Radiant|Lab Grown|IGI

1.00ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG626489530

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

Certificate IGI LG626489530

Diamond specifications and retailer prices

From $248 USD
As of October 30, 2026
Save $1,011 USD (80%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,259 USD at MOH London · As of October 26, 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 LG626489530 or 626489530. Listed at 7 retailers as of October 26, 2026, with prices from $248 to $1,259, a $1,011 spread on the same certified stone. MOH London lists it at $1,259. 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 angle49.8°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626489530
Dimensions7.01 × 4.76 × 3.25 mm
L/W Ratio1.47
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
7.01 mm4.76 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626489530
Side View
Table 68.0%Crown 49.8°Girdle: STK-THKPavilion 33.5°Culet: NoneDepth 68.3%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $1,259 USD|Low: $236 USD|High: $1,264 USD|Avg: $694 USD|+9.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3$248 USD
Retailer 6$482 USD
Retailer 4$591 USD
Retailer 2$598 USD
Retailer 7$896 USD
Retailer 5$1,179 USD
MOH London$1,259 USD

29 data points across 7 retailers

7 retailers$248 USD to $1,259 USD

A
Cheapest Retailer
-
$248 USD
B+
Retailer 2
-
$482 USD
View
B
Retailer 3
-
$591 USD
View
B
Retailer 4
-
$598 USD
£471 GBP
View
B
Retailer 5
-
$896 USD
View
B
Retailer 6
-
$1,179 USD
View
Most Expensive
B
MOH London
LG626489530 · Oct 26
$1,259 USD
£991 GBP
View
6 more retailers have this diamond
Prices start from $248 USDSave up to $1,011 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
$248 USD