CaratHunter
Plans
Marquise|Lab Grown|IGI

1.00ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG780663738

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780663738

Diamond specifications and retailer prices

From €351 EUR
As of November 4, 2026
Save €1,370 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,722 EUR at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780663738 or 780663738. Listed at 13 retailers as of November 1, 2026, with prices from €351 to €1,722, a €1,370 spread on the same certified stone. Rare Carat lists it at €1,722. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780663738
Dimensions10.57 × 5.06 × 3.17 mm
L/W Ratio2.09
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
10.57 mm5.06 mm1.00 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780663738
Side View
Table 63.0%Crown 34.5°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 62.6%

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: Nov 4
Current: €1,722 EUR|Low: €351 EUR|High: €1,867 EUR|Avg: €836 EUR|-1.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 10€351 EUR
Retailer 4€355 EUR
Retailer 13€383 EUR
Retailer 9€422 EUR
Retailer 7€434 EUR
Retailer 11€437 EUR
Retailer 6€465 EUR
Retailer 12€547 EUR
Retailer 3€960 EUR
Retailer 2€1,005 EUR
Retailer 5€1,181 EUR
Retailer 8€1,509 EUR
Rare Carat€1,722 EUR

45 data points across 13 retailers

13 retailers€351 EUR to €1,722 EUR

A
Cheapest Retailer
-
€351 EUR
A
Retailer 2
-
€355 EUR
View
A
Retailer 3
-
€383 EUR
View
A
Retailer 4
-
€422 EUR
View
A
Retailer 5
-
€434 EUR
View
A
Retailer 6
-
€437 EUR
View
A
Retailer 7
-
€465 EUR
View
A
Retailer 8
-
€547 EUR
View
B+
Retailer 9
-
€960 EUR
View
B+
Retailer 10
-
€1,005 EUR
View
B
Retailer 11
-
€1,181 EUR
View
B
Retailer 12
-
€1,509 EUR
View
Most Expensive
B
Rare Carat
53835 · Nov 1
€1,722 EUR
$1,940 USD
View
12 more retailers have this diamond
Prices start from €351 EURSave up to €1,370 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
1.00ct Marquise
€351 EUR