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Marquise|Lab Grown|IGI

1.22ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780662423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780662423

Diamond specifications and retailer prices

From €662 EUR
HK$5,800 HKD
As of October 31, 2026
Save €2,031 EUR (75%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,693 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.22ct lab-grown marquise diamond

This 1.22ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780662423 or 780662423. Listed at 13 retailers as of October 31, 2026, with prices from €662 to €2,693, a €2,031 spread on the same certified stone. Brilliant Earth lists it at €2,693. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662423
Dimensions11.11 × 5.63 × 3.51 mm
L/W Ratio1.97
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
11.11 mm5.63 mm1.22 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662423
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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: €2,693 EUR|Low: €662 EUR|High: €2,924 EUR|Avg: €1,330 EUR|-7.9%
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
November 1, 2026
Retailer 10€662 EUR
Retailer 11€757 EUR
Retailer 3€777 EUR
Retailer 4€807 EUR
Retailer 7€878 EUR
Retailer 6€884 EUR
Retailer 8€981 EUR
Retailer 9€1,013 EUR
Retailer 13€1,340 EUR
Retailer 12€1,856 EUR
Retailer 5€2,248 EUR
Retailer 2€2,382 EUR
Brilliant Earth€2,693 EUR

41 data points across 13 retailers

13 retailers€662 EUR to €2,693 EUR

A
Cheapest Retailer
-
€662 EUR
HK$5,800 HKD
B+
Retailer 2
-
€757 EUR
$849 USD
View
B+
Retailer 3
-
€777 EUR
$871 USD
View
B+
Retailer 4
-
€807 EUR
$905 USD
View
B+
Retailer 5
-
€878 EUR
View
B+
Retailer 6
-
€884 EUR
£781 GBP
View
B+
Retailer 7
-
€981 EUR
ZAR 17,768 ZAR
View
B+
Retailer 8
-
€1,013 EUR
A$1,748 AUD
View
Retailer 9
-
€1,340 EUR
$1,503 USD
View
Price last confirmed 9 days ago
B
Retailer 10
-
€1,856 EUR
$2,082 USD
View
B
Retailer 11
-
€2,248 EUR
$2,521 USD
View
B
Retailer 12
-
€2,382 EUR
£2,104 GBP
View
Most Expensive
B
Brilliant Earth
18918925A · Oct 31
€2,693 EUR
$3,020 USD
View
12 more retailers have this diamond
Prices start from €662 EURSave up to €2,031 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
1.22ct Marquise
€662 EUR