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Radiant|Lab Grown|IGI

1.28ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731537069

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

Certificate IGI LG731537069

Diamond specifications and retailer prices

From ₹22,240 INR
As of November 4, 2026
Save ₹1,68,932 INR (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: ₹2,31,868 INR at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731537069 or 731537069. Listed at 16 retailers as of November 4, 2026, with a 760% 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

1.28
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731537069
Dimensions7.61 × 5.54 × 3.54 mm
L/W Ratio1.37
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
7.61 mm5.54 mm1.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731537069
Side View
Table 67.0%Crown 41°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 63.9%

Caratlytics Score

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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 4
Current: ₹2,31,868 INR|Low: ₹18,455 INR|High: ₹2,39,439 INR|Avg: ₹88,499 INR|-3.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 16₹19,780 INR
Retailer 14₹22,240 INR
Retailer 7₹22,998 INR
Retailer 5₹30,001 INR
Retailer 3₹33,503 INR
Retailer 8₹43,724 INR
Retailer 2₹51,484 INR
Retailer 12₹62,084 INR
Retailer 15₹66,059 INR
Retailer 17₹71,453 INR
Retailer 6₹84,230 INR
Retailer 4₹87,069 INR
Retailer 13₹1,04,672 INR
Retailer 10₹1,09,404 INR
Retailer 9₹1,85,021 INR
Retailer 11₹1,91,173 INR
Brilliant Earth₹2,31,868 INR

37 data points across 17 retailers

16 retailers₹22,240 INR to ₹1,91,173 INR

Retailer 1
-
₹19,780 INR
Price last confirmed 9 days ago
A
Retailer 2
-
₹22,240 INR
View
Final sale: no returns
Retailer 3
-
₹22,998 INR
View
Price last confirmed 8 days ago
A
Retailer 4
-
₹30,001 INR
View
B+
Retailer 5
-
₹33,503 INR
View
A
Retailer 6
-
₹51,484 INR
View
A
Retailer 7
-
₹62,084 INR
View
Retailer 8
-
₹66,059 INR
View
Price last confirmed 9 days ago
Retailer 9
-
₹71,453 INR
View
Price last confirmed 10 days ago
Retailer 10
-
₹84,230 INR
View
Price last confirmed 9 days ago
Retailer 11
-
₹87,069 INR
View
Price last confirmed 11 days ago
B+
Retailer 12
-
₹1,04,672 INR
View
B+
Retailer 13
-
₹1,09,404 INR
View
Retailer 14
-
₹1,85,021 INR
View
Price last confirmed 18 days ago
B
Retailer 15
-
₹1,91,173 INR
View
Most Expensive
Brilliant Earth
21405859Y · Oct 28
₹2,31,868 INR
$2,450 USD
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from ₹22,240 INRSave up to ₹1,68,932 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
1.28ct Radiant
₹22,240 INR