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Radiant|Lab Grown|IGI

4.50ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG700587978

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

Certificate IGI LG700587978

Diamond specifications and retailer prices

From €931 EUR
As of November 2, 2026
Save €2,234 EUR (71%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €3,165 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.5ct lab-grown radiant diamond

This 4.5ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG700587978 or 700587978. Listed at 8 retailers as of November 2, 2026, with prices from €931 to €3,165, a €2,234 spread on the same certified stone. Brilliant Earth lists it at €3,165. 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

4.50
Carat
F
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700587978
Dimensions11.33 × 7.99 × 5.39 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.33 mm7.99 mm4.50 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700587978
Side View
Table 63.0%Crown 43.9°Girdle: MediumPavilion 29.1°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €3,165 EUR|Low: €452 EUR|High: €6,152 EUR|Avg: €1,784 EUR|-48.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 4€452 EUR
Retailer 7€468 EUR
Retailer 5€646 EUR
Retailer 6€812 EUR
Retailer 8€854 EUR
Retailer 2€931 EUR
Retailer 11€1,170 EUR
Retailer 3€1,695 EUR
Retailer 9€1,929 EUR
Retailer 10€2,737 EUR
Brilliant Earth€3,165 EUR

20 data points across 11 retailers

8 retailers€931 EUR to €3,165 EUR

Retailer 1
-
€419 EUR
$470 USD
Price last confirmed 33 days ago
Retailer 2
-
€469 EUR
$526 USD
View
Price last confirmed 36 days ago
Retailer 3
-
€513 EUR
$575 USD
View
Price last confirmed 36 days ago
B+
Retailer 4
-
€931 EUR
View
Retailer 5
-
€1,669 EUR
$1,872 USD
View
Price last confirmed 33 days ago
Retailer 6
-
€1,929 EUR
£1,704 GBP
View
Price last confirmed 32 days ago
Retailer 7
-
€2,737 EUR
$3,070 USD
View
Price last confirmed 35 days ago
Most Expensive
B
Brilliant Earth
18264475A · Nov 2
€3,165 EUR
$3,550 USD
View
7 more retailers have this diamond
Prices start from €931 EURSave up to €2,234 EUR

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+
4.50ct Radiant
€931 EUR