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Marquise|Lab Grown|IGI

3.78ct F VVS2 Marquise Lab Grown Diamond

ID • F/VVS2 • IGI LG788678061

Certificate IGI LG788678061

Diamond specifications and retailer prices

From $2,581 USD
8 retailers carry this diamond
Most expensive: $4,540 USD at Brilliant Earth
View at Brilliant Earth

About this 3.78ct lab-grown marquise diamond

This 3.78ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG788678061 or 788678061. Listed at 8 retailers. 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

3.78
Carat
F
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788678061
Dimensions15.61 × 8.22 × 5.15 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.61 mm8.22 mm3.78 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788678061
Side View
Table 60.0%Crown 37.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 24
Current: $4,540 USD|Low: $785 USD|High: $7,600 USD|Avg: $2,290 USD|-40.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 23, 2026
Retailer 2$824 USD
Retailer 8$926 USD
Retailer 9$935 USD
Retailer 6$1,035 USD
Retailer 4$1,304 USD
Retailer 11$1,544 USD
Retailer 7$1,710 USD
Retailer 10$2,117 USD
Retailer 5$2,581 USD
Retailer 3$3,835 USD
Brilliant Earth$4,540 USD

9 data points across 11 retailers

8 retailers

B+
Retailer 1
-
$824 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$926 USD
View
Price last confirmed 32 days ago
B+
Retailer 3
-
$1,304 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$1,544 USD
View
Price last confirmed 45 days ago
B
Retailer 5
-
$1,710 USD
View
Price last confirmed 31 days ago
B
Retailer 6
-
$2,117 USD
View
Price last confirmed 33 days ago
B
Retailer 7
-
$2,581 USD
View
Most Expensive
B
Brilliant Earth
21498847Y · Sep 23
$4,540 USD
View
Price last confirmed 8 days ago
7 more retailers have this diamond
Prices start from $2,581 USD

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.

A
3.78ct Marquise
$2,581 USD