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Marquise|Lab Grown|IGI

1.78ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG836666661

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG836666661

Diamond specifications and retailer prices

From ₹32,698 INR
£271 GBP
As of November 1, 2026
Save ₹1,23,970 INR (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: ₹1,56,668 INR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836666661 or 836666661. Listed at 12 retailers as of October 31, 2026, with prices from ₹32,698 to ₹1,56,668, a ₹1,23,970 spread on the same certified stone. Brilliant Earth lists it at ₹1,56,668. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836666661
Dimensions11.86 × 6.55 × 4.04 mm
L/W Ratio1.81
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.86 mm6.55 mm1.78 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836666661
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.7%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: ₹1,56,668 INR|Low: ₹32,687 INR|High: ₹2,06,991 INR|Avg: ₹81,896 INR|-24.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5₹32,698 INR
Retailer 4₹47,190 INR
Retailer 7₹48,066 INR
Retailer 9₹50,148 INR
Retailer 6₹52,924 INR
Retailer 10₹60,673 INR
Retailer 8₹65,235 INR
Retailer 12₹90,203 INR
Retailer 3₹94,883 INR
Retailer 2₹1,12,145 INR
Retailer 11₹1,13,845 INR
Brilliant Earth₹1,56,668 INR

15 data points across 12 retailers

12 retailers₹32,698 INR to ₹1,56,668 INR

A
Cheapest Retailer
-
₹32,698 INR
£271 GBP
B+
Retailer 2
-
₹47,190 INR
$497 USD
View
A
Retailer 3
-
₹48,066 INR
ZAR 8,178 ZAR
View
A
Retailer 4
-
₹50,148 INR
€503 EUR
View
A
Retailer 5
-
₹52,924 INR
£439 GBP
View
A
Retailer 6
-
₹60,673 INR
$639 USD
View
A
Retailer 7
-
₹65,235 INR
A$1,057 AUD
View
B+
Retailer 8
-
₹90,203 INR
$950 USD
View
B+
Retailer 9
-
₹94,883 INR
$999 USD
View
B+
Retailer 10
-
₹1,12,145 INR
£930 GBP
View
B+
Retailer 11
-
₹1,13,845 INR
$1,199 USD
View
Most Expensive
B
Brilliant Earth
22163644A · Oct 31
₹1,56,668 INR
$1,650 USD
View
11 more retailers have this diamond
Prices start from ₹32,698 INRSave up to ₹1,23,970 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
1.78ct Marquise
₹32,698 INR