CaratHunter
Plans
Oval|Lab Grown|IGI

4.00ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG788680462

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG788680462

Diamond specifications and retailer prices

From €939 EUR
HK$8,200 HKD
As of October 31, 2026
Save €3,617 EUR (79%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €4,556 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG788680462 or 788680462. Listed at 3 retailers as of October 29, 2026, with prices from €939 to €4,556, a €3,617 spread on the same certified stone. Brilliant Earth lists it at €4,556. 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

4.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788680462
Dimensions12.72 × 9.08 × 5.57 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.72 mm9.08 mm4.00 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788680462
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.3%

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 31
Current: €4,556 EUR|Low: €373 EUR|High: €6,113 EUR|Avg: €1,477 EUR|-25.5%
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
October 13, 2026
Retailer 10€373 EUR
Retailer 4€410 EUR
Retailer 7€939 EUR
Retailer 8€950 EUR
Retailer 9€965 EUR
Retailer 5€982 EUR
Retailer 11€1,011 EUR
Retailer 2€1,164 EUR
Retailer 6€1,337 EUR
Retailer 12€1,432 EUR
Retailer 3€2,039 EUR
Retailer 13€2,066 EUR
Brilliant Earth€4,556 EUR

3 data points across 13 retailers

3 retailers€939 EUR to €4,556 EUR

A
Cheapest Retailer
-
€939 EUR
HK$8,200 HKD
Retailer 2
-
€1,164 EUR
$1,300 USD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
21160010A · Oct 29
€4,556 EUR
$5,090 USD
View
2 more retailers have this diamond
Prices start from €939 EURSave up to €3,617 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
4.00ct Oval
€939 EUR