CaratHunter
Plans
Marquise|Lab Grown|IGI

3.50ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754508870

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754508870

Diamond specifications and retailer prices

From €13,941 EUR
$15,575 USD
As of October 28, 2026
1 retailer carries this diamond
Only listing: €13,941 EUR at Shane Co
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Shane Co

About this 3.5ct lab-grown marquise diamond

This 3.5ct 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 LG754508870 or 754508870. Listed at a single retailer as of October 28, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.50
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508870
Dimensions15.34 × 7.84 mm
L/W Ratio1.96
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
15.34 mm7.84 mm3.50 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508870
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €6,264 EUR|Low: €6,264 EUR|High: €44,592 EUR|Avg: €18,451 EUR|-37.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Shane Co
October 5, 2026
Retailer 1€6,264 EUR
Retailer 9€7,026 EUR
Retailer 11€7,861 EUR
Retailer 10€8,673 EUR
Retailer 7€11,142 EUR
Retailer 2€12,424 EUR
Retailer 4€12,717 EUR
Retailer 8€13,876 EUR
Shane Co€13,941 EUR
Retailer 6€14,223 EUR
Retailer 13€21,024 EUR
Retailer 12€23,415 EUR
Retailer 3€24,785 EUR
Retailer 5€44,160 EUR

52 data points across 14 retailers

1 retailer

B
Shane Co
26I12H3 · Oct 28
€13,941 EUR
$15,575 USD
View

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.

B
3.50ct Marquise
€13,941 EUR