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Marquise|Lab Grown|IGI

1.78ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG780664014

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780664014

Diamond specifications and retailer prices

From ₹1,73,759 INR
$1,830 USD
As of October 31, 2026
Save ₹4,75,797 INR (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: ₹9,51,779 INR at With Clarity · As of October 31, 2026
View at With Clarity

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780664014 or 780664014. Listed at 15 retailers as of October 30, 2026, with a 274% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780664014
Dimensions12.38 × 6.33 × 4.01 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.38 mm6.33 mm1.78 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780664014
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.3%

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: Oct 31
Current: ₹2,62,367 INR|Low: ₹1,98,825 INR|High: ₹5,35,645 INR|Avg: ₹3,50,098 INR|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2₹1,98,825 INR
Retailer 7₹2,35,476 INR
Retailer 1₹2,62,367 INR
Retailer 9₹2,79,343 INR
Retailer 5₹2,94,806 INR
Retailer 4₹3,40,267 INR
Retailer 10₹3,56,063 INR
Retailer 8₹3,60,492 INR
Retailer 3₹4,83,371 INR
Retailer 11₹4,98,772 INR
Retailer 6₹5,31,425 INR

42 data points across 11 retailers

15 retailers₹1,73,759 INR to ₹6,49,556 INR

A
Cheapest Retailer
-
₹1,73,759 INR
$1,830 USD
A
Retailer 2
-
₹1,98,825 INR
$2,094 USD
View
B+
Retailer 3
-
₹2,26,057 INR
HK$18,600 HKD
View
B+
Retailer 4
-
₹2,35,476 INR
$2,480 USD
View
B+
Retailer 5
-
₹2,62,367 INR
£2,176 GBP
View
B+
Retailer 6
-
₹2,79,343 INR
$2,942 USD
View
B+
Retailer 7
-
₹2,94,806 INR
€2,957 EUR
View
B+
Retailer 8
-
₹3,40,267 INR
ZAR 57,894 ZAR
View
B
Retailer 9
-
₹3,56,063 INR
$3,750 USD
View
Retailer 10
-
₹3,60,492 INR
A$5,841 AUD
View
Price last confirmed 22 days ago
Retailer 11
-
₹4,83,371 INR
$5,091 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
₹4,98,772 INR
$5,253 USD
View
B
Retailer 13
-
₹5,31,425 INR
£4,407 GBP
View
B
Retailer 14
-
₹6,49,556 INR
$6,841 USD
View
Most Expensive
With Clarity
780664014 · Oct 31
₹9,51,779 INR
$10,024 USD
View
Price under review
14 more retailers have this diamond
Prices start from ₹1,73,759 INRSave up to ₹4,75,797 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
₹1,73,759 INR