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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG816657809

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG816657809

Diamond specifications and retailer prices

From ₹55,731 INR
€559 EUR
As of October 31, 2026
Save ₹81,135 INR (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: ₹2,16,011 INR at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant 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 LG816657809 or 816657809. Listed at 9 retailers as of October 31, 2026, with a 146% 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

1.51
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.2°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816657809
Dimensions8.03 × 5.73 × 3.81 mm
L/W Ratio1.40
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
8.03 mm5.73 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816657809
Side View
Table 66.0%Crown 27.2°Girdle: Slightly ThickPavilion 35.6°Culet: NoneDepth 66.5%

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: ₹2,16,011 INR|Low: ₹46,051 INR|High: ₹2,18,860 INR|Avg: ₹96,822 INR|+4.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4₹55,731 INR
Retailer 5₹56,115 INR
Retailer 6₹58,869 INR
Retailer 3₹60,424 INR
Retailer 8₹96,089 INR
Retailer 7₹1,04,920 INR
Retailer 2₹1,36,866 INR
Rare Carat₹2,16,011 INR

42 data points across 8 retailers

9 retailers₹55,731 INR to ₹1,36,866 INR

A
Cheapest Retailer
-
₹55,731 INR
€559 EUR
A
Retailer 2
-
₹56,115 INR
$591 USD
View
A
Retailer 3
-
₹58,869 INR
$620 USD
View
A
Retailer 4
-
₹60,424 INR
£501 GBP
View
B+
Retailer 5
-
₹96,089 INR
$1,012 USD
View
B+
Retailer 6
-
₹1,07,104 INR
$1,128 USD
View
B+
Retailer 7
-
₹1,14,422 INR
$1,205 USD
View
B+
Retailer 8
-
₹1,36,866 INR
£1,135 GBP
View
Most Expensive
Rare Carat
NV54-113A · Oct 18
₹2,16,011 INR
$2,275 USD
View
Price last confirmed 14 days ago
8 more retailers have this diamond
Prices start from ₹55,731 INRSave up to ₹81,135 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
1.51ct Radiant
₹55,731 INR