CaratHunter
Plans
Marquise|Lab Grown|IGI

3.00ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG780663620

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663620

Diamond specifications and retailer prices

From €2,967 EUR
$3,315 USD
As of October 31, 2026
Save €15,243 EUR (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €18,211 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3ct lab-grown marquise diamond

This 3ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663620 or 780663620. Listed at 13 retailers as of October 31, 2026, with prices from €2,967 to €18,211, a €15,243 spread on the same certified stone. Blue Nile lists it at €18,211. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.00
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663620
Dimensions14.54 × 7.49 × 4.73 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
14.54 mm7.49 mm3.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663620
Side View
Table 59.0%Crown 36.7°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 63.2%

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: €18,211 EUR|Low: €2,967 EUR|High: €20,127 EUR|Avg: €8,400 EUR|-9.5%
Blue Nile
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
October 31, 2026
Retailer 10€2,967 EUR
Retailer 6€3,073 EUR
Retailer 12€3,647 EUR
Retailer 2€5,502 EUR
Retailer 11€6,409 EUR
Retailer 14€6,422 EUR
Retailer 8€6,847 EUR
Retailer 9€9,019 EUR
Retailer 3€9,592 EUR
Retailer 5€9,703 EUR
Retailer 7€9,723 EUR
Retailer 13€11,224 EUR
Retailer 4€14,867 EUR
Blue Nile€18,211 EUR

41 data points across 14 retailers

13 retailers€2,967 EUR to €18,211 EUR

A
Cheapest Retailer
-
€2,967 EUR
$3,315 USD
A
Retailer 2
-
€3,647 EUR
$4,074 USD
View
B+
Retailer 3
-
€5,502 EUR
£4,840 GBP
View
B+
Retailer 4
-
€6,409 EUR
$7,160 USD
View
B+
Retailer 5
-
€6,422 EUR
$7,175 USD
View
B+
Retailer 6
-
€6,847 EUR
View
B+
Retailer 7
-
€9,019 EUR
£7,934 GBP
View
B
Retailer 8
-
€9,592 EUR
$10,716 USD
View
B
Retailer 9
-
€9,703 EUR
$10,840 USD
View
B
Retailer 10
-
€9,723 EUR
ZAR 175,491 ZAR
View
Retailer 11
-
€11,224 EUR
$12,540 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
€14,867 EUR
$16,610 USD
View
Most Expensive
B
Blue Nile
29977966 · Oct 31
€18,211 EUR
$20,345 USD
View
12 more retailers have this diamond
Prices start from €2,967 EURSave up to €15,243 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
3.00ct Marquise
€2,967 EUR