapest Retailer
-
$250 USD
A
Retailer 2
-
$266 USD
View
A
Retailer 3
-
$274 USD
View
A
Retailer 4
-
$357 USD
View
Retailer 5
-
$560 USD
View
Price last confirmed 38 days ago
Most Expensive
B
MOH London
LG574321917 · Nov 2
$1,143 USD
£900 GBP
View
5 more retailers have this diamond
Prices start from $250 USDSave up to $893 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.

A
1.16ct Radiant
$250 USD