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Marquise|Lab Grown|IGI

3.78ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG814604097

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG814604097

Diamond specifications and retailer prices

From $3,031 SGD
A$3,648 AUD
As of October 29, 2026
2 retailers carry this diamond
Most expensive: $12,298 SGD at Brilliant Earth · As of October 21, 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 LG814604097 or 814604097. Listed at 2 retailers as of October 29, 2026. 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
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814604097
Dimensions16.85 × 8.08 × 4.96 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.85 mm8.08 mm3.78 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814604097
Side View
Table 61.0%Crown 34.8°Girdle: THN-MEDPavilion 40.1°Culet: NoneDepth 61.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $12,298 SGD|Low: $1,020 SGD|High: $12,682 SGD|Avg: $4,615 SGD|-3.0%
Brilliant Earth
Retailer 2
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October 26, 2026
Retailer 13$1,020 SGD
Retailer 16$1,572 SGD
Retailer 5$1,878 SGD
Retailer 15$2,058 SGD
Retailer 11$2,209 SGD
Retailer 9$2,742 SGD
Retailer 7$2,901 SGD
Retailer 2$3,031 SGD
Retailer 4$3,586 SGD
Retailer 14$3,682 SGD
Retailer 17$4,165 SGD
Retailer 3$4,667 SGD
Retailer 12$5,009 SGD
Retailer 8$6,057 SGD
Retailer 18$7,061 SGD
Retailer 6$7,508 SGD
Retailer 10$11,532 SGD
Brilliant Earth$12,298 SGD

9 data points across 18 retailers

2 retailers

B+
Cheapest Retailer
-
$3,031 SGD
A$3,648 AUD
Most Expensive
Brilliant Earth
20514865A · Oct 21
$12,298 SGD
$9,620 USD
View
Price last confirmed 8 days ago
1 more retailer has this diamond
Prices start from $3,031 SGD

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+
3.78ct Marquise
$3,031 SGD