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Marquise|Lab Grown|IGI

3.12ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG839684893

Shape and cutting style on the report: Hexagonal modified brilliant

Certificate IGI LG839684893

Diamond specifications and retailer prices

From €2,367 EUR
$2,655 USD
As of November 1, 2026
Save €10,240 EUR (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €12,607 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3.12ct lab-grown marquise diamond

This 3.12ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839684893 or 839684893. Listed at 8 retailers as of November 1, 2026, with prices from €2,367 to €12,607, a €10,240 spread on the same certified stone. Do Amore Diamonds lists it at €12,607. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.12
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839684893
Dimensions13.89 × 7.19 × 4.68 mm
L/W Ratio1.93
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
13.89 mm7.19 mm3.12 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839684893
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 65.1%

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 1
Current: €12,607 EUR|Low: €2,367 EUR|High: €12,607 EUR|Avg: €5,802 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6€2,367 EUR
Retailer 4€2,496 EUR
Retailer 8€3,709 EUR
Retailer 7€6,879 EUR
Retailer 3€6,949 EUR
Retailer 2€7,840 EUR
Retailer 5€9,056 EUR
Do Amore Diamonds€12,607 EUR

10 data points across 8 retailers

8 retailers€2,367 EUR to €12,607 EUR

A
Cheapest Retailer
-
€2,367 EUR
$2,655 USD
Final sale: no returns
A
Retailer 2
-
€2,496 EUR
$2,800 USD
View
A
Retailer 3
-
€3,709 EUR
$4,160 USD
View
B+
Retailer 4
-
€6,879 EUR
$7,715 USD
View
B+
Retailer 5
-
€6,949 EUR
£6,137 GBP
View
B+
Retailer 6
-
€7,840 EUR
£6,924 GBP
View
B
Retailer 7
-
€9,056 EUR
$10,158 USD
View
Most Expensive
B
Do Amore Diamonds
20-E103545 · Nov 2
€12,607 EUR
$14,140 USD
View
7 more retailers have this diamond
Prices start from €2,367 EURSave up to €10,240 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
3.12ct Marquise
€2,367 EUR