Marquise|Lab Grown

3.70ct D IF Marquise Lab Grown Diamond

ID • D/IF • 747573832

Diamond specifications and retailer prices

From $17,680 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: $17,680 USD at Brilliant Earth
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 Brilliant Earth

About this 3.7ct lab-grown marquise diamond

This 3.7ct 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. Listed at a single retailer as of October 31, 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

3.70
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate747573832
Dimensions15.43 × 8.13 × 5.00 mm
L/W Ratio1.90
Top View
15.43 mm8.13 mm3.70 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Certificate747573832
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $17,680 USD|Low: $17,680 USD|High: $17,680 USD|Avg: $17,680 USD
April 11, 2026
Brilliant Earth$17,680 USD

1 data point across 1 retailer

1 retailer

B
Brilliant Earth
18485809A · Oct 31
$17,680 USD
View

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B
3.70ct Marquise
$17,680 USD