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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754594815

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754594815

Diamond specifications and retailer prices

From €336 EUR
As of November 4, 2026
Save €1,464 EUR (81%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: €1,800 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.2ct lab-grown marquise diamond

This 1.2ct 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 LG754594815 or 754594815. Listed at 30 retailers as of November 4, 2026, with prices from €336 to €1,800, a €1,464 spread on the same certified stone. Brilliant Earth lists it at €1,800. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594815
Dimensions11.03 × 5.46 × 3.45 mm
L/W Ratio2.02
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
11.03 mm5.46 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594815
Side View
Table 58.0%Crown 36°Girdle: STK-THKPavilion 40°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 4
Current: €1,800 EUR|Low: €336 EUR|High: €2,308 EUR|Avg: €1,099 EUR|-22.0%
Brilliant Earth
Retailer 2
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Retailer 23
November 5, 2026
Retailer 21€336 EUR
Retailer 16€406 EUR
Retailer 19€433 EUR
Retailer 15€486 EUR
Retailer 18€486 EUR
Retailer 3€526 EUR
Retailer 13€656 EUR
Retailer 14€687 EUR
Retailer 2€702 EUR
Retailer 11€778 EUR
Retailer 9€837 EUR
Retailer 7€846 EUR
Retailer 20€913 EUR
Retailer 23€1,091 EUR
Retailer 22€1,195 EUR
Retailer 8€1,233 EUR
Retailer 5€1,248 EUR
Retailer 12€1,359 EUR
Retailer 6€1,420 EUR
Retailer 4€1,451 EUR
Retailer 17€1,485 EUR
Retailer 10€1,592 EUR
Brilliant Earth€1,800 EUR

30 data points across 23 retailers

30 retailers€336 EUR to €1,800 EUR

A
Cheapest Retailer
-
€336 EUR
Final sale: no returns
Retailer 2
-
€406 EUR
View
Price last confirmed 29 days ago
Retailer 3
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€406 EUR
View
Price last confirmed 37 days ago
A
Retailer 4
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€433 EUR
View
Retailer 5
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€455 EUR
View
Price last confirmed 38 days ago
A
Retailer 6
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€486 EUR
View
Retailer 7
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€486 EUR
View
Price last confirmed 29 days ago
Retailer 8
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€486 EUR
View
Price last confirmed 27 days ago
Retailer 9
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€498 EUR
View
Price last confirmed 38 days ago
A
Retailer 10
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€526 EUR
View
A
Retailer 11
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€656 EUR
View
B+
Retailer 12
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€687 EUR
View
B+
Retailer 13
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€702 EUR
View
Retailer 14
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€778 EUR
View
Price last confirmed 8 days ago
Retailer 15
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€796 EUR
View
Price last confirmed 22 days ago
B+
Retailer 16
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€837 EUR
View
B+
Retailer 17
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€846 EUR
View
B+
Retailer 18
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€913 EUR
View
B+
Retailer 19
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€1,091 EUR
View
B+
Retailer 20
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€1,195 EUR
View
B+
Retailer 21
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€1,233 EUR
View
B+
Retailer 22
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€1,248 EUR
View
Retailer 23
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€1,359 EUR
View
Price last confirmed 9 days ago
B
Retailer 24
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€1,420 EUR
View
B
Retailer 25
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€1,451 EUR
View
B
Retailer 26
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€1,485 EUR
View
Retailer 27
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€1,560 EUR
View
Price last confirmed 27 days ago
B
Retailer 28
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€1,592 EUR
View
Retailer 29
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€1,621 EUR
View
Price last confirmed 37 days ago
Most Expensive
B
Brilliant Earth
17981286A · Nov 4
€1,800 EUR
$2,020 USD
View
29 more retailers have this diamond
Prices start from €336 EURSave up to €1,464 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
1.20ct Marquise
€336 EUR