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Marquise|Lab Grown|IGI

3.78ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG813604687

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG813604687

Diamond specifications and retailer prices

From ₹47,855 INR
$504 USD
As of November 1, 2026
Save ₹2,88,268 INR (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: ₹3,36,123 INR at Brilliant Earth · As of November 1, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG813604687 or 813604687. Listed at 4 retailers as of November 1, 2026, with prices from ₹47,855 to ₹3,36,123, a ₹2,88,268 spread on the same certified stone. Brilliant Earth lists it at ₹3,36,123. 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
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813604687
Dimensions16.72 × 8.11 × 4.98 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.72 mm8.11 mm3.78 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813604687
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.4%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: ₹3,36,123 INR|Low: ₹47,285 INR|High: ₹3,46,568 INR|Avg: ₹2,15,984 INR|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3₹47,855 INR
Retailer 2₹90,092 INR
Retailer 4₹3,00,992 INR
Brilliant Earth₹3,36,123 INR

38 data points across 4 retailers

4 retailers₹47,855 INR to ₹3,36,123 INR

A
Cheapest Retailer
-
₹47,855 INR
$504 USD
Final sale: no returns
A
Retailer 2
-
₹90,092 INR
£747 GBP
View
Retailer 3
-
₹3,00,992 INR
$3,170 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
21263694A · Nov 1
₹3,36,123 INR
$3,540 USD
View
3 more retailers have this diamond
Prices start from ₹47,855 INRSave up to ₹2,88,268 INR

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
₹47,855 INR