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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 €355 EUR
HK$3,100 HKD
As of October 30, 2026
Save €1,381 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,736 EUR at Rare Carat · As of October 28, 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 October 28, 2026, with prices from €355 to €1,736, a €1,381 spread on the same certified stone. Rare Carat lists it at €1,736. 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
Color
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: Oct 30
Current: €1,736 EUR|Low: €355 EUR|High: €1,884 EUR|Avg: €887 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
October 30, 2026
Retailer 10€355 EUR
Retailer 4€358 EUR
Retailer 13€387 EUR
Retailer 7€426 EUR
Retailer 9€436 EUR
Retailer 11€440 EUR
Retailer 6€474 EUR
Retailer 12€551 EUR
Retailer 3€969 EUR
Retailer 8€1,022 EUR
Retailer 5€1,191 EUR
Retailer 2€1,522 EUR
Rare Carat€1,736 EUR

41 data points across 13 retailers

13 retailers€355 EUR to €1,736 EUR

A
Cheapest Retailer
-
€355 EUR
HK$3,100 HKD
A
Retailer 2
-
€358 EUR
$400 USD
View
A
Retailer 3
-
€387 EUR
$432 USD
View
A
Retailer 4
-
€426 EUR
View
A
Retailer 5
-
€436 EUR
ZAR 7,866 ZAR
View
A
Retailer 6
-
€440 EUR
$492 USD
View
A
Retailer 7
-
€474 EUR
£417 GBP
View
A
Retailer 8
-
€551 EUR
$616 USD
View
B+
Retailer 9
-
€969 EUR
$1,083 USD
View
B+
Retailer 10
-
€1,022 EUR
£899 GBP
View
B
Retailer 11
-
€1,191 EUR
$1,331 USD
View
B
Retailer 12
-
€1,522 EUR
$1,700 USD
View
Most Expensive
B
Rare Carat
53835 · Oct 28
€1,736 EUR
$1,940 USD
View
12 more retailers have this diamond
Prices start from €355 EURSave up to €1,381 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
€355 EUR