CaratHunter
Plans
Radiant|Lab Grown|IGI

4.05ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG760505199

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

Certificate IGI LG760505199

Diamond specifications and retailer prices

From €354 EUR
$395 USD
As of October 27, 2026
Save €2,502 EUR (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,855 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.05ct lab-grown radiant diamond

This 4.05ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG760505199 or 760505199. Listed at 18 retailers as of October 27, 2026, with prices from €354 to €2,855, a €2,502 spread on the same certified stone. Brilliant Earth lists it at €2,855. 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

4.05
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle30.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760505199
Dimensions10.98 × 7.86 × 5.14 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.98 mm7.86 mm4.05 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760505199
Side View
Table 66.0%Crown 41.6°Girdle: Slightly ThickPavilion 30.7°Culet: NoneDepth 65.4%

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: Oct 27
Current: €2,855 EUR|Low: €354 EUR|High: €3,867 EUR|Avg: €1,114 EUR|-26.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 9€354 EUR
Retailer 16€380 EUR
Retailer 6€395 EUR
Retailer 8€396 EUR
Retailer 3€439 EUR
Retailer 13€662 EUR
Retailer 2€689 EUR
Retailer 12€715 EUR
Retailer 5€814 EUR
Retailer 10€1,023 EUR
Retailer 15€1,036 EUR
Retailer 17€1,409 EUR
Retailer 4€1,441 EUR
Retailer 7€1,549 EUR
Retailer 14€1,714 EUR
Retailer 11€2,117 EUR
Brilliant Earth€2,855 EUR

40 data points across 17 retailers

18 retailers€354 EUR to €2,855 EUR

A
Cheapest Retailer
-
€354 EUR
$395 USD
Retailer 2
-
€380 EUR
£334 GBP
View
Price last confirmed 16 days ago
A
Retailer 3
-
€395 EUR
$441 USD
View
Final sale: no returns
Retailer 4
-
€396 EUR
$442 USD
View
Price last confirmed 8 days ago
Retailer 5
-
€439 EUR
$490 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
€662 EUR
$740 USD
View
A
Retailer 7
-
€689 EUR
View
A
Retailer 8
-
€715 EUR
£629 GBP
View
A
Retailer 9
-
€814 EUR
$909 USD
View
A
Retailer 10
-
€1,023 EUR
$1,143 USD
View
Retailer 11
-
€1,036 EUR
$1,157 USD
View
Price last confirmed 11 days ago
A
Retailer 12
-
€1,038 EUR
$1,160 USD
View
Retailer 13
-
€1,409 EUR
$1,574 USD
View
Price last confirmed 7 days ago
B+
Retailer 14
-
€1,441 EUR
$1,610 USD
View
Retailer 15
-
€1,549 EUR
$1,731 USD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
€1,714 EUR
£1,508 GBP
View
B
Retailer 17
-
€2,117 EUR
$2,365 USD
View
Most Expensive
B
Brilliant Earth
17495324A · Oct 31
€2,855 EUR
$3,190 USD
View
17 more retailers have this diamond
Prices start from €354 EURSave up to €2,502 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.

A
4.05ct Radiant
€354 EUR