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Radiant|Lab Grown|IGI

1.00ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG649405924

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

Certificate IGI LG649405924

Diamond specifications and retailer prices

From $230 USD
As of November 1, 2026
Save $725 USD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $955 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG649405924 or 649405924. Listed at 12 retailers as of October 29, 2026, with prices from $230 to $955, a $725 spread on the same certified stone. MOH London lists it at $955. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649405924
Dimensions7.18 × 4.93 × 3.23 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.18 mm4.93 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649405924
Side View
Table 66.0%Crown 43.6°Girdle: MediumPavilion 32.7°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $955 USD|Low: $230 USD|High: $961 USD|Avg: $449 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$230 USD
Retailer 4$339 USD
Retailer 2$360 USD
Retailer 5$428 USD
Retailer 3$450 USD
MOH London$955 USD

42 data points across 6 retailers

12 retailers$230 USD to $955 USD

A
Cheapest Retailer
-
$230 USD
A
Retailer 2
-
$339 USD
View
A
Retailer 3
-
$360 USD
£283 GBP
View
Retailer 4
-
$385 USD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$390 USD
View
Retailer 6
-
$395 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$420 USD
View
B+
Retailer 8
-
$428 USD
View
B+
Retailer 9
-
$450 USD
View
B+
Retailer 10
-
$455 USD
View
B
Retailer 11
-
$819 USD
£645 GBP
View
Most Expensive
B
MOH London
LG649405924 · Oct 29
$955 USD
£752 GBP
View
11 more retailers have this diamond
Prices start from $230 USDSave up to $725 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
1.00ct Radiant
$230 USD