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Marquise|Lab Grown|IGI

1.21ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG790612052

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790612052

Diamond specifications and retailer prices

From €474 EUR
$532 USD
As of November 2, 2026
Save €2,165 EUR (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €2,639 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790612052 or 790612052. Listed at 23 retailers as of November 2, 2026, with prices from €474 to €2,639, a €2,165 spread on the same certified stone. Brilliant Earth lists it at €2,639. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790612052
Dimensions10.72 × 5.61 × 3.54 mm
L/W Ratio1.91
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
10.72 mm5.61 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790612052
Side View
Table 56.0%Crown 34.7°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €2,639 EUR|Low: €456 EUR|High: €2,639 EUR|Avg: €1,209 EUR
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 17€474 EUR
Retailer 9€530 EUR
Retailer 6€531 EUR
Retailer 3€588 EUR
Retailer 14€709 EUR
Retailer 8€773 EUR
Retailer 15€895 EUR
Retailer 11€906 EUR
Retailer 5€911 EUR
Retailer 2€1,015 EUR
Retailer 18€1,413 EUR
Retailer 13€1,435 EUR
Retailer 16€1,519 EUR
Retailer 4€1,549 EUR
Retailer 10€1,712 EUR
Retailer 7€1,861 EUR
Retailer 12€2,457 EUR
Brilliant Earth€2,639 EUR

43 data points across 18 retailers

23 retailers€474 EUR to €2,639 EUR

A
Cheapest Retailer
-
€474 EUR
$532 USD
A
Retailer 2
-
€530 EUR
$595 USD
View
Final sale: no returns
A
Retailer 3
-
€531 EUR
$596 USD
View
Retailer 4
-
€588 EUR
$660 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
€588 EUR
$660 USD
View
A
Retailer 6
-
€639 EUR
HK$5,600 HKD
View
B+
Retailer 7
-
€709 EUR
$795 USD
View
B+
Retailer 8
-
€772 EUR
$866 USD
View
B+
Retailer 9
-
€773 EUR
$867 USD
View
B+
Retailer 10
-
€895 EUR
View
B+
Retailer 11
-
€906 EUR
£800 GBP
View
B+
Retailer 12
-
€911 EUR
$1,022 USD
View
B+
Retailer 13
-
€1,015 EUR
ZAR 18,397 ZAR
View
Retailer 14
-
€1,413 EUR
$1,585 USD
View
Price last confirmed 25 days ago
B
Retailer 15
-
€1,435 EUR
A$2,476 AUD
View
B
Retailer 16
-
€1,519 EUR
$1,704 USD
View
B
Retailer 17
-
€1,549 EUR
$1,737 USD
View
B
Retailer 18
-
€1,712 EUR
£1,512 GBP
View
B
Retailer 19
-
€1,861 EUR
SGD 2,821 SGD
View
B
Retailer 20
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€1,912 EUR
$2,145 USD
View
B
Retailer 21
-
€2,010 EUR
$2,255 USD
View
B
Retailer 22
-
€2,457 EUR
£2,170 GBP
View
Most Expensive
B
Brilliant Earth
19082024A · Nov 2
€2,639 EUR
$2,960 USD
View
22 more retailers have this diamond
Prices start from €474 EURSave up to €2,165 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
1.21ct Marquise
€474 EUR