Marquise|Lab Grown|IGI

3.78ct E VVS1 Marquise Lab Grown Diamond

ID • E/VVS1 • IGI LG844656594

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844656594

Diamond specifications and retailer prices

From $986 USD
As of October 24, 2026
Save $8,724 USD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,710 USD at Brilliant Earth · As of October 26, 2026
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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG844656594 or 844656594. Listed at 21 retailers as of October 24, 2026, with prices from $986 to $9,710, a $8,724 spread on the same certified stone. Brilliant Earth lists it at $9,710. 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
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844656594
Dimensions16.96 × 7.98 × 4.86 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.96 mm7.98 mm3.78 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844656594
Side View
Table 62.0%Crown 39.4°Girdle: STK-THKPavilion 39°Culet: NoneDepth 60.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 24
Current: $1,225 USD|Low: $915 USD|High: $4,004 USD|Avg: $2,259 USD|-4.7%
Retailer 1
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Retailer 21
October 28, 2026
Retailer 11$915 USD
Retailer 5$986 USD
Retailer 8$1,015 USD
Retailer 19$1,052 USD
Retailer 15$1,224 USD
Retailer 1$1,225 USD
Retailer 3$1,429 USD
Retailer 17$1,505 USD
Retailer 12$1,596 USD
Retailer 16$1,609 USD
Retailer 18$2,340 USD
Retailer 6$2,419 USD
Retailer 13$2,440 USD
Retailer 4$2,750 USD
Retailer 10$2,926 USD
Retailer 20$2,957 USD
Retailer 14$3,415 USD
Retailer 9$3,531 USD
Retailer 21$3,571 USD
Retailer 7$3,654 USD
Retailer 2$3,782 USD

11 data points across 21 retailers

21 retailers$986 USD to $9,710 USD

Retailer 1
-
$915 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$986 USD
View
A
Retailer 3
-
$1,052 USD
View
A
Retailer 4
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$1,224 USD
£964 GBP
View
A
Retailer 5
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$1,225 USD
View
A
Retailer 6
-
$1,429 USD
View
A
Retailer 7
-
$1,505 USD
View
A
Retailer 8
-
$1,596 USD
€1,520 EUR
View
A
Retailer 9
-
$1,609 USD
£1,267 GBP
View
B+
Retailer 10
-
$2,340 USD
View
B+
Retailer 11
-
$2,419 USD
ZAR 39,082 ZAR
View
Retailer 12
-
$2,440 USD
A$3,754 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
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$2,750 USD
View
B+
Retailer 14
-
$2,926 USD
£2,304 GBP
View
B+
Retailer 15
-
$2,957 USD
View
B+
Retailer 16
-
$3,415 USD
View
B+
Retailer 17
-
$3,531 USD
SGD 4,771 SGD
View
B+
Retailer 18
-
$3,571 USD
£2,812 GBP
View
B+
Retailer 19
-
$3,654 USD
View
B+
Retailer 20
-
$3,782 USD
View
Most Expensive
B
Brilliant Earth
22289103A · Oct 26
$9,710 USD
View
20 more retailers have this diamond
Prices start from $986 USDSave up to $8,724 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.78ct Marquise
$986 USD